An orthodontic space maintainer, and methods for preparing the same and preserving inter-dental spacing

Abstract

The present disclosure discloses an orthodontic space maintainer (100), and methods for preparing the same and preserving inter-dental spacing. The orthodontic space maintainer (100) includes an orthodontic band (102) configured to be circumferentially secured to a dental abutment, wherein the orthodontic band (102) features an outer surface (110) and a contoured inner surface (112) adapted to morphology and conforming to variable angulations within the dental arch. A tubular member (104) is securely affixed to the outer surface of the orthodontic band and extends in a direction opposite to the outer surface of the orthodontic band, the tubular member (104) being configured as a reception port. An adjustable loop (106) with a proximal end and a distal end is also provided, wherein the tubular member (104) receives the proximal end of the adjustable loop (106), and the proximal end is configured for mechanically securing the adjustable loop (106) within the tubular member to establish a fixed spatial relationship.

Description

AN ORTHODONTIC SPACE MAINTAINER, AND METHODS FOR PREPARING THE SAME AND PRESERVING INTER-DENTAL SPACINGField of the Invention

[0001] The present invention relates to an orthodontic space maintainer, and methods for preparing the same and preserving inter-dental spacing, more particularly to the orthodontic space maintainer, and methods for preparing the same and preserving inter-dental spacing following the premature loss of primary teeth.Background of the Invention

[0002] In paediatric dentistry, the premature loss of primary teeth can lead to space loss in the dental arch, disrupting the eruption of permanent teeth. If left unaddressed, neighbouring teeth may drift into the space, causing misalignment and malocclusion, which often requires complex orthodontic treatments later. Space maintainers are used to preserve this space, but traditional space maintainers require precise customization and adjustment to fit the dental arch of each patient, increasing treatment time and patient discomfort. Further, many devices are designed for specific sides of the arch, complicating inventory management and requiring separate left- and right-specific designs. Frequent adjustments or replacements during multiple visits are often necessary to ensure proper fit and function, resulting in prolonged treatment.

[0003] These conventional devices are also limited in their ability to adapt to varying patient needs, such as different arch shapes, tooth eruption patterns, or degrees of space loss. This lack of flexibility may result in suboptimal outcomes, necessitating additional procedures. As a result, there is a need for a versatile, efficient, and easy-to-use space maintainer that reduces the time, discomfort, and complexity typically associated with space maintenance procedures in paediatric dentistry.Summary of the Invention

[0004] In one aspect of the present invention, the invention relates to an orthodontic space maintainer apparatus for preserving inter-dental spacing within a dental arch, comprising an orthodontic band configured to be circumferentially secured to a dental abutment, the orthodontic band featuring an outer surface and a contoured inner surface adapted to morphology and conforming to variable angulations within the dental arch, a tubular member securely affixed to the outer surface of the orthodontic band and extending in a direction opposite to the outer surface of the orthodontic band, and configured as a reception port, and an adjustable loop with a proximal end and a distal end, wherein the tubular member receives the proximal end of the adjustable loop, and the proximal end is configured for mechanically securing the adjustable loop within the tubular member to establish a fixed spatial relationship. The advantage of this configuration is that it ensures stable and adaptable maintenance of precise tooth spacing, reduces unwanted tooth movement, and facilitates proper eruption alignment with minimal clinical adjustment.

[0005] In some of the exemplary embodiments of the present invention, the adjustable loop is U-shaped, having two parallel arms extending from the proximal end and a bent portion at the distal end. The advantageof this shape is that it improves stability and adaptability to different spacing needs, simplifying clinical fitting.

[0006] In some of the exemplary embodiments of the present invention, the parallel arms include pre-formed two or more notches and / or markings to establish the fixed spatial relationship and for length adjustment. The advantage of this feature is that it enables precise, repeatable adjustments without requiring fabrication of a new appliance.

[0007] In some of the exemplary embodiments of the present invention, the two or more notches and / or markings are configured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable loop through clear reference points, thereby establishing the fixed spatial relationship between the adjustable loop and the tubular member. The advantage of this configuration is that it improves accuracy and reduces chairside adjustment time.

[0008] In some of the exemplary embodiments of the present invention, the fixed spatial relationship between the adjustable loop and the tubular member is done by crimping the adjustable loop within the tubular member to define the inter-dental spacing. The advantage of this method is that it provides a secure, tamperresistant connection that remains stable during functional use.

[0009] In some of the exemplary embodiments of the present invention, the orthodontic band is obtained from biocompatible stainless steel and / or a medical-grade polymer. The advantage of this material choice is that it ensures durability, corrosion resistance, and patient safety.

[0010] In some of the exemplary embodiments of the present invention, the orthodontic band is optionally coated with an antimicrobial coating. The advantage of this coating is that it reduces bacterial accumulation, thereby improving oral hygiene during use.

[0011] In some of the exemplary embodiments of the present invention, the tubular member is made of a corrosion-resistant and abrasion-resistant material. The advantage of this choice is that it enhances the longevity of the device in the challenging intraoral environment.

[0012] In some of the exemplary embodiments of the present invention, the orthodontic band, the tubular member, and the adjustable loop are coated with an aesthetic material selected from medical -grade polymer, polymer-ceramic composite, and / or tooth-coloured ceramic.

[0013] In one aspect of the present invention, the invention relates to a method for preparing an orthodontic space maintainer, the method comprising circumferentially securing an orthodontic band to a dental abutment, the orthodontic band featuring an outer surface and a contoured inner surface adapted to morphology and conforming to variable angulations within the dental arch, affixing a tubular member to the outer surface of the orthodontic band and extending in a direction opposite to the outer surface of the orthodontic band, and configured as a reception port, providing an adjustable loop with a proximal end and a distal end, inserting the proximal end of the adjustable loop into the tubular member, and mechanically securing the adjustable loop within the tubular member to establish a fixed spatial relationship. The advantageof this method is that it ensures consistent assembly with precise engagement of components, improving device performance and lifespan.

[0014] In some of the exemplary embodiments of the present invention, the adjustable loop is U-shaped, having two parallel arms extending from the proximal end and a bent portion at the distal end. The advantage of this configuration is that it enhances stability, provides predictable alignment, and facilitates insertion into the tubular member.

[0015] In some of the exemplary embodiments of the present invention, the parallel arms include pre-formed two or more notches and / or markings to establish the fixed spatial relationship and for length adjustment. The advantage of this arrangement is that it provides quick and repeatable customization to individual patient needs.

[0016] In some of the exemplary embodiments of the present invention, the two or more notches and / or markings are configured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable loop through clear reference points, thereby establishing the fixed spatial relationship between the adjustable loop and the tubular member. The advantage of this is improved clinical precision and reduced adjustment errors.

[0017] In some of the exemplary embodiments of the present invention, the fixed spatial relationship between the adjustable loop and the tubular member is done by crimping the adjustable loop within the tubular member to define the inter-dental spacing. The advantage of this crimping method is that it creates a rigid lock, ensuring the spacing remains fixed over time.

[0018] In some of the exemplary embodiments of the present invention, the orthodontic band is obtained from biocompatible stainless steel and / or a medical-grade polymer. The advantage is that these materials provide optimal mechanical strength while remaining safe for intraoral use.

[0019] In some of the exemplary embodiments of the present invention, the orthodontic band is optionally coated with an antimicrobial coating. The advantage is that it minimizes microbial colonization, lowering the risk of plaque accumulation.

[0020] In some of the exemplary embodiments of the present invention, the tubular member is made of a corrosion-resistant and abrasion-resistant material. The advantage is enhanced device longevity even under constant exposure to oral fluids and chewing forces.

[0021] In one aspect of the present invention, the invention relates to an orthodontic space maintainer apparatus for preserving inter-dental spacing within a dental arch, comprising an orthodontic band configured to be circumferentially secured to a dental abutment, the orthodontic band featuring an outer surface and a contoured inner surface adapted to morphology, a tubular member securely affixed to the outer surface of the orthodontic band and extending in a direction opposite to the outer surface of the orthodontic band, and configured as a reception port, and an adjustable loop with a proximal end and a distal end, the adjustable loop being U-shaped and having two parallel arms extending from the proximal end and a bent portion at thedistal end, wherein the parallel arms include pre-formed two or more notches and / or markings for length adjustment, and the tubular member receives the proximal end of the adjustable loop for mechanical securement by engaging a selected notch and / or marking, thereby establishing a fixed spatial relationship and a defined inter-dental spacing. The advantage is that it allows millimetre-level precision in space preservation with ease of adjustment.

[0022] In some of the exemplary embodiments of the present invention, the contoured inner surface of the orthodontic band is further adapted to conform to variable angulations within the dental arch. The advantage is improved anatomical fit and comfort.

[0023] In some of the exemplary embodiments of the present invention, the two or more notches and / or markings are configured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable loop through clear reference points, thereby establishing the fixed spatial relationship between the adjustable loop and the tubular member. The advantage is a streamlined clinical workflow with reduced fitting errors.

[0024] In some of the exemplary embodiments of the present invention, the fixed spatial relationship between the adjustable loop and the tubular member is done by crimping the adjustable loop within the tubular member to define the inter-dental spacing. The advantage is long-term retention of the set spacing.

[0025] In some of the exemplary embodiments of the present invention, the orthodontic band is obtained from biocompatible stainless steel and / or a medical-grade polymer. The advantage is enhanced material reliability in oral conditions.

[0026] In some of the exemplary embodiments of the present invention, the orthodontic band is optionally coated with an antimicrobial coating. The advantage is improved hygiene and reduced bacterial accumulation.

[0027] In some of the exemplary embodiments of the present invention, the tubular member is made of a corrosion-resistant and abrasion-resistant material. The advantage is durability against oral wear.

[0028] In one aspect of the present invention, the invention relates to a method for preparing an orthodontic space maintainer, the method comprising circumferentially securing an orthodontic band to a dental abutment, the orthodontic band featuring an outer surface and a contoured inner surface adapted to morphology, affixing a tubular member to the outer surface of the orthodontic band and extending in a direction opposite to the outer surface of the orthodontic band, and configured as a reception port, providing an adjustable loop with a proximal end and a distal end, the adjustable loop being U-shaped and having two parallel arms extending from the proximal end and a bent portion at the distal end, wherein the parallel arms include pre-formed two or more notches and / or markings for length adjustment, inserting the proximal end of the adjustable loop into the tubular member, and mechanically securing the adjustable loop within the tubular member by engaging a selected notch and / or marking on both the parallel arms, thereby establishinga fixed spatial relationship and a defined inter-dental spacing. The advantage is efficient assembly and accurate customization.

[0029] In some of the exemplary embodiments of the present invention, the contoured inner surface of the orthodontic band is further adapted to conform to variable angulations within the dental arch. The advantage is patient-specific adaptability.

[0030] In some of the exemplary embodiments of the present invention, the two or more notches and / or markings are configured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable loop through clear reference points, thereby establishing the fixed spatial relationship between the adjustable loop and the tubular member. The advantage is precision control during installation.

[0031] In some of the exemplary embodiments of the present invention, the fixed spatial relationship between the adjustable loop and the tubular member is done by crimping the adjustable loop within the tubular member to define the inter-dental spacing. The advantage is secure locking with minimal maintenance.

[0032] In some of the exemplary embodiments of the present invention, the orthodontic band is obtained from biocompatible stainless steel and / or a medical-grade polymer. The advantage is robust, safe performance in the oral cavity.

[0033] In some of the exemplary embodiments of the present invention, the orthodontic band is optionally coated with an antimicrobial coating. The advantage is enhanced oral hygiene.

[0034] In some of the exemplary embodiments of the present invention, the tubular member is made of a corrosion-resistant and abrasion-resistant material. The advantage is extended functional life.

[0035] In one aspect of the present invention, the invention relates to an orthodontic space maintainer apparatus for preserving inter-dental spacing within a dental arch, comprising an orthodontic band configured to be circumferentially secured to a dental abutment, the orthodontic band featuring an outer surface and a contoured inner surface adapted to morphology and conforming to variable angulations within the dental arch, a tubular member securely affixed to the outer surface of the orthodontic band and extending in a direction opposite to the outer surface of the orthodontic band, and configured as a reception port, and an adjustable loop with a proximal end and a distal end, the adjustable loop being U-shaped and having two parallel arms extending from the proximal end and a bent portion at the distal end, wherein the parallel arms include pre-formed two or more notches and / or markings for length adjustment, and the tubular member receives the proximal end of the adjustable loop for mechanical securement by engaging a selected notch and / or marking, thereby establishing a fixed spatial relationship and a defined inter-dental spacing. The advantage is integration of secure locking and adjustability in a single appliance.

[0036] In some of the exemplary embodiments of the present invention, the two or more notches and / or markings are configured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable loop through clear reference points, thereby establishing the fixed spatial relationship between the adjustable loop and the tubular member. The advantage is user-friendly chairside adjustment.

[0037] In some of the exemplary embodiments of the present invention, the fixed spatial relationship between the adjustable loop and the tubular member is done by crimping the adjustable loop within the tubular member to define the inter-dental spacing. The advantage is reliable fixation of spacing.

[0038] In one aspect of the present invention, the invention relates to a method for preparing an orthodontic space maintainer, the method comprising circumferentially securing an orthodontic band to a dental abutment, the orthodontic band featuring an outer surface and a contoured inner surface adapted to morphology and conforming to variable angulations within the dental arch, affixing a tubular member to the outer surface of the orthodontic band and extending in a direction opposite to the outer surface of the orthodontic band, and configured as a reception port, providing an adjustable loop with a proximal end and a distal end, the adjustable loop being U-shaped and having two parallel arms extending from the proximal end and a bent portion at the distal end, wherein the parallel arms include pre-formed two or more notches and / or markings for length adjustment, inserting the proximal end of the adjustable loop into the tubular member, and mechanically securing the adjustable loop within the tubular member by engaging a selected notch and / or marking on both the parallel arms, thereby establishing a fixed spatial relationship and a defined inter-dental spacing. The advantage is that it offers repeatable, accurate fabrication steps.

[0039] In some of the exemplary embodiments of the present invention, the two or more notches and / or markings are configured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable loop through clear reference points, thereby establishing the fixed spatial relationship between the adjustable loop and the tubular member. The advantage is improved quality control in preparing.

[0040] In some of the exemplary embodiments of the present invention, the fixed spatial relationship between the adjustable loop and the tubular member is done by crimping the adjustable loop within the tubular member to define the inter-dental spacing. The advantage is strong retention over time.

[0041] In one aspect of the present invention, the invention relates to a method for preserving inter-dental spacing within a dental arch, the method comprising applying the orthodontic space maintainer as disclosed in any of the above aspects to a dental abutment. The advantage of this clinical method is that it provides a simple and efficient way to deploy the device across various orthodontic and pediatric dentistry applications, ensuring effective space preservation with minimal chairside time.Brief Description of the Drawings

[0042] The novel features and characteristics of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:

[0043] Fig. la illustrates a perspective view of the orthodontic space maintainer with straight segment configuration, in accordance with the various embodiments of the present disclosure.

[0044] Fig. lb illustrates a perspective view of the orthodontic space maintainer with non-planar curved segment configuration, in accordance with the various embodiments of the present disclosure.

[0045] Fig. 1c illustrates a perspective view of the orthodontic space maintainer with a straight segment with distal shoe extension configuration, in accordance with the various embodiments of the present disclosure.

[0046] Fig. 2a illustrates a perspective view of the orthodontic space maintainer along with notches and / or markings on the adjustable loop with a straight segment configuration, in accordance with the various embodiments of the present disclosure.

[0047] Fig. 2b illustrates a perspective view of the orthodontic space maintainer along with notches and / or markings on the adjustable loop with a non-planar curved segment configuration, in accordance with the various embodiments of the present disclosure.

[0048] Fig. 2c illustrates a perspective view of the orthodontic space maintainer along with notches and / or markings on the adjustable loop with a straight segment with distal shoe extension configuration, in accordance with the various embodiments of the present disclosure.

[0049] Fig. 3 illustrates a flow chart depicting a method for preparing the orthodontic space maintainer, in accordance with the various embodiments of the present disclosure.

[0050] Fig. 4 illustrates a flow chart depicting a method for preparing the orthodontic space maintainer, in accordance with the various embodiments of the present disclosure.

[0051] Fig. 5 illustrates a flow chart depicting a method for preparing the orthodontic space maintainer, in accordance with the various embodiments of the present disclosure.

[0052] The figures depict embodiments of the inventions for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.Detailed Description of the Invention

[0053] Detailed embodiments and implementations of the claimed subject matter are disclosed herein in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. It shall be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matter, which may be embodied in various forms. The present disclosure may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that the description of the present disclosure is thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. Specifically, the terminologies in the embodiments of the present disclosure are merely for describing thepurpose of a certain embodiment, but not to limit the disclosure. In the description below, details of well- known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations.

[0054] The particular configurations discussed in the following description are non-limiting examples that can be varied and are cited merely to illustrate at least one embodiment and are not intended to limit the scope thereof.

[0055] The present invention relates to an orthodontic space maintainer, and methods for preserving interdental spacing and preparing the same. The present invention relates to an orthodontic space maintainer apparatus configured for preserving inter-dental spacing within the dental arch after premature loss of primary or permanent teeth. The apparatus prevents mesial or distal migration of adjacent teeth, thereby maintaining proper alignment for subsequent tooth eruption. The invention further includes structured methods for preparing the space maintainer using anatomically contoured bands, adjustable loops, and locking mechanisms. Precision preparing techniques such as laser welding, additive manufacturing, or thermoforming are employed to ensure durability and patient-specific fit. The disclosed methods also address clinical procedures for installation, adjustment, and long-term stability of the device within the oral cavity.

[0056] The present invention offers a multitude of non-limiting benefits for both clinicians and patients, significantly advancing orthodontic space management. The innovative design provides enhanced interdental space preservation with precise control over spacing, ensuring predictable outcomes. The conformity of the orthodontic band to varied tooth morphology and variable angulations facilitates secure and stable circumferential retention, adapting seamlessly to individual patient anatomy. The adjustable loop enables easy and precise length customization through pre-formed notches or laser markings, leading to quick, repeatable adjustments and reduced chair time. Its reliable mechanical securement within the tubular member ensures a stable fixed spatial relationship, preventing unintended changes in positioning. The use of biocompatible stainless steel and / or medical-grade polymers prioritizes patient safety and device durability, while optional antimicrobial coatings further enhance oral hygiene and prevent localized infections. The corrosion-resistant and abrasion-resistant tubular member contributes to the apparatus's longevity and reliable performance. Furthermore, the versatility in distal loop configurations, including straight, curved, or distal shoe extensions, allows for highly customized treatment, effectively guiding unerupted teeth and optimizing overall orthodontic care by reducing patient discomfort and improving clinical efficiency.

[0057] The present disclosure discloses to the orthodontic space maintainer apparatus for preserving interdental spacing within the dental arch, particularly following premature tooth loss. The following description illustrates various embodiments that enable the invention, describing structural components, materials, configurations, and methods of implementation and use.

[0058] Fig. 1 A-1C illustrates the orthodontic space maintainer (100). The orthodontic space maintainer (100) includes an orthodontic band (102), a tubular member (104), and an adjustable loop (106).

[0059] The orthodontic band (102) of the orthodontic space maintainer (100) may be configured to secure to a dental abutment. In one of the preferred embodiments of the present disclosure, the orthodontic band (102) of the orthodontic space maintainer (100) may be circumferentially encircled or circumferentially secured to the dental abutment, typically a molar or premolar, with sufficient retention to withstand masticatory forces. In one of the exemplary embodiments of the present disclosure, the orthodontic band (102) of the orthodontic space maintainer (100) may be pre-contoured to match the patient-specific tooth anatomy. In an alternative embodiment of the present disclosure, the orthodontic band (102) of the orthodontic space maintainer (100) may be thermoformed to match the patient-specific tooth anatomy.

[0060] The orthodontic band (102) as disclosed in the present disclosure may be a pre-formed or custom- fabricated structural component that may be designed to be circumferentially secured to the dental abutment, such as a molar or premolar. The phrase "circumferentially secured" may refer to the complete or nearcomplete encircling of the clinical crown of the tooth, ensuring maximal retention and mechanical stability under oral forces, including mastication and occlusal loading. This configuration may ensure that the band remains anchored without displacement during normal oral function.

[0061] The term dental abutment may refer to a natural tooth structure, most often a molar or premolar, that may be used as a foundational support for prosthetic or orthodontic appliances. The orthodontic band (102) may be dimensioned to match the crown anatomy of specific abutments. In one of the exemplary embodiments of the present disclosure, a first permanent molar may be selected as the abutment for a pediatric patient who may have lost a second primary molar prematurely. In another exemplary embodiment of the present disclosure, the second premolar may serve as the abutment for a teenage patient undergoing fixed orthodontic treatment requiring preservation of bicuspid spacing.

[0062] The orthodontic band (102) may include an outer surface (110). The outer surface (110) of the orthodontic band (102) may function as the interface for attachment of other device components, such as the tubular member (104) or auxiliary hook. This surface may typically be smooth, but may include machined slots, welding points, or alignment guides. In one of the exemplary embodiments of the present disclosure, the outer surface (110) may include a spot-welded base tube that may be aligned buccally to support insertion of the adjustable loop (106). In another exemplary embodiment of the present disclosure, a guide groove may be incorporated to align locking mechanisms or sensor modules.

[0063] Additionally, the orthodontic band (102) may include an inner surface (112). In one of the exemplary embodiments of the present disclosure, the inner surface (112) of the orthodontic band (102) may be a contoured inner surface (112). The inner surface (112) of the orthodontic band (102) may be contoured to match the complex topography of the tooth crown. The contouring may not be flat but may include concavities, convexities, and relief zones that may correspond to the buccal groove, mesial line angle, distal marginal ridge, and lingual surfaces of the abutment tooth. In one of the exemplary embodiments of the present disclosure, the band inner surface (112) may include preformed curvatures for a mandibular molarwith prominent buccal cusps. In another exemplary embodiment of the present disclosure, the band may include variable thickness regions to accommodate atypical crown morphology in a patient with enamel hypoplasia or restorations.

[0064] The orthodontic band (102) may be configured to conform to variable angulations within the dental arch. This refers to the natural tilts and rotations of teeth across the maxillary or mandibular arch. In one of the exemplary embodiments of the present disclosure, a maxillary first molar may be mesially inclined due to previous space loss; in such a case, the band may be angled to match this inclination. In another exemplary embodiment of the present disclosure, the band for a lingually rotated premolar may include asymmetrical curvatures to maintain tight engagement despite the abnormal orientation.

[0065] In one of the exemplary embodiments of the present disclosure, the orthodontic band (102) may be fabricated from biocompatible stainless steel or a durable medical-grade polymer, selected to ensure corrosion resistance and compatibility with oral tissues. This enables prolonged intraoral placement without adverse tissue reactions. The band may be fabricated from biocompatible stainless steel and / or medical-grade polymer, ensuring durability, corrosion resistance, and intraoral safety. In one of the exemplary embodiments of the present disclosure, the band may be made from Type 316L stainless steel, commonly used in medical implants due to the high chromium and molybdenum content. In a polymer-based variation, the band may be produced using polyetheretherketone (PEEK), offering flexibility, low weight, and compatibility with CAD / CAM milling. A hybrid embodiment may include a stainless steel band lined with polymeric cushioning, improving comfort for pediatric patients.

[0066] In one of the exemplary embodiments of the present disclosure, the orthodontic space maintainer (100) is configured with at least one component, such as the orthodontic band (102), the tubular member (104), or the adjustable loop (106), fabricated from or coated with an aesthetic or tooth-coloured material to improve visual acceptance during intraoral use. In one example, the orthodontic band (102) may be formed from a medical-grade polymer such as polyetheretherketone (PEEK) or reinforced polycarbonate, each having intrinsic tooth-coloured shades that blend with natural dentition. In another example, the tubular member (104) may be provided with a polymer-ceramic composite coating or a zirconia-based ceramic coating that exhibits enamel-like colour and translucency. In yet another example, the adjustable loop (106) may be coated with a polymeric layer matched to standard dental shade guides, thereby achieving improved aesthetics while maintaining mechanical integrity. The advantage of such aesthetic and tooth-coloured embodiments is enhanced patient comfort and compliance, particularly in paediatric and teenage patients where metallic appliances may cause psychological or social discomfort.

[0067] Further, the orthodontic band (102) may be coated with an antimicrobial coating. In one of the exemplary embodiments of the present disclosure, to enhance clinical outcomes and reduce microbial colonization, the outer and / or inner surface (112)s of the band may be coated with antimicrobial agents. For instance, a silver nanoparticle coating may be applied using plasma deposition, creating a long-lastingantimicrobial surface effective against Streptococcus mutans and Porphyromonas gingivalis. In another instance, a chlorhexidine-loaded polymer film may be applied that may gradually release the antimicrobial agent over time. In yet another instance, a photoactivated titanium dioxide layer may be coated on the orthodontic band (102), which may become antimicrobial under UV exposure.

[0068] In one example, a 7-year-old child loses the lower right second primary molar. A stainless-steel band contoured to fit the first permanent molar is selected. The outer surface (110) supports a tubular port for loop insertion. The inner surface (112) conforms tightly to the irregular anatomy of the molar.

[0069] In another example, a teenage patient requires space maintenance after extraction of the first premolar. A 3D-printed polymeric band custom-designed from an intraoral scan fits snugly on the second premolar. A chlorhexidine layer reduces risk of plaque accumulation during prolonged use.

[0070] In another example, an adult patient with high oral acidity receives a titanium-coated stainless steel band for corrosion resistance. The device includes silver impregnation to mitigate bacterial growth due to limited oral hygiene capacity.

[0071] In one of the exemplary embodiments of the present disclosure, the orthodontic band (102) may be pre-formed using die-pressing with multiple standard sizes available (e g., sizes 1-32) for different teeth. In another exemplary embodiment of the present disclosure, thermoforming techniques may be employed to mold the polymer sheet directly over a 3D scan of the patient’s tooth to create a truly custom fit. In another exemplary embodiment of the present disclosure, an additive manufacturing may be used to incorporate microchannels or fenestrations in the band body to facilitate fluid flow and reduce plaque retention.

[0072] Thetubular member (104) of the orthodontic space maintainer (100) may refer to a hollow, cylindrical or oval-shaped structural component that may serve as a mechanical interface for other devices or components. The tubular member (104) may feature a longitudinal axis and an internal bore, designed to allow insertion, guidance, or anchoring of another structural element typically a wire, bar, or loop in orthodontic or prosthodontic applications.

[0073] In one of the exemplary embodiments of the present disclosure, the tubular member (104) may be circular in cross-section and may include an internal diameter of at least 1 mm, suitable for receiving stainless steel orthodontic wires. In another exemplary embodiment of the present disclosure, the tubular member (104) may be elliptical in cross-section to accommodate a flat or ribbon-like retention arm.

[0074] The tubular member (104) of the orthodontic space maintainer (100) may be permanently and mechanically bonded to the outer surface (110) of the orthodontic band (102), ensuring that the tubular member (104) may remain stable and immovable under physiological forces. In one of the exemplary embodiments of the present disclosure, the tubular member (104) may be laser- welded to the band, producing a seamless junction with high shear strength. In another exemplary embodiment of the present disclosure, adhesive bonding using a medical-grade epoxy may be employed when the tubular member (104) may becomposed of polymer and the band may be metallic. A mechanical interlock may also be used, wherein a slot or depression is created on the band’s outer surface (110) to house and secure the tubular element.

[0075] The tubular member (104) may extend in a direction opposite to the outer surface (110) of the orthodontic band (102) suchthatthe tubular member (104) protrudes outward, away from the curved contour of the orthodontic band (102). The protrusion may allow functional clearance for receiving and guiding external components such as arms, loops, or rods. For example, in a molar band positioned on the buccal side, the tubular member (104) extends bucco-laterally, enabling a spring-loaded cantilever to be inserted. In another configuration, the tubular member (104) extends distally and slightly upward, aligned with the insertion path of a transpalatal arch.

[0076] The tubular member (104) may function as a reception port, that is, an entry point or housing channel to receive and retain an auxiliary element and / or the adjustable loop (106). In one of the exemplary embodiments of the present disclosure, the reception port may be configured to receive a U-shaped wire used in a lingual arch appliance. In another exemplary embodiment of the present disclosure, the tubular member (104) may act as a socket for receiving a cantilever arm designed to apply distalizing force to the molars. In another exemplary embodiment of the present disclosure, the reception port may include internal ridges or a crimping slot to provide resistance against the movement of the inserted element.

[0077] In one of the exemplary embodiments of the present disclosure, the tubular member (104) may be composed of a material that may withstand long-term intraoral exposure to saliva, temperature fluctuations, pH changes, and mechanical wear. In one of the exemplary embodiments of the present disclosure, the tubular member (104) may be made from Medical-grade stainless steel, i.e., 316L. In general, 316L stainless steel is commonly used in medical applications due to biocompatibility, corrosion resistance, and mechanical properties. In an alternate embodiment of the present disclosure, the tubular member (104) may be made from titanium or titanium alloys, i.e., Ti-6A1-4V. In general, Ti-6A1-4V, also known as titanium grade 5, is a popular titanium alloy used in dental space maintainer (100) and other dental applications due to excellent mechanical properties, biocompatibility, and corrosion resistance. In another alternate embodiment of the present disclosure, the tubular member (104) may be made from cobalt-chromium alloys. In general, cobaltchromium (Co-Cr) alloys are frequently used in dental space maintainer (100) due to their strength, corrosion resistance, and biocompatibility. In another alternate embodiment of the present disclosure, the tubular member (104) may be made from High-performance polymers, i.e., PEEK or Ultem. In general, PEEK is a semi-crystalline thermoplastic known for its excellent mechanical strength, stiffness, and high resistance to wear, chemicals, and high temperatures. In dental space maintainer (100), PEEK offers a bone-like modulus of elasticity, which can help distribute occlusal forces more physiologically, potentially reducing stress on surrounding bone and teeth. Ultem is an amorphous thermoplastic characterized by its high strength, rigidity, and excellent resistance to heat, chemicals, and repeated sterilization cycles (e.g., autoclaving). In dental applications, Ultem's high dielectric strength and dimensional stability are beneficial. In another alternateembodiment of the present disclosure, the tubular member (104) may be made from ceramic-based coatings, i.e., alumina-toughened zirconia. In general, ceramic coatings, especially alumina-toughened zirconia (ATZ), are being explored in dental space maintainer (100) for their potential advantages in biocompatibility, strength, and wear resistance.

[0078] In one of the exemplary embodiments of the present disclosure, the tubular member (104) may be welded to the buccal surface of a molar band on the lower first molar. A 0.036-inch stainless steel wire forming a lingual arch may be inserted through the reception port and anchored bilaterally. The band may resist mesial drift of adjacent teeth after early molar loss.

[0079] In another exemplary embodiment of the present invention, the tubular member (104) may feature a slight upward bend and a locking slit. A pre-activated T-loop may be inserted into the tube and may apply a distal force to move a premolar. The material is titanium, selected for reduced allergic response in a sensitive patient.

[0080] In another exemplary embodiment of the present disclosure, the tubular member (104) may be longer and may include an internal telescoping rod that expands under spring tension. The reception port may house the sliding arm, which may apply pressure to regain space lost due to drifting molars. The tube may be made from PEEK, which may reduce the risk of metal sensitivity.

[0081] In another exemplary embodiment of the present disclosure, the two tubular member (104)s may be attached to opposite molar bands. A removable NiTi archwire may be inserted across the arch, passing through both tubes. The tubes act as stabilizers for maxillary expansion retention.

[0082] In another exemplary embodiment of the present disclosure, the tubular member (104) may be coated with a fluoride-impregnated polymer, which may gradually release fluoride ions to prevent decalcification around the base of the orthodontic band (102). This embodiment may be suitable for pediatric patients with poor oral hygiene.

[0083] In another exemplary embodiment of the present disclosure, the tubular member (104) may integrate a miniature RFID sensor within the tubular member (104), which may allow detection of appliance removal or insertion during orthodontic monitoring. The tubular member (104) may be made of biocompatible plastic with embedded conductive tracks.

[0084] The tubular member (104) may be a versatile structural element of the orthodontic space maintainer (100), enabling multiple mechanical functionalities, compatibility with varied force systems, and integration with modern sensor and biocompatible technologies. The design of the tubular member (104) may allow clinicians to modularly customize appliances to address a broad range of dental arch conditions, tooth positions, and patient-specific requirements.

[0085] In one of the exemplary embodiments of the present disclosure, the tubular member (104) may be a hollow, cylindrical or shaped conduit that may serve as a receiving and locking mechanism for the adjustable loop (106). The tubular member (104) may be permanently affixed to the outer surface (110) of theorthodontic band (102) and may provide directional guidance, spatial fixation, and mechanical retention for the proximal end of the adjustable loop (106).

[0086] In one of the exemplary embodiments of the present disclosure, the adjustable loop (106) may be a U-shaped metallic wire or biocompatible polymer structure which may be used to maintain or control interdental spacing. The adjustable loop (106) may include a proximal end and a distal end. The adjustable loop (106) may further include two parallel arms. In one of the exemplary embodiments of the present disclosure, the proximal end may be inserted into the reception point, and the proximal end of the adjustable loop (106) may be configured for mechanical securing within the tubular member (104) to establish a fixed spatial relationship in order to preserve inter-dental spacing within the dental arch.

[0087] In one of the exemplary embodiments of the present disclosure, the tubular member (104) including the reception port may function as a socket or housing. The proximal end of the adjustable loop (106) may be slid into the reception port of the tubular member (104). This design may ensure that guided insertion may maintain angular orientation and may enable depth control. In an example, a 0.8 mm inner diameter stainless steel tube may receive a 0.75 mm wire, allowing for frictional engagement with minimal play.

[0088] The adjustable loop (106) may be configured for mechanically securing the proximal end within the tubular member (104). In one of the exemplary embodiments of the present disclosure, the tubular member (104) may not just be a passive sleeve; the tubular member (104) may include features to lock or grip the adjustable loop (106) in place. The mechanical securing may include crimping the tube over a pre-formed notch in the parallel arms of the adjustable loop (106). In one of the exemplary embodiments of the present disclosure, the mechanical securing may be, but may not be limited to, a screw-based locking for the reusable system, a spring clip or detent for snap-fit engagement, and a laser spot welding at a selected position for permanent anchoring. For example, a laser-marked wire may be inserted to a specific mark at 12 mm, and a side screw on the tubular member (104) may be locked in place, ensuring consistent molar spacing.

[0089] In one of the exemplary embodiments of the present disclosure, once the adjustable loop (106) may be secured, the adjustable loop (106) may remain in a non-sliding, fixed position, preserving the desired inter-dental distance and appliance orientation. Such an embodiment is crucial for preventing molar mesialization and avoiding changes due to mastication or tongue pressure.

[0090] The adjustable loop (106), including the two parallel arms, may include pre-formed two or more notches, Laser markings (108), ink markings, chemical etching, electrolytic etching. Markings on space maintainer (100) loops such as notches, Laser markings (108), ink markings, chemical etching, and electrolytic etching may serve a critical role in ensuring precise, repeatable, and clinically reliable placement of the adjustable loop (106) within a tubular member (104). These markings act as reference points for orthodontists to control the insertion depth, angular alignment, and final interdental spacing, thereby enhancing the overall functionality and predictability of the appliance.

[0091] Notches are physical micro-indentations or grooves machined or stamped into the loop wire at fixed intervals, typically ranging from 1 mm to 5 mm apart. These notches may provide tactile and mechanical engagement points within the tubular member (104). When the adjustable loop (106) is inserted, the notch may interface with an internal projection, screw, or crimp inside the tube, thus locking the loop in place without additional components. The notches are especially useful in snap-fit or crimped assemblies and provide a secure, non-sliding fit that is resistant to masticatory forces and patient movement.

[0092] Laser markings (108), on the other hand, are non-invasive visual indicators engraved using a focused laser beam. These marks do not alter the structural geometry of the wire but offer high-contrast, precise calibration points. Commonly spaced at intervals like 2 mm or 5 mm, these markings allow the clinician to visually align the loop during insertion, ensuring consistent placement across clinical visits or among multiple practitioners. Laser marking may be particularly advantageous for preformed loops made from stainless steel, NiTi, or titanium, as it creates durable, non-fading marks that remain visible even after sterilization and extended intraoral use. Additionally, Laser markings (108) can be color-coded using laser annealing techniques to enhance readability.

[0093] Ink marking may be a simpler, cost-effective method that may involve printing colored reference lines onto the loop wire using specialized biocompatible inks. These markings may be easily visible under chairside lighting and can be rapidly applied during bulk manufacturing or custom preparation. Though not as durable as laser or etched markings, high-quality permanent inks can last long enough for short to mediumterm applications. Ink marking may often be used in temporary or trial loops where long-term durability is not critical.

[0094] Chemical etching may provide another layer of precision, particularly for metal-based loops. In this method, a masking pattern may be applied to the wire surface, and then an acid or chemical solution may be used to etch exposed areas. The result may be a recessed marking that may be both precise and long-lasting. Chemical etching may be suitable for creating serial numbers, brand logos, or depth markings on orthodontic appliances. Chemical etching may ensure the markings remain intact even after repeated sterilizations and oral exposure.

[0095] Electrolytic etching, also known as electrochemical marking, may be used to engrave fine, corrosionresistant identification or calibration marks on stainless steel or titanium loops. This method may apply a mild electric current through a stencil soaked in electrolyte solution. Electrolytic etching may create subsurface etchings that may be smooth, minimally invasive, and free from sharp edges or debris, which may be ideal for patient safety and hygiene. Electrolytic etching may be particularly valued in high-precision applications, such as pre-measured space maintainer (100)s may be used in standardized treatment protocols.

[0096] Together, these technologies may enable a range of marking strategies that may be both functional and clinically impactful. The markings may appear as numerical depth indicators (e.g., 6 mm, 8 mm, 10 mm), directional arrows, color bands, or graduated scales. In advanced designs, digital scanning and CAD / CAMintegration may also allow pre-marked loops to be matched against a digital template, thereby standardizing appliance placement across multiple clinics or practitioners.

[0097] In one of the exemplary embodiments of the present disclosure, notches may be mechanical features that may serve as physical locking points along the parallel arms of an orthodontic adjustable loop (106). These notches are typically created as micro-grooves or indentations formed at regular intervals, commonly every 2 mm or at custom positions such as 8 mm, 10 mm, and 12 mm along the wire that includes the adjustable loop (106). The primary purpose of these notches is to provide discrete, pre-defined locations where the loop may be mechanically secured within the tubular member (104) affixed to the orthodontic band (102). When the proximal end of the loop may be inserted into the tubular member (104), an internal component such as a set screw, crimping surface, detent, or snap-fit projection inside the tube engages with one of these notches, effectively anchoring the loop in place. This locking mechanism may prevent the loop from sliding or rotating, maintaining a fixed spatial relationship and ensuring that the inter-dental spacing remains consistent during treatment.

[0098] From a clinical perspective, notches are highly advantageous as they offer a repeatable, stable means of positioning the loop. For instance, if a loop has notches at 8 mm, 10 mm, and 12 mm, and the orthodontist determines that a 10 mm spacing is optimal for maintaining the space of a missing premolar, the loop may be inserted up to the 10 mm notch and securely locked at that point. This allows for accurate control of the distance between the anchoring band and the distal extension of the loop, supporting effective space management and reliable tooth guidance during growth or eruption. Additionally, if future adjustments are needed, the loop can be repositioned by moving it to a different notch, thereby enabling incremental changes without removing or replacing the entire appliance.

[0099] Laser markings (108), on the other hand, serve as non-invasive visual indicators along the surface of the loop arms. Unlike notches, these markings do not involve material removal or alteration of the loop's structural profile; instead, they are shallow, high-contrast engravings applied using precision laser technology. These Laser markings (108) are typically spaced at consistent intervals, such as every 2 mm and are used by orthodontists to visually align the loop during insertion into the tubular member (104). Although they do not provide mechanical locking on their own, Laser markings (108) greatly assist in accurate positioning, especially in clinical settings where visual confirmation of depth is crucial. For example, a loop might have Laser markings (108) at 6 mm, 8 mm, 10 mm, and 12 mm. The orthodontist can visually align a chosen marking with the end of the tube to ensure that the loop is inserted to the desired depth, which corresponds to a specific inter-dental space.

[0100] Together, notches and Laser markings (108) enhance both the mechanical and visual control of space maintainer (100) loop insertion. In some designs, both features are combined, laser markings (108) offer guidance for positioning, while notches enable secure locking at the selected position. This dual-system approach ensures precision, adjustability, and ease of use, reducing chairside time and improving treatmentreliability. These features are particularly useful in pediatric and mixed dentition cases, where space maintenance is critical and appliance repositioning may be required over time due to growth and dental development. Ultimately, these marking technologies allow for more effective, repeatable, and patientspecific treatment planning and appliance adjustment, contributing significantly to the success and longevity of the orthodontic space maintainer (100).

[0101] In one of the exemplary embodiments of the present disclosure, once the adjustable loop (106) is fixed at a chosen and / or selected notch or laser mark, the distance between the orthodontic band (102) and the distal end of the loop defines the inter-dental spacing. Such a configuration may accurately prosthodontic planning. Further, the configuration may maintain space for unerupted or extracted teeth.

[0102] The interaction between the tubular member (104) and the adjustable loop (106) defines the modularity and flexibility of the orthodontic appliance. The adjustable loop (106), which is typically U- shaped, features a proximal end that is inserted into the internal lumen of the tubular member (104), two parallel arms extending from the proximal end, and a distal end that may vary in shape. The proximal end serves as the anchoring interface, and its engagement with the tubular member (104) is fundamental for establishing a fixed spatial distance within the dental arch. The tubular member (104) acts as a housing sleeve, guiding the proximal end into its intended depth and orientation. Depending on clinical preference, the internal diameter of the tubular member (104) is slightly larger than the cross-sectional diameter of the adjustable loop (106) to allow for a snug but insertable fit. For example, a 0.75 mm stainless steel wire can be received by a 0.8 mm inner diameter tube to allow slight tolerance while preserving mechanical friction.

[0103] The securing of the adjustable loop (106) within the tubular member (104) is achieved through various mechanical strategies designed to immobilize the wire at a precise position. The tubular member (104) may include side apertures or deformable segments for crimping over a preformed notch on the loop wire, creating a mechanical lock. Alternatively, a threaded insert, micro-set screw, or detent mechanism may be embedded in the tube body to enable reusability and periodic repositioning. In permanent applications, a laser weld or high-strength dental adhesive may be employed once the desired insertion depth is achieved. This mechanical fixation is essential to ensure the loop remains stationary during dynamic oral activities such as mastication, speech, and brushing, thereby ensuring the preservation of the defined inter-dental spacing.

[0104] Integral to the design of the adjustable loop (106) are pre-formed notches and / or Laser markings (108) positioned at intervals along the parallel arms. These features serve dual functions: as visual cues for the clinician and as mechanical engagement points for securing the loop within the tubular member (104). Notches are shallow circumferential or partial grooves that provide a tactile catchment zone inside the tube, allowing a crimping or locking mechanism to hold the wire at a specific length. Laser markings (108), typically non-invasive and precise, act as reference lines spaced at uniform distances, such as every 2 mm, so the clinician can select the most appropriate insertion depth. This modularity supports individualized treatment planning, such as maintaining space for an unerupted canine or premolar with millimetric precision.

[0105] Once the proximal end of the adjustable loop (106) is locked at a designated notch or marking within the tubular member (104), the loop achieves a fixed spatial relationship with respect to the orthodontic band (102). This static positioning is critical for maintaining the exact inter-dental distance required for guiding eruption paths, prosthodontic replacements, or preventing drifting of adjacent teeth. By mechanically resisting displacement, the system ensures continuity in treatment outcomes, eliminating variability due to functional forces exerted by the tongue, cheeks, or occlusion. For instance, in cases where the second deciduous molar has been extracted prematurely, the device ensures that space is reserved for the incoming first permanent molar or a dental implant site.

[0106] The distal end of the adjustable loop (106) offers additional customization based on anatomical requirements. It may be configured as a straight segment for passive space retention, a non-planar curved segment for anatomically contoured fitting, or a straight segment with a distal shoe extension. The straight segment is suitable when the objective is simply to prevent mesial migration of a molar into an extraction site. The curved segment may be designed to wrap around erupting teeth or avoid anatomical obstructions. The distal shoe extension is a specialized design wherein a subgingival paddle or blade guides the erupting molar into the correct path, especially beneficial in pediatric patients with early molar loss. These variants broaden the utility of the system across different age groups and treatment objectives.

[0107] The material construction of the tubular member (104) plays a vital role in long-term clinical performance. High-grade stainless steel, such as AISI 316L, is preferred due to its resistance to corrosion, biological inertness, and compatibility with standard orthodontic bonding agents. In high-demand applications, titanium alloys or polymer composites with ceramic coatings may be used for additional abrasion resistance. Enhancements such as internal anti-rotation ridges may be added to the internal wall of the tubular member (104) to prevent axial twisting of the inserted loop. Visual inspection slots may be included to monitor notch engagement, and the tube itself may be fabricated with a slight mesial or distal tilt, typically around 10 degrees, to accommodate anatomical variation in the dental arch. These design features enable the tubular member (104) to perform under a range of clinical stresses while maintaining precise spatial integrity.

[0108] Several embodiments illustrate the diverse applications of the tubular member (104) in orthodontics. In pediatric dentistry, a molar band equipped with a buccally positioned tubular member (104) and a notched adjustable loop (106) terminating in a distal shoe can effectively maintain the eruption path of a first permanent molar following early loss of a second primary molar. In adult patients preparing for prosthodontic implants, a straight distal-end loop held at a laser-marked 10 mm insertion point ensures consistent spacing for the eventual crown and abutment. Modular systems have also been developed in which the tubular member (104) includes a threaded cap, allowing the loop wire to be exchanged between treatment phases, particularly in serial extraction protocols. In advanced designs, digitally calibrated loops marked by lasercorrespond to insertion guidelines in a clinical software interface, enabling uniform treatment across multilocation orthodontic practices.

[0109] The tubular member (104) is a cornerstone of the orthodontic space maintainer (100) system, serving as a precision-guided, load-bearing, and customizable interface for the adjustable loop (106). Its ability to receive, orient, lock, and secure the loop underlies the system’s functionality, ensuring stable interdental spacing through a broad spectrum of anatomical, developmental, and procedural contexts. The combined use of mechanical interlocks, visual markers, advanced materials, and patient-specific design variants makes the tubular member (104) an indispensable structural and functional component in modern orthodontic appliances.

[0110] The adjustable loop (106) may include the distal end configurations of space maintainer (100) loops that may be critical in ensuring the appliance provides not just retention of space but also facilitates proper dental development and eruption. These configurations refer to the design of the terminal portion of the loop, which may extend into or near the edentulous (toothless) area where a permanent tooth is expected to erupt. [OHl] The straight segment is the simplest configuration, characterized by a linear extension of the wire into the edentulous space. It is typically used for passive space maintenance where no active guidance is needed. This configuration is particularly suitable in cases where the space needs to be preserved between a permanent molar and an unerupted tooth such as a canine. The straight design ensures that the wire does not interfere with the normal path of eruption and serves solely to prevent mesial drift of the adjacent teeth.

[0112] The non-planar curved segment is a more anatomically adaptive design that involves a curved distal end to follow the natural contour of the dental arch or to bypass erupting teeth. This configuration is useful when adj acent teeth, such as premolars, are in the process of erupting, and a straight segment would otherwise obstruct their path. For example, a loop might be curved upward or buccally to avoid an erupting second premolar, allowing the natural eruption process to continue without hindrance while still preserving the required space.

[0113] The straight segment with distal shoe extension represents a more specialized design often used in pediatric dentistry. In this configuration, a metallic paddle or blade, referred to as a distal shoe, is attached to the distal end of the wire and extends subgingivally (below the gum line). This blade is designed to engage with the mesial surface of the unerupted first permanent molar and guide its eruption into the correct position. This is particularly important in cases where the second deciduous molar has been lost prematurely, as the absence of that molar could otherwise allow the first permanent molar to drift mesially and erupt improperly. The distal shoe ensures that the molar follows its intended eruption path, thereby preserving the alignment and occlusion of the developing dentition.

[0114] Each of these distal end configurations serves a distinct clinical purpose, and the selection depends on factors such as the patient's age, the stage of dental development, and whether active guidance or passive maintenance is needed. By tailoring the design of the distal end, orthodontists and pediatric dentists canoptimize the function and effectiveness of the space maintainer (100) for both immediate and long-term dental outcomes.

[0115] The tubular member (104) in a space maintainer (100) may be constructed from materials that are corrosion-resistant, such as 316L stainless steel or titanium, to ensure long-term durability within the moist and chemically active oral environment. The tubular member (104) may also need to be abrasion-resistant to withstand repeated contact with the inserted loop wire, especially during adjustments or minor movements. Since the apparatus may be used intraorally, the tubular member (104) may be sterilizable and biocompatible to prevent infections or allergic reactions.

[0116] To enhance functionality, certain optional features can be incorporated. These include internal antirotation ridges, which help keep the loop in a fixed angular position once inserted; colour-coded Laser markings (108) for easy depth identification and accurate placement; and slot windows that allow clinicians to visually inspect whether the loop's notch or mark is properly aligned inside the tube. Additionally, the tubular member (104) can be manufactured with an angled orientation (e.g., a 10° mesial or distal tilt) to better conform to a patient’s unique dental anatomy and ensure optimal appliance positioning.

[0117] In one of the exemplary embodiments of the present invention, a tubular member (104) is affixed to the buccal side of an orthodontic molar band, serving as a receptacle for an adjustable U-shaped loop. The loop is preformed with strategically placed notches that allow for positional locking within the tubular member (104). The distal end of the loop features a distal shoe extension, a subgingivally extending metallic paddle that serves as an eruption guide. This configuration is especially useful in pediatric cases where premature loss of a second deciduous molar risks misalignment of the erupting first permanent molar. The distal shoe helps direct the molar's path, maintaining arch integrity and spacing.

[0118] In another exemplary embodiment of the present invention, adult orthodontic or prosthodontic applications, particularly for preserving space in preparation for dental implants The tubular member (104) in this case receives an adjustable loop (106) that is pre-marked with laser depth indicators, for example at 10 mm, to allow for precise insertion depth based on individual clinical requirements. The distal end of the loop is a straight segment, designed to maintain a consistent linear space between adjacent teeth. This setup ensures the preservation of the implant site without any complex eruption guidance, making it ideal for adult dentition where growth considerations are minimal.

[0119] In another exemplary embodiment of the present invention, the tubular member (104) is equipped with an internal detent ball-spring locking mechanism. The adjustable loop (106) can be inserted to various depths, and the detent system provides tactile feedback or an audible “click” when the loop locks into one of several preset positions. This feature allows for repeated adjustments of the loop over time without removing the entire appliance. It is particularly suitable for cases where progressive space maintenance or reduction is desired, such as during staged orthodontic movement or delayed eruption management.

[0120] In another exemplary embodiment of the present invention, the apparatus is designed for modular flexibility, allowing the orthodontist to replace or swap loop wires without removing the band or the tubular member (104). The tubular member (104) includes a threaded locking cap or other mechanical securing mechanism, making it possible to remove one loop and insert another based on treatment progression. This embodiment is well-suited for multi-phase treatment plans, such as serial extraction cases, where space needs change over time and a fixed loop configuration may not suffice.

[0121] In another exemplary embodiment of the present invention, the adjustable loop (106) includes Laser markings (108) that correspond to a digital calibration chart. The orthodontist refers to a digital guide sheet or software-based planning interface to determine the correct insertion depth based on the patient's digital model or cephalometric data. This ensures standardized, data-driven space maintenance protocols that are especially beneficial for large clinics or group practices aiming for consistent outcomes across multiple practitioners and patients. This embodiment supports greater precision and inter-clinician uniformity in appliance placement.

[0122] Fig. 2A - 2C illustrate a modular and adjustable orthodontic space maintainer (100) apparatus designed to preserve inter-dental space within a dental arch, particularly in pediatric or transitional dentition phases. The apparatus is composed of three primary components: an orthodontic band (102), a tubular member (104), and an adjustable loop (106) with notches and / or Laser markings (108).

[0123] The orthodontic band (102) serves as the foundational anchorage unit and is configured to be circumferentially secured around a suitable dental abutment, typically a primary or permanent molar. Its contoured inner surface (112) is anatomically shaped to conform to the tooth’s morphology and ensure optimal retention, while also accommodating variable angulations within the dental arch, such as mesial or distal tipping. The outer surface (110) of the band provides a mounting base for the subsequent assembly components

[0124] Affixed firmly to the outer surface (110) of the band is a tubular member (104). This tubular member (104) acts as a reception port and insertion channel for the adjustable loop (106). It is aligned in a direction generally extending outward (buccally or lingually) from the band and may include internal features such as grooves, anti-rotation ridges, or detent mechanisms to facilitate precise engagement and locking of the inserted loop. Depending on the design, the tubular member (104) may also be oriented at a specific anatomical angle (e g., 10° mesial tilt) to better accommodate the patient’s arch form and treatment objectives.

[0125] The adjustable loop (106) is a preformed, generally U-shaped wire structure with a proximal end and a distal end. The proximal end is designed for insertion into the tubular member (104) and is configured with either mechanical notches, detent features, or a threaded segment for secure positional locking. These features allow the clinician to adjust the loop’s insertion depth incrementally and establish a fixed spatial relationship once the desired position is achieved. In some embodiments, Laser markings (108) on theproximal end aid in visual confirmation of the insertion depth, supporting standardized and reproducible placements.

[0126] The distal end of the loop extends into the edentulous space or region requiring preservation, ensuring that neighboring teeth do not drift or collapse into the gap. Depending on the clinical need, the distal end may be configured as a straight segment for passive spacing, a curved segment to follow arch anatomy, or a distal shoe extension for guiding erupting permanent teeth.

[0127] In operation, the orthodontist first selects a suitable band and secures it to the patient’s tooth. The loop is then inserted into the tubular member (104) until the desired depth is reached, as indicated by notches or Laser markings (108). Once in position, the loop is locked mechanically, either via a detent, friction fit, or threaded closure, ensuring stable engagement throughout the treatment period. This design enables precision control, easy chairside adjustment, and modularity, all while maintaining biocompatibility and structural integrity in the oral environment.

[0128] In an alternate embodiment of the present disclosure, the present disclosure details a precision- configured orthodontic space maintainer (100) apparatus designed for adjustable and secure preservation of inter-dental spacing within a dental arch. The apparatus includes three key structural elements: an orthodontic band (102), a tubular reception port, and a U-shaped adjustable loop (106).

[0129] The orthodontic band (102) is the primary anchoring component and is designed to be circumferentially secured around a dental abutment, typically a molar. It features a contoured inner surface (112) that closely conforms to the morphology of the abutment tooth, ensuring a snug and stable fit. This tailored contour helps accommodate variations in tooth anatomy and arch form, thereby enhancing mechanical retention and long-term clinical reliability. The outer surface (110) of the band provides a rigid platform for affixing auxiliary components.

[0130] Attached to the outer surface (110) of the band is a tubular member (104), which functions as a reception port for insertion of the adjustable loop (106). The tubular member (104) is oriented to project outward from the band, typically along a buccal or lingual trajectory, and is fixed securely to ensure that it remains in stable alignment under functional loads. This tube may be configured with internal features such as grooves, ridges, or friction elements to facilitate mechanical engagement of the inserted loop.

[0131] The adjustable loop (106) is a U-shaped wire element designed with a proximal end and a distal end. The loop’s two parallel arms extend from the proximal end and terminate in a bent portion at the distal end, which may be shaped to span the edentulous region being preserved. Notably, the parallel arms include preformed notches and / or Laser markings (108), which are spaced at regular intervals along their length. These serve as reference and locking features to aid in precise length adjustment of the loop.

[0132] During clinical use, the orthodontist inserts the proximal end of the adjustable loop (106) into the tubular member (104) until a desired notch or laser marking aligns with the locking mechanism or engagement feature within the tube. This selected notch or mark then mechanically secures the loop in place,thereby establishing a fixed spatial relationship between the banded tooth and the distal portion of the loop. The resulting configuration creates a defined and controlled inter-dental spacing, preserving the gap for future permanent tooth eruption or prosthetic placement.

[0133] This embodiment offers incremental adjustability, visual guidance, and mechanical locking in a compact and clinically efficient design. The integration of Laser markings (108) and notches allows for rapid chairside customization, while the secure engagement ensures stability during mastication and normal oral function. This makes the system particularly well-suited for pediatric dentistry, transitional dentition stages, and cases requiring interim space management.

[0134] In another alternate embodiment of the present disclosure, the present disclosure pertains to a precisely engineered orthodontic space maintainer (100) apparatus intended for preserving inter-dental spacing within the dental arch during developmental or restorative stages. It integrates a mechanical interface between a banded dental abutment and an adjustable U-shaped loop, allowing controlled adjustment and secure fixation of the space-maintaining element.

[0135] At the core of this apparatus is the orthodontic band (102), which is designed to be circumferentially secured around a dental abutment, such as a molar. The band features a contoured inner surface (112) that is adapted to match the morphology of the target tooth, ensuring tight conformity and stable retention. Moreover, the band is capable of accommodating variable angulations within the dental arch, which is critical in addressing the diverse anatomical presentations encountered in clinical practice. The outer surface (110) of the band serves as a stable base for the attachment of auxiliary structures.

[0136] Affixed to the outer surface (110) of this orthodontic band (102) is a tubular member (104), which functions as a reception port. This member is oriented to extend away from the outer surface (110) of the band, typically in the buccal or lingual direction, and serves as the point of entry for the adjustable loop (106). The tubular member (104) is structurally rigid and securely bonded to the band, providing a reliable channel for insertion and mechanical engagement of the loop's proximal end.

[0137] The adjustable loop (106) includes a U-shaped configuration with a proximal end designed for insertion into the tubular member (104) and a distal end formed by a bent segment that bridges the edentulous space. The loop features two parallel arms that extend longitudinally from the proximal end toward the distal bend. Integrated along these parallel arms are pre-formed notches and / or Laser markings (108), which are precisely spaced to enable accurate depth adjustment during insertion.

[0138] During use, the orthodontist selects a specific notch or laser marking based on the desired inter-dental distance and inserts the proximal end of the loop into the tubular member (104) until the selected notch or marking aligns with the locking mechanism inside the tube. This mechanical engagement secures the loop in place, establishing a fixed spatial relationship between the banded abutment and the loop’s distal segment. The result is a stable and customized defined inter-dental spacing, suitable for preserving room for erupting permanent teeth or for preparing sites for future implants or prosthetics.

[0139] This embodiment allows for repeatable and highly accurate adjustments in chairside settings, providing orthodontists with both visual indicators and mechanical stops to ensure consistency. The combined use of Laser markings (108) and notches ensures both ease of insertion and durability of positioning, contributing to the long-term performance of the appliance. This design is especially beneficial in dynamic treatment phases such as mixed dentition or serial extraction cases, where flexibility and predictability are essential.

[0140] Fig. 3 of the present disclosure discloses a method (300) for preparing an orthodontic space maintainer (100). The method includes a first step of circumferentially securing (302) an orthodontic band (102) to a dental abutment. The orthodontic band (102) is selected and contoured to feature a morphology-adapted inner surface (112) that conforms precisely to the shape and angulation of the selected abutment tooth. This inner surface (112) allows the band to closely match various anatomical contours found in different areas of the dental arch, thereby ensuring secure fitment and mechanical stability around the abutment.

[0141] The method further includes a step of affixing (304) the tubular member (104) to the outer surface (110) of the orthodontic band (102). This tubular member (104) is oriented such that it extends in a direction opposite to the inner surface (112) that engages the tooth. The tubular member (104) functions as a reception port and is fixed in position to provide a stable insertion path for the adjustable loop (106) to be introduced later in the process.

[0142] The method includes a further step of providing (306) an adjustable loop (106) which includes a proximal end and a distal end. This loop is the element responsible for maintaining the desired inter-dental spacing once the assembly is complete. The proximal end of the loop is configured for engagement with the tubular member (104), while the distal end will extend toward the gap to be preserved.

[0143] The method includes a further step of inserting (308) the proximal end of the adjustable loop (106) into the tubular member (104) The orientation and dimensions of the loop are aligned with the internal bore of the tubular member (104) to ensure a smooth and secure insertion that maintains axial alignment.

[0144] Furthermore, the method includes a final step of mechanically securing (310) the adjustable loop (106) within the tubular member (104). This step establishes a fixed spatial relationship between the orthodontic band (102) and the adjustable loop (106), preventing unintended movement and ensuring that the loop maintains the desired spacing in the dental arch over time. The securement is essential to ensure stability of the device under physiological forces such as chewing or orthodontic movement.

[0145] Fig. 4 of the present disclosure discloses another method (400) for preparing an orthodontic space maintainer (100). The method includes a step of circumferentially securing (402) an orthodontic band (102) to a selected dental abutment. The orthodontic band (102) is carefully shaped to include an outer surface (110) and a contoured inner surface (112). The inner surface (112) is specifically adapted to match the morphology of the abutment tooth, ensuring a snug, conforming fit. This contoured interface provides mechanical stability by aligning with the unique anatomical features and curvature of the tooth structure.

[0146] Further, the method includes a step of affixing (404) the tubular member (104) to the outer surface (110) of the orthodontic band (102). The tubular member (104) is positioned so that it extends in a direction opposite to the outer surface (110), projecting outwardly away from the tooth surface. This tubular member (104) is configured to function as a reception port, designed to receive and retain the adjustable loop (106) during assembly, while maintaining alignment and positional stability.

[0147] Further, the method includes a step of providing (406) an adjustable loop (106) that includes a proximal end and a distal end. The loop is U-shaped, with two parallel arms extending from the proximal end and connected by a bent portion at the distal end. Importantly, the parallel arms of the loop are prefabricated with two or more notches and / or Laser markings (108), which are used for length adjustment. These markings serve as reference and locking points for positioning the loop during insertion.

[0148] Further, the method includes a step of inserting (408) the proximal end of the adjustable loop (106) into the tubular member (104). The insertion is carried out such that the loop enters the tubular member (104) with its arms aligned and its markings or notches visible and positioned relative to the outer edges of the tube, facilitating accurate depth control and orientation.

[0149] At last, the method includes a step of mechanically securing (410) the adjustable loop (106) within the tubular member (104). This is accomplished by engaging a selected notch and / or laser marking located on both parallel arms of the loop. The engagement creates a stable interlock between the loop and the tubular member (104), ensuring that the loop is fixed at the intended depth. As a result, this securement step establishes a fixed spatial relationship between the orthodontic band (102) and the loop, while also creating a defined inter-dental spacing necessary for orthodontic or pediatric dental treatment.

[0150] Fig. 5 of the present disclosure discloses another method (500) for preparing an orthodontic space maintainer (100). The method includes a step of circumferential securing (502) of an orthodontic band (102) to a dental abutment. The orthodontic band (102) is designed with an outer surface (110) and a contoured inner surface (112). The inner surface (112) is specifically shaped to adapt to the morphology of the tooth and is capable of conforming to variable angulations within the dental arch. This anatomical adaptability ensures a snug fit around different types of abutment teeth, providing both comfort and mechanical stability once placed intraorally.

[0151] Further, the method includes a step of affixing (504) a tubular member (104) to the outer surface (110) of the orthodontic band (102). The tubular member (104) is attached in such a way that it extends in a direction opposite to the outer surface (110) of the orthodontic band (102), typically projecting buccally or lingually. This tubular member (104) is configured as a reception port, intended to house the insertion and engagement of an adjustable loop (106) during the assembly of the appliance.

[0152] Further, the method includes a step of providing (506) an adjustable loop (106) that has a proximal end and a distal end. The loop is U-shaped, with two parallel arms extending from the proximal end and a bent portion located at the distal end to form the overall U-configuration. Importantly, the parallel arms arefabricated with pre-formed two or more notches and / or Laser markings (108). These markings function as reference and locking features to allow for length adjustment during clinical fitting and enable secure mechanical engagement within the tubular member (104).

[0153] Further, the method includes a step of inserting (508) the proximal end of the adjustable loop (106) into the tubular member (104). During insertion, the loop is guided into the reception port such that the parallel arms align with the internal geometry of the tubular member (104), and the notches or Laser markings (108) become accessible for positional adjustment and locking.

[0154] At last, the method includes a step of mechanically securing (510) within the tubular member (104). This is achieved by engaging a selected notch and / or laser marking located on both parallel arms of the loop. The engagement ensures that the loop is fixed at a specific insertion depth and prevents any subsequent movement or loosening. Through this securement, the method establishes a fixed spatial relationship between the orthodontic band (102) and the loop, and also creates a defined inter-dental spacing, which is critical for maintaining the necessary space for permanent tooth eruption or prosthetic planning within the dental arch.

[0155] In one of the exemplary embodiment of the present invention, the present disclosure discloses a method for preserving inter-dental spacing within a dental arch. The method includes a step of applying the orthodontic space maintainer (100) to the dental abutment. The applying step involves positioning and securing the orthodontic space maintainer (100) onto a selected dental abutment. This begins with selecting a suitable tooth, typically a molar or premolar, as the anchorage site. The orthodontic band (102) of the space maintainer (100) is then circumferentially fitted around the tooth, ensuring that its contoured inner surface (112) conforms to the tooth morphology and accommodates variable angulations in the dental arch. Once properly positioned, the band is fixed in place, typically using dental cement, to provide a stable foundation for the rest of the appliance to function effectively in preserving inter-dental spacing.

Claims

AMENDED CLAIMS received by the International Bureau on 16 April 2026 (16.04.2026)1. An orthodontic space maintainer (100) apparatus for preserving inter-dental spacing within a dental arch, comprising: an orthodontic band (102) configured to be circumferentially secured to a dental abutment, the orthodontic band (102) featuring an outer surface (110) and a contoured inner surface (112) anatomically shaped to conform to the tooth’s morphology and conforming to variable angulations within the dental arch; a tubular member (104) securely affixed to the outer surface (110) of the orthodontic band (102) and extending in a direction opposite to the outer surface (110) of the orthodontic band (102), and configured as a reception port; and an adjustable loop (106) with a proximal end and a distal end, wherein the tubular member (104) receives the proximal end of the adjustable loop (106), and the proximal end is configured for mechanically securing the adjustable loop (106) within the tubular member (104) to establish a fixed spatial relationship.2 The orthodontic space maintainer (100) apparatus as claimed in claim 1, wherein the adjustable loop (106) is U-shaped, having two parallel arms extending from the proximal end and a bent portion at the distal end.3 The orthodontic space maintainer (100) apparatus as claimed in claim 2, wherein the parallel arms include pre-formed two or more notches and / or markings to establish the fixed spatial relationship and for length adjustment.4 The orthodontic space maintainer (100) apparatus as claimed in claim 3, wherein the two or more notches and / or markings are configured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable loop (106) through clear reference points, thereby establishing the fixed spatial relationship between the adjustable loop (106) and the tubular member (104).5 The orthodontic space maintainer (100) apparatus as claimed in claim 4, wherein the fixed spatial relationship between the adjustable loop (106) and the tubular member (104) is done by crimping the adjustable loop (106) within the tubular member (104) to define the inter-dental spacing.6 The orthodontic space maintainer (100) apparatus as claimed in claim 1, wherein the orthodontic band (102) is obtained from biocompatible stainless steel and / or a medical-grade polymer.

7. The orthodontic space maintainer (100) apparatus as claimed in claim 1, wherein the orthodontic band (102) is optionally coated with an antimicrobial coating.8 The orthodontic space maintainer (100) apparatus as claimed in claim 1, wherein the tubular member (104) is made of a corrosion-resistant and abrasion-resistant material.9 The orthodontic space maintainer (100) apparatus as claimed in claim 1, wherein the orthodontic band (102), the tubular member (104), and the adjustable loop (106) are coated with an aesthetic material selected from medical-grade polymer, polymer-ceramic composite, and / or tooth-coloured ceramic.10 A method (300) for preparing an orthodontic space maintainer (100), the method comprising:circumferentially securing (302) an orthodontic band (102) to a dental abutment, the orthodontic band (102) featuring an outer surface (110) and a contoured inner surface (112) anatomically shaped to conform to the tooth’s morphology and conforming to variable angulations within the dental arch; affixing (304) a tubular member (104) to the outer surface (110) of the orthodontic band (102) and extending in a direction opposite to the outer surface (110) of the orthodontic band (102), and configured as a reception port; providing (306) an adjustable loop (106) with a proximal end and a distal end; nserting (308) the proximal end of the adjustable loop (106) into the tubular member (104); and echanically securing (310) the adjustable loop (106) within the tubular member (104) to establish a fixed patial relationship.

1. The method (300) as claimed in claim 10, wherein the adjustable loop (106) is U-shaped, having two arallel arms extending from the proximal end and a bent portion at the distal end.

2. The method (300) as claimed in claim 11, wherein the parallel arms include pre-formed two or more otches and / or markings to establish the fixed spatial relationship and for length adjustment.

3. The method (300) as claimed in claim 12, wherein the two or more notches and / or markings are onfigured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable oop (106) through clear reference points, thereby establishing the fixed spatial relationship between the djustable loop (106) and the tubular member (104).

4. The method (300) as claimed in claim 13, wherein the fixed spatial relationship between the djustable loop (106) and the tubular member (104) is done by crimping the adjustable loop (106) within theubular member (104) to define the inter-dental spacing.

5. The method (300) as claimed in claim 10, wherein the orthodontic band (102) is obtained from iocompatible stainless steel and / or a medical-grade polymer.

6. The method (300) as claimed in claim 10, wherein the orthodontic band (102) is optionally coated ith an antimicrobial coating.

7. The method (300) as claimed in claim 10, wherein the tubular member (104) is made of a corrosionesistant and abrasion-resistant material.

8. An orthodontic space maintainer (100) apparatus for preserving inter-dental spacing within a dental rch, comprising: n orthodontic band (102) configured to be circumferentially secured to a dental abutment, the orthodontic and (102) featuring an outer surface (110) and a contoured inner surface (112) adapted to morphology; tubular member (104) securely affixed to the outer surface (110) of the orthodontic band (102) and xtending in a direction opposite to the outer surface (110) of the orthodontic band (102), and configured as reception port; andan adjustable loop (106) with a proximal end and a distal end, the adjustable loop (106) being U-shaped and having two parallel arms extending from the proximal end and a bent portion at the distal end, wherein the parallel arms include pre-formed two or more notches and / or markings for length adjustment, and the tubular member (104) receives the proximal end of the adjustable loop (106) for mechanical securement by engaging a selected notch and / or marking, thereby establishing a fixed spatial relationship and a defined inter-dental spacing.

19. The orthodontic space maintainer (100) apparatus as claimed in claim 18, wherein the contoured inner urface (112) of the orthodontic band (102) is further adapted to conform to variable angulations within the ental arch.

0. The orthodontic space maintainer (100) apparatus as claimed in claim 18, wherein the two or more otches and / or markings are configured as standardized indicators to enable the dentist to verify and adjusthe length of the adjustable loop (106) through clear reference points, thereby establishing the fixed spatial elationship between the adjustable loop (106) and the tubular member (104).

1. The orthodontic space maintainer (100) apparatus as claimed in claim 20, wherein the fixed spatial elationship between the adjustable loop (106) and the tubular member (104) is done by crimping the djustable loop (106) within the tubular member (104) to define the inter-dental spacing.

2. The orthodontic space maintainer (100) apparatus as claimed in claim 18, wherein the orthodontic and (102) is obtained from biocompatible stainless steel and / or a medical-grade polymer.

3. The orthodontic space maintainer (100) apparatus as claimed in claim 18, wherein the orthodontic and (102) is optionally coated with an antimicrobial coating.

4. The orthodontic space maintainer (100) apparatus as claimed in claim 18, wherein the tubular member 104) is made of a corrosion-resistant and abrasion-resistant material.

5. A method (400) for preparing an orthodontic space maintainer (100), the method comprising: ircumferentially securing (402) an orthodontic band (102) to a dental abutment, the orthodontic band (102) eaturing an outer surface (110) and a contoured inner surface (112) adapted to morphology; ffixing (404) a tubular member (104) to the outer surface (110) of the orthodontic band (102) and extendingn a direction opposite to the outer surface (110) of the orthodontic band (102), and configured as a reception ort; roviding (406) an adjustable loop (106) with a proximal end and a distal end, the adjustable loop (106) being -shaped and having two parallel arms extending from the proximal end and a bent portion at the distal end, herein the parallel arms include pre-formed two or more notches and / or markings for length adjustment;nserting (408) the proximal end of the adjustable loop (106) into the tubular member (104); and echanically securing (410) the adjustable loop (106) within the tubular member (104) by engaging a elected notch and / or marking on both the parallel arms, thereby establishing a fixed spatial relationship and defined inter-dental spacing.

26. The method (400) as claimed in claim 25, wherein the contoured inner surface (112) of the orthodontic band (102) is further adapted to conform to variable angulations within the dental arch.

27. The method (400) as claimed in claim 25, wherein the two or more notches and / or markings are configured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable loop (106) through clear reference points, thereby establishing the fixed spatial relationship between the adjustable loop (106) and the tubular member (104).

28. The method (400) as claimed in claim 27, wherein the fixed spatial relationship between the djustable loop (106) and the tubular member (104) is done by crimping the adjustable loop (106) within theubular member (104) to define the inter-dental spacing.

9. The method (400) as claimed in claim 25, wherein the orthodontic band (102) is obtained from iocompatible stainless steel and / or a medical-grade polymer.

0. The method (400) as claimed in claim 25, wherein the orthodontic band (102) is optionally coated ith an antimicrobial coating.

1. The method (400) as claimed in claim 25, wherein the tubular member (104) is made of a corrosionesistant and abrasion-resistant material.

2. An orthodontic space maintainer (100) apparatus for preserving inter-dental spacing within a dental rch, comprising: n orthodontic band (102) configured to be circumferentially secured to a dental abutment, the orthodontic and (102) featuring an outer surface (110) and a contoured inner surface (112) adapted to morphology and onforming to variable angulations within the dental arch; tubular member (104) securely affixed to the outer surface (110) of the orthodontic band (102) and xtending in a direction opposite to the outer surface (110) of the orthodontic band (102), and configured as reception port; and n adjustable loop (106) with a proximal end and a distal end, the adjustable loop (106) being U-shaped and aving two parallel arms extending from the proximal end and a bent portion at the distal end, wherein the arallel arms include pre-formed two or more notches and / or markings for length adjustment, and the tubular ember (104) receives the proximal end of the adjustable loop (106) for mechanical securement by engaging selected notch and / or marking, thereby establishing a fixed spatial relationship and a defined inter-dental pacing.

3. The orthodontic space maintainer (100) apparatus as claimed in claim 32, wherein the two or more otches and / or markings are configured as standardized indicators to enable the dentist to verify and adjusthe length of the adjustable loop (106) through clear reference points, thereby establishing the fixed spatial elationship between the adjustable loop (106) and the tubular member (104).

34. The orthodontic space maintainer (100) apparatus as claimed in claim 33, wherein the fixed spatial relationship between the adjustable loop (106) and the tubular member (104) is done by crimping the adjustable loop (106) within the tubular member (104) to define the inter-dental spacing.

35. A method (500) for preparing an orthodontic space maintainer (100), the method comprising: circumferentially securing (502) an orthodontic band (102) to a dental abutment, the orthodontic band (102) featuring an outer surface (110) and a contoured inner surface (112) adapted to morphology and conforming to variable angulations within the dental arch; ffixing (504) a tubular member (104) to the outer surface (110) of the orthodontic band (102) and extending n a direction opposite to the outer surface (110) of the orthodontic band (102), and configured as a reception ort; roviding (506) an adjustable loop (106) with a proximal end and a distal end, the adjustable loop (106) being -shaped and having two parallel arms extending from the proximal end and a bent portion at the distal end, herein the parallel arms include pre-formed two or more notches and / or markings for length adjustment; nserting (508) the proximal end of the adjustable loop (106) into the tubular member (104); and echanically securing (510) the adjustable loop (106) within the tubular member (104) by engaging a elected notch and / or marking on both the parallel arms, thereby establishing a fixed spatial relationship and defined inter-dental spacing.

6. The method (500) as claimed in claim 35, wherein the two or more notches and / or markings are onfigured as standardized indicators to enable the dentist to verify and adjust the length of the adjustable oop (106) through clear reference points, thereby establishing the fixed spatial relationship between the djustable loop (106) and the tubular member (104).

7. The method (500) as claimed in claim 36, wherein the fixed spatial relationship between the djustable loop (106) and the tubular member (104) is done by crimping the adjustable loop (106) within theubular member (104) to define the inter-dental spacing.

8. A method for preserving inter-dental spacing within a dental arch, the method comprising: pplying the orthodontic space maintainer (100) claimed in any of the preceding claims to a dental abutment.

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