Bonding titanium metal surgical guide

Abstract

The utility model discloses a kind of bonding titanium metal surgical guide plate, including guide plate body, the guide plate body includes guide plate retention part and guide part. Among them, the guide plate retention part inner surface is matched with tooth surface shape, the guide plate retention part is used to cover 1-2 teeth at implant site. In the utility model, guide plate body is made by 3D printer printing of medical titanium alloy, its biocompatibility is excellent, can adapt to human physiological environment, guarantee long-term clinical safety;And its high-strength characteristic is superior to traditional resin guide plate, can reduce volume while meeting structural strength, can reduce oral cavity space occupancy, improve wearing comfort, reduce foreign body sensation, while it can avoid the problem that resin guide plate is easily broken, prolong service life;In addition, 0.01mm gap is reserved between retention part and tooth, to facilitate subsequent coating adhesive, even filling by adhesive enhances installation stability.

Description

Technical Field

[0001] This utility model mainly relates to the field of oral and dental orthodontic technology, specifically an adhesive titanium metal surgical guide. Background Technology

[0002] Orthodontics is a specialized branch of dentistry that primarily studies, diagnoses, and corrects misalignments or inconsistencies in teeth, jawbones, and facial structures, aiming to improve function, aesthetics, and oral health. Mini-implant anchorage is an anchorage device used in orthodontic treatment to control tooth movement. Due to its advantages such as small size, flexible placement, simple and minimally invasive implantation, and low cost, it gained popularity among orthodontists and has been widely used in clinical practice since its introduction. To achieve precise implantation of mini-implants and improve their success rate and stability, researchers began to study the fabrication of mini-implant implantation guides. The fabrication process typically involves designing the three-dimensional shape of the guide based on the patient's CBCT images, intraoral scan images, and simulated mini-implant implantation data, and then printing the guide using a 3D printer.

[0003] However, based on current research both domestically and internationally, the retention method of three-dimensional surgical guides is tooth-supported, and they are all made of resin. When designing the guide, its retention portion must cover at least three tooth positions to ensure stable retention of the micro-implant after placement in the mouth. This results in a relatively large guide volume. For zygomatic alveolar ridge micro-implants, the placement position is posterior, making it difficult to retract the implant from the corner of the mouth. An excessively large guide volume is detrimental to the implantation procedure and also reduces patient comfort. Furthermore, resin is brittle, and resin guides are prone to deformation, damage, or even breakage during wear and implantation, rendering them unusable. Utility Model Content

[0004] This utility model provides a significantly different solution to the problem of overly simplistic existing technical solutions. It primarily offers an adhesive titanium surgical guide to address the aforementioned issues. Current three-dimensional surgical guides, which rely on tooth-supported retention and are made of resin, require a retention section covering three or more teeth for stability, resulting in a large guide size. Furthermore, for zygomatic alveolar ridge micro-implants, excessive size hinders implantation, reduces patient comfort, and the brittleness of resin makes the guide prone to deformation, damage, or even breakage during insertion and implantation, rendering it unusable.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: An adhesive titanium surgical guide includes a guide body, which includes a guide retention portion and a guiding portion.

[0006] The inner surface of the guide plate retention part matches the shape of the tooth surface. The guide plate retention part is used to cover 1-2 teeth at the implantation site, and a 0.01mm gap is reserved between the inner surface of the guide plate retention part and the outer surface of the tooth for applying adhesive.

[0007] The guide portion is used to guide the implantation of the micro-implant, and it includes an outer ring and an inner ring.

[0008] More preferably, the guide plate body is made of medical-grade titanium alloy material and is precisely manufactured using 3D printing technology, wherein the guide plate fixing part and the outer ring of the guiding part are designed as an integral structure.

[0009] More preferably, the inner ring of the guide portion is 12mm long and its inner diameter is 4.5mm, which matches the end diameter of the selected micro-implant implant handle.

[0010] More preferably, the inner ring of the guide portion has symmetrically distributed rotating shafts on its sidewall, and the outer ring of the guide portion has two corresponding slides on its sidewall. The slides are L-shaped and one end of the slides is open. The rotating shafts are slidably installed inside the slides.

[0011] More preferably, the guide plate retaining part is provided with a plurality of adhesive overflow holes for discharging excess adhesive during the bonding process.

[0012] More preferably, the adhesive is a glass ionomer adhesive.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This surgical guide is made of medical-grade titanium alloy using a precision printer (BLT-S200). Medical-grade titanium alloy possesses excellent biocompatibility, adapting well to the human body's physiological environment and reducing the risk of rejection reactions between the guide and oral tissues, thus ensuring safety for long-term clinical application. Furthermore, its high strength compared to traditional resin guides allows for a smaller guide volume while maintaining overall structural strength to meet surgical requirements. This enables the inner surface of the guide's retention section to match the shape of the outer surface of 1-2 teeth at the implantation site, reducing the space occupied by the guide in the oral cavity, thereby improving patient comfort and reducing foreign body sensation. It also avoids the problems of easy breakage and fracture associated with traditional resin guides, extending the guide's lifespan. In addition, a reasonable 0.01mm gap is left between the guide's retention section and the outer surface of the tooth, providing sufficient operating space for subsequent adhesive application. The even filling of the adhesive enhances the stability of the guide after installation.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the initial vertical bone surface implantation structure of the micro-implant of this utility model; Figure 3 This is a schematic diagram of the final implantation structure of the micro-implant of this utility model; Figure 4 This is a schematic diagram of the inner ring and rotating shaft structure of the guide section of this utility model.

[0016] Numbering on the map: 1. Teeth; 2. Guide plate retaining part; 3. Adhesive overflow hole; 4. Outer ring of guide part; 5. Inner ring of guide part; 6. Rotating shaft; 7. Slide. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Please refer to the appendix carefully. Figures 1-4 An adhesive titanium surgical guide plate includes a guide plate body, which includes a guide plate retention part 2 and a guiding part.

[0020] The inner surface of the guide plate retention part 2 matches the shape of the tooth 1 surface. The guide plate retention part 2 is used to cover 1-2 teeth 1 at the implantation site, and a 0.01mm gap is reserved between the inner surface of the guide plate retention part 2 and the outer surface of the tooth 1 for applying adhesive.

[0021] The guide section is used to guide the implantation of micro-implants, and it includes an outer guide ring 4 and an inner guide ring 5.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the guide plate body is made of medical-grade titanium alloy and printed by a BLT-S200 printer. The guide plate retention part 2 and the outer ring 4 of the guiding part are integrated into one structure. Titanium alloy has excellent biocompatibility, which can better adapt to the human physiological environment and reduce the risk of rejection reaction between the guide plate and human tissue. At the same time, titanium alloy has high strength. Compared with traditional resin guide plates, the high strength of titanium alloy allows the guide plate to be reduced in size while ensuring structural strength, reducing the space occupied by the guide plate in the human oral cavity, improving the patient's comfort when wearing it, and reducing the feeling of foreign body.

[0023] In this embodiment, as Figure 4 As shown, the inner ring 5 of the guide portion is 12mm long. This length ensures that the inner ring 5 fully wraps around the implant handle during the micro-implant implantation process, enabling the guide plate to guide the micro-implant implantation throughout the entire process. The inner diameter of the inner ring 5 is 4.5mm, which precisely matches the diameter of the end of the selected micro-implant implant handle. This ensures a tight fit between the implant handle and the inner ring, preventing radial displacement of the implant handle during implantation. This provides a basic guarantee for the accuracy of the micro-implant implantation direction and reduces surgical errors caused by size mismatch.

[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the inner ring 5 of the guide is provided with symmetrically distributed rotating shafts 6 on its side wall, and the outer ring 4 of the guide is provided with two corresponding slides 7 on its side wall. The slides 7 are L-shaped and one end of the slides 7 is open to facilitate the assembly and disassembly of the inner ring 5 and the outer ring 4 of the guide. The rotating shafts 6 are slidably installed inside the slides 7. The rotating shafts 6 are inserted into the outer ring 4 of the guide through the open end of the slides 7. The sliding of the rotating shafts 6 in the slides 7 can realize the movement of the inner ring 5 of the guide within the outer ring 4 of the guide, thereby realizing the angle change of the guide track during the implantation of the zygomatic alveolar ridge micro-implant.

[0025] In this embodiment, as Figure 1 As shown, the guide plate retaining part 2 is provided with multiple adhesive overflow holes 3, which are used to discharge excess adhesive during the bonding process. This allows excess adhesive to be discharged in a timely manner during the bonding process between the guide plate retaining part 2 and the tooth 1, preventing excess adhesive from accumulating between the guide plate retaining part 2 and the tooth 1 and forming gaps. This prevents the bonding from being loose due to gaps, thereby ensuring a stable connection between the guide plate retaining part 2 and the tooth 1 and reducing the risk of the guide plate becoming loose or shifting during use.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the adhesive used is glass ionomer cement. Glass ionomer cement has high biocompatibility with human oral tissues and does not release irritating substances, reducing irritation to the gums, mucosa, and other soft tissues during bonding and long-term wear. Furthermore, after curing, glass ionomer cement exhibits excellent water resistance and sealing properties. In addition to ensuring a stable bond between the guide plate and the abutment tooth, glass ionomer cement continuously releases fluoride ions. These fluoride ions can penetrate into the tooth structure, enhancing the enamel's resistance to acid erosion and reducing the risk of tooth decay caused by bacterial growth or acid erosion in the bonding area.

[0027] The specific operating procedure of this utility is as follows: First, collect the patient's CBCT images and digital intraoral scan images, and import them into GeomagicWrap2021 software for registration and integration to obtain a three-dimensional integrated dental model containing soft and hard tissues, and fill the undercut areas.

[0028] Next, a cylindrical micro-implant with a diameter of 1.4 mm and a length of 8 mm was selected in the Mimics software to simulate implantation at the zygomatic alveolar ridge region between the first and second maxillary molars. During zygomatic alveolar ridge micro-implant implantation, it was first inserted perpendicularly to the bone surface by 1 mm, and then the angle was adjusted towards the occlusal plane. Two micro-implant simulators were placed during the simulated implantation, representing the position of the micro-implant when inserted perpendicularly to the bone surface by 1 mm and the final implantation position and direction. Then, a titanium alloy guide plate body was printed using a BLT-S200 printer. The guide plate body includes a guide plate retention part 2 and a guiding part. The inner surface of the guide plate retention part 2 precisely matches the shape of the outer surface of 1-2 teeth at the implantation site, with a 0.01 mm gap reserved.

[0029] Before the operation, the guide plate is strictly disinfected and then placed in the patient's mouth to verify its fit. It is confirmed that the retention part 2 of the guide plate accurately covers the target tooth 1 and the guiding part corresponds to the implantation site. If there is any deviation, it is adjusted in time until the surgical requirements are met.

[0030] Next, apply a layer of glass ionomer adhesive evenly to the inner surface of the guide plate retention part 2, and then put the guide plate back into the oral cavity so that the guide plate retention part 2 completely fits the surface of the target tooth 1. At this time, the multiple adhesive overflow holes 3 on the guide plate retention part 2 will drain the excess adhesive in time to avoid the accumulation of gaps between the guide plate and the tooth 1. After cleaning the excess adhesive, wait for the glass ionomer adhesive to solidify naturally.

[0031] Next, the inner ring 5 of the guide is inserted into the open end of the L-shaped slide 7 on the side wall of the outer ring 4 of the guide through the symmetrical rotating shaft 6 on its side wall, so that the rotating shaft 6 is slidably installed in the slide 7. Then, according to the preset implantation angle of the zygomatic alveolar ridge micro-implant, the rotating shaft 6 is pushed to slide along the L-shaped slide 7, which drives the inner ring 5 of the guide to move within the outer ring 4 of the guide until the angle of the inner ring 5 of the guide is completely matched with the implantation angle requirement, thus completing the angle calibration of the implantation guide track.

[0032] The implant handle of the micro-implant is then inserted into the inner ring of the guide. The doctor then slowly pushes the implant handle along the fixed track formed by the inner ring 5 of the guide to implant the micro-implant into the zygomatic alveolar ridge at the preset angle and position. Throughout the process, the inner ring 5 of the guide restricts the movement direction of the implant handle, reducing surgical errors caused by size mismatch or operational deviation, and ensuring that the micro-implant is accurately implanted into the target site.

[0033] After the micro-implant is fully inserted and its position is confirmed to be correct, a crown remover is used to gently pry the edge of the guide plate body into the oral cavity to remove the guide plate body that has completed its guiding function from tooth 1. Then, an ultrasonic scaler is used to carefully clean the surface of tooth 1 of any remaining glass ionomer cement to ensure that the surface of tooth 1 is smooth and free of foreign objects, and to prevent residual cement from causing oral discomfort or bacterial growth.

[0034] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. An adhesive titanium surgical guide, characterized in that, Includes a guide plate body, the guide plate body including a guide plate retaining part (2) and a guiding part; The inner surface of the guide plate retention part (2) matches the shape of the tooth (1) surface. The guide plate retention part (2) is used to cover 1-2 teeth (1) at the implantation site. A gap of 0.01mm is reserved between the inner surface of the guide plate retention part (2) and the outer surface of the tooth (1) for applying adhesive. The guide portion is used to guide the implantation of the micro-implant, and it includes an outer ring (4) and an inner ring (5).

2. The adhesive titanium surgical guide according to claim 1, characterized in that: The guide plate body is made of medical titanium alloy material and is precisely manufactured by 3D printing technology. The guide plate fixing part (2) and the outer ring (4) of the guiding part are designed as an integral structure.

3. The adhesive titanium surgical guide according to claim 2, characterized in that: The length of the inner ring (5) of the guide portion is set to 12mm, and the inner diameter of the inner ring (5) of the guide portion is set to 4.5mm, which matches the end diameter of the selected micro implantation handle.

4. The adhesive titanium surgical guide according to claim 1, characterized in that: The inner ring (5) of the guide section has symmetrically distributed rotating shafts (6) on its side wall, and the outer ring (4) of the guide section has two corresponding slides (7) on its side wall. The slides (7) are L-shaped and one end of the slides (7) is open. The rotating shafts (6) are slidably installed inside the slides (7).

5. The adhesive titanium surgical guide according to claim 1, characterized in that: The guide plate retaining part (2) is provided with multiple adhesive overflow holes (3) for discharging excess adhesive during the bonding process.

6. The adhesive titanium surgical guide according to claim 1, characterized in that: The adhesive used is glass ionomer adhesive.

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