Orthodontic appliance capable of rapidly closing interstitial gaps between dentitions and manufacturing method thereof

Abstract

The invention discloses an orthodontic appliance capable of rapidly closing interdentition dispersed gaps. The orthodontic appliance comprises a retention structure, a stress dispersion connecting structure and an elastic lingual arch, the retention structure is used for retaining rear teeth on the two sides of the dentition; the stress dispersion connecting structure is located on the lip side and used for generating thrust towards the tongue side on the anterior teeth, and the two ends of the stress dispersion connecting structure are connected with the retention structures on the two sides respectively; the elastic lingual arch is located on the lingual side and used for generating contraction force to achieve the arch contraction effect, and the two ends of the elastic lingual arch are connected with the fixing structures on the two sides respectively. The invention also discloses an integrated manufacturing method of the orthodontic appliance capable of rapidly closing the interstitial space between dentitions. The combined structure of the stress dispersion structure and the elastic lingual arch is adopted, when the combined structure is applied to the lower jaw, lingual inclination can be rapidly conducted on anterior teeth of the lower jaw, meanwhile, dispersion gaps are rapidly closed, and when the combined structure is applied to the upper jaw, upper anterior teeth can be rapidly retracted, and the dispersion gaps are rapidly closed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of orthodontic appliances, in particular to an orthodontic appliance for quickly closing scattered gaps between teeth and a manufacturing method thereof. BACKGROUND

[0002] Anterior crossbite with scattered gaps is a common malocclusion. For example, patients with early "earth covering sky" often show anterior crossbite with scattered gaps in the lower jaw. Early intervention of similar malocclusions such as "earth covering sky" is of great significance to improve the patient's dental and jaw deformities, promote normal development of the jaw, and reduce the need for complex treatment in the later stage. Traditional appliances have certain limitations in correcting such malocclusions. Traditional methods usually use tongue spring bite pads in combination with lip arch appliances, but due to the complexity of the appliance design, the patient's wearing comfort is affected, the treatment efficiency is low, and it depends on the patient's good compliance. In recent years, although invisible aligners have been widely used to correct the special dental and jaw problems of patients with anterior crossbite with scattered gaps, the existing invisible aligners currently mainly achieve tooth movement by gradually replacing the aligner, which has low treatment efficiency. SUMMARY

[0003] To overcome the above-mentioned defects, the present application aims to provide an orthodontic appliance for quickly closing scattered gaps between teeth, which adopts a combination structure of stress dispersion structure and elastic lingual arch, can quickly tip the anterior teeth lingually and quickly close the scattered gaps, and improves the correction effect of anterior crossbite with scattered gaps.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0005] An orthodontic appliance for quickly closing scattered gaps between teeth, the appliance comprising a retaining structure, a stress dispersion connecting structure, and an elastic lingual arch.

[0006] The retaining structure is used to retain the bilateral posterior teeth of the dentition.

[0007] The stress dispersion connecting structure is located on the labial side and is used to generate a lingual pushing force on the anterior teeth, and the two ends of the stress dispersion connecting structure are connected to the retaining structures on both sides.

[0008] The elastic lingual arch is located on the lingual side and is used to generate a contraction force to achieve the effect of arch contraction, and the two ends of the elastic lingual arch are connected to the retaining structures on both sides.

[0009] Preferably, the stress dispersion connecting structure comprises an elastic structure, and the pushing force is the restoring force of the elastic structure.

[0010] Preferably, the elastic structure comprises a pleat structure, and the pleats of the pleat structure are arranged along the axial direction of the stress dispersion connecting structure.

[0011] Further, the lingual side of the stress dispersion connecting structure is adapted to the labial side of the anterior teeth row, and the elastic lingual arch is pressed against the lingual side of the anterior teeth row.

[0012] Preferably, the adaptation of the lingual side of the stress dispersion connecting structure to the labial side of the anterior teeth row is one of the following manners:

[0013] Manner one, the wrinkle structure is a continuous wrinkle structure, which does not wrap the anterior teeth, and exerts a control force on the anterior teeth through the contact points between the wrinkle structure and the labial side of the anterior teeth.

[0014] Manner two, the wrinkle structure is a discrete wrinkle structure, which wraps the anterior teeth respectively, and the wrapping manner is that the lingual side is left open and the labial side is wrapped, and the wrinkle structures wrapping adjacent teeth are elastically connected.

[0015] Manner three, the wrinkle structure is a continuous wrinkle structure, which wraps the maxillary anterior teeth, and the wrapping manner is that the lingual side is left open and the labial side is wrapped; the stress dispersion connecting structure is connected with the retention structures at both ends through a rod-shaped structure, and the rod-shaped structure and the continuous wrinkle structure are elastically connected.

[0016] Preferably, the retention structure covers the bilateral posterior teeth regions of the teeth row and wraps the bilateral posterior teeth of the teeth row.

[0017] Preferably, the orthodontic appliance is integrally manufactured.

[0018] The application also discloses a manufacturing method of the orthodontic appliance for quickly closing the scattered gaps between the teeth row, which comprises, but is not limited to, a hot-pressing forming process or an additive manufacturing process.

[0019] Preferably, the hot-pressing forming process comprises the following steps: a three-dimensional model containing a wrinkle structure and an elastic arch structure is made based on patient oral data, a thermoplastic material sheet is heated to a plasticizing temperature, the material is tightly formed on the surface of the model by vacuum hot-pressing or pressure hot-pressing, and the appliance with a preset structure is obtained after cooling and solidification.

[0020] Preferably, the additive manufacturing process comprises the following steps: a three-dimensional digital model of the appliance is established by computer-aided design technology, the three-dimensional digital model contains complete geometric information of the lower appliance, and the appliance is directly printed by stereolithography, fused deposition modeling or other 3D printing technology using biocompatible photosensitive resin or thermoplastic material.

[0021] The application has the following beneficial effects:

[0022] 1. The efficiency of the appliance is improved, the stress dispersion structure on the labial side can quickly close the scattered gaps and tongue-incline the anterior teeth, and the elastic lingual arch structure on the lingual side can quickly reduce the dental arch to solve the problem of insufficient arch reduction efficiency.

[0023] 2. Increase patient comfort, traditional functional appliance wearing comfort is low, the existing invisible aligner can only realize the control of tooth movement, and cannot realize the high efficiency of similar functional appliance. The present application combines the "efficacy" advantage of traditional appliance and the "comfort" characteristics of invisible aligner, and improves the wearing comfort of patients.

[0024] 3. Personalized design, the present application can be designed according to the performance of the patient, and can be used for treating "gebaotian" (crossbite) caused by lower anterior teeth, and can also be used for treating patients with anterior teeth protrusion and scattered gaps. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The structure diagram of the aligner disclosed in the present application is shown.

[0026] Figure 2 The front view of the aligner model is shown.

[0027] Figure 3 The rear view of the aligner model is shown.

[0028] Figure 4 The top view of the aligner model is shown.

[0029] Figure 5 The side view of the double-jaw aligner application scenario is shown. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application will be further described in detail below with reference to the drawings.

[0031] Example 1

[0032] The present embodiment discloses a kind of orthodontic aligner for quickly closing scattered gaps between dentition, the orthodontic aligner for quickly closing scattered gaps between dentition (hereinafter referred to as aligner) is integrally manufactured, specifically as shown in Figure 1 As shown, the aligner includes a retaining structure 1, a stress dispersion connecting structure 2 and an elastic lingual arch 3.

[0033] Among them, the retaining structure 1 is used to retain the bilateral posterior teeth of the dentition; the stress dispersion connecting structure 2 is located on the labial side, used to generate a pushing force to the anterior teeth to the lingual side, and the two ends of the stress dispersion connecting structure 2 are connected to the retaining structure 1 on both sides; the elastic lingual arch 3 is located on the lingual side, used to generate a contraction force to achieve the effect of arch contraction, and the two ends of the elastic lingual arch 3 are connected to the retaining structure 1 on both sides.

[0034] In the present embodiment, the stress dispersion connecting structure 2 includes an elastic structure, and the pushing force is the restoring force of the elastic structure; the elastic structure includes a pleated structure 21, and the pleats of the pleated structure 21 are arranged along the axial direction of the stress dispersion connecting structure.

[0035] In this embodiment, the adaptation of the lingual side of the stress dispersion connecting structure 2 to the labial side of the anterior teeth is one of the following modes:

[0036] Mode one, the wrinkle structure 21 is a continuous wrinkle structure, which does not wrap the anterior teeth, and exerts a control force on the anterior teeth through the contact points between the wrinkle structure and the lingual side of the anterior teeth.

[0037] Mode two, the wrinkle structure 21 is a dispersed wrinkle structure, which wraps the anterior teeth respectively, and the wrapping mode is that the lingual side is left open and the labial side is wrapped, and the wrinkle structures 21 wrapping adjacent teeth are elastically connected.

[0038] Mode three, the wrinkle structure 21 is a continuous wrinkle structure, which wraps the maxillary anterior teeth, and the wrapping mode is that the lingual side is left open and the labial side is wrapped; the stress dispersion connecting structure is connected to the retention structure 1 at both ends through a rod-shaped structure, and an elastic connection is formed between the rod-shaped structure and the continuous wrinkle structure.

[0039] In order to better show the wearing effect of the appliance, the embodiment discloses a model thereof, and specifically as shown in Figures 2-4 , a mouth scanning model 4 is provided, the retention structure 1 wraps the posterior teeth, the lingual side of the stress dispersion connecting structure 2 is adapted to the labial side of the anterior teeth, and the elastic lingual arch 3 abuts against the lingual side of the anterior teeth.

[0040] The embodiment is applicable to patients with anterior teeth labial inclination + scattered gaps, and the appliance with the stress dispersion connecting structure is used, which generates an elastic contraction force when the appliance is in place, plays a role in narrowing the posterior arch shape and increasing the posterior tooth anchorage, and generates a labial inclination force of the anterior teeth to realize the labial inclination expansion of the anterior teeth.

[0041] The appliance can be applied to the maxilla or the mandible alone, or can be applied to both jaws at the same time; the embodiment gives an illustration and description of the application to the mandible, and the application to the maxilla is similar to the application to the maxilla, and thus is not described in detail.

[0042] Embodiment 2

[0043] As shown in Figure 5 , on the basis of embodiment 1, the embodiment discloses the case that the appliance is applied to the maxilla and the mandible at the same time, and the appliances for the maxilla and the mandible both include the retention structure 1, the stress dispersion connecting structure 2 and the elastic lingual arch, which are used to realize the treatment of patients with double-jaw anterior teeth protrusion accompanied by scattered gaps.

[0044] Embodiment 3

[0045] The embodiment discloses a manufacturing method of the orthodontic appliance for quickly closing scattered gaps between tooth rows, which includes but is not limited to a hot pressing forming process or an additive manufacturing process, wherein:

[0046] The hot-press forming process includes: making a three-dimensional model containing wrinkle structure and elastic arch structure based on patient's oral data, heating the thermoplastic material sheet to plasticizing temperature, then making the material adhere to the model surface by vacuum hot-pressing or pressure hot-pressing, demolding after cooling and solidification to obtain the aligner with preset structure;

[0047] The additive manufacturing process includes: establishing a three-dimensional digital model of the aligner by computer-aided design technology, the three-dimensional digital model contains complete geometric information of the aligner, using stereolithography, fused deposition modeling or other 3D printing technology, directly printing forming using biocompatible photosensitive resin or thermoplastic material.

[0048] Embodiment 4

[0049] As an embodiment, the elastic lingual arch can be replaced by a structure with elastic restoring force such as metal elastic wire or spring, the elastic structure is mechanically connected with the transparent hard polymer film, the connection mode includes fixed connection such as perforation, adhesion and embedding, and can also be detachably connected with the aligner through clamping structure.

[0050] Of course, the present application can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application, but these corresponding changes and modifications should belong to the protection scope of the claims attached to the present application.

Claims

1. An orthodontic appliance for quickly closing scattered gaps between teeth, characterized in that, This includes retention structures, stress-dispersing connection structures, and elastic tongue arches; The retention structure is used to retain the posterior teeth on both sides of the dentition. The stress-dispersing connection structure is located on the labial side and is used to generate a lingual thrust on the anterior teeth. The two ends of the stress-dispersing connection structure are respectively connected to the retention structures on both sides. The elastic tongue arch is located on the side of the tongue and is used to generate contraction force to achieve the arch-contraction effect. The two ends of the elastic tongue arch are respectively connected to the fixation structures on both sides.

2. The orthodontic appliance for quickly closing scattered gaps between teeth according to claim 1, characterized in that, The stress-dispersing connection structure includes an elastic structure, and the thrust is the restoring force of the elastic structure.

3. The orthodontic appliance for quickly closing scattered gaps between teeth according to claim 2, characterized in that, The elastic structure includes a pleated structure, wherein the pleats of the pleated structure are arranged along the axial direction of the stress-dispersing connection structure.

4. The orthodontic appliance for quickly closing scattered gaps between teeth according to claim 3, characterized in that, The lingual side of the stress-dispersing connection structure is adapted to the labial side of the anterior teeth, and the elastic lingual arch abuts against the lingual side of the anterior teeth.

5. The orthodontic appliance for quickly closing scattered gaps between teeth according to claim 4, characterized in that, The lingual side of the stress-dispersing connection structure is adapted to the labial side of the anterior dentition in one of the following ways: Method 1: The folded structure is a continuous folded structure that does not wrap around the anterior teeth. It applies control force to the anterior teeth through its contact point with the labial surface of the anterior teeth. Method 2: The folded structure is a dispersed folded structure, which wraps around the anterior teeth respectively. The wrapping method is that the lingual side is open and the labial side is formed. The folded structures wrapping adjacent teeth are elastically connected. Method 3: The folded structure is a continuous folded structure that wraps around the anterior teeth. The wrapping method is that the lingual side is open and the labial side is wrapped. The stress-dispersing connection structure and the retention structure at both ends are connected by a rod-shaped structure, and an elastic connection is formed between the rod-shaped structure and the continuous folded structure.

6. The orthodontic appliance for quickly closing scattered gaps between teeth according to claim 1, characterized in that, The retention structure covers and wraps around the posterior teeth on both sides of the dentition.

7. The orthodontic appliance for rapidly closing scattered interdental gaps according to any one of claims 1-6, characterized in that, The orthodontic appliance is manufactured as a single unit.

8. A method for manufacturing an orthodontic appliance for rapidly closing scattered interdental gaps as described in claim 7, characterized in that, The manufacturing methods include, but are not limited to, hot pressing or additive manufacturing processes.

9. The manufacturing method according to claim 8, characterized in that, The hot pressing molding process includes: creating a three-dimensional model containing pleated structures and elastic dental arch structures based on the patient's oral data; heating a thermoplastic material sheet to the plasticizing temperature; forming the material tightly against the model surface by vacuum hot pressing or pressure hot pressing; and demolding after cooling and solidification to obtain an orthodontic appliance with a preset structure.

10. The manufacturing method according to claim 8, characterized in that, The additive manufacturing process includes: establishing a three-dimensional digital model of the orthodontic appliance using computer-aided design technology, wherein the three-dimensional digital model contains complete geometric information of the lower orthodontic appliance, and directly printing it using stereolithography, fused deposition modeling or other 3D printing technologies, using biocompatible photosensitive resin or thermoplastic materials.

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