An interproximal contouring system for a removable fixed appliance

Abstract

The application discloses a kind of adjacent surface forming systems of exempting from to dismantle fixed appliance, it is related to oral medical instrument technical field, comprising: spacer group, spacer group includes with the corresponding filling adjacent surface one-to-one of interproximal clearance place, forming sheet has the shape matching of corresponding filling adjacent surface;With the fixed connection of spacer group wedge, wedge is used to set in the outer spread gap of the side of interproximal clearance away from fixed appliance, wedge can be closely attached with the teeth of the two sides of interproximal clearance;With the elastic connecting piece corresponding to forming sheet, elastic connecting piece includes elastic rope and two respectively fixed in the connecting ring of two ends of elastic rope, forming sheet is set with the structure of hanging connection for being hung with elastic connecting piece in the end away from wedge.The application not only need not remove fixed appliance on the teeth of patient, but also can use bracket as stable anchor point, realize the stable fixation of forming sheet by elastic connecting piece and wedge.

Description

Technical Field

[0001] This invention relates to the field of oral medical device technology, and in particular to a proximal shaping system for a non-removable fixed orthodontic appliance. Background Technology

[0002] Dental caries is a common and frequently occurring oral disease. In orthodontic treatment, the presence of brackets, orthodontic archwires, and other components in fixed braces increases the difficulty of cleaning, resulting in a higher incidence of interproximal caries (cavities on the adjacent surfaces of teeth) during orthodontic treatment.

[0003] Currently, the commonly used instruments for filling proximal caries of posterior teeth include molded sheet systems and wedges. Traditional molded sheets require the use of molded clips, relying on the tension of the clips to keep the sheet tightly against the tooth surface, forming a closed filling space. However, for patients undergoing fixed orthodontic treatment (wearing brackets and orthodontic archwires), the archwires span and occupy most of the labial and buccal space of the crown, making it impossible to place and position traditional molded sheets and clips. Therefore, clinicians often have to remove the archwires when filling proximal caries in such patients, and then re-ligate them after the filling is completed. Even after removing the archwires, the presence of brackets makes it difficult for the proximal molding system to adhere to the tooth surface. This process not only greatly increases the difficulty of the dentist's operation and chairside time, but also causes additional pain and inconvenience to the patient, and may prolong the overall treatment period.

[0004] To address this issue, some attempts have been made in existing technologies. For example, the molded piece is fixed by creating an opening suitable for the bracket, but the orthodontic archwire still needs to be removed during the filling process. Therefore, it is necessary to develop a filling system specifically designed for orthodontic patients that can achieve stable and reliable retention while preserving the orthodontic archwire and effectively restore the proximal morphology. Summary of the Invention

[0005] The purpose of this invention is to provide a proximal shaping system for non-removable fixed orthodontic appliances to solve the problems existing in the prior art, and to achieve stable and reliable fixation of the shaping piece while retaining or not removing the orthodontic archwire, thereby improving the efficiency of tooth filling.

[0006] To achieve the above objectives, the present invention provides the following solution: This invention provides a proximal shaping system for non-removable fixation orthodontic appliances, comprising: A set of isolation strips is used to be inserted into the interproximal space to separate the area to be filled of the proximal caries from the adjacent teeth; the set of isolation strips includes a molded strip that corresponds one-to-one with the proximal surface to be filled in the interproximal space, the molded strip having a fitting surface that matches the shape of the corresponding proximal surface to be filled, the molded strip being used to fit against the proximal caries where the corresponding proximal surface to be filled is located to form the space to be filled; A wedge block fixedly connected to the isolation plate group, the wedge block being used to be disposed in the abduction gap on the side of the adjacent space away from the fixed orthodontic appliance, the wedge block being able to fit tightly against the teeth on both sides of the adjacent space; The elastic connectors correspond one-to-one with the molded pieces. Each elastic connector includes an elastic rope and two connecting rings fixed at both ends of the elastic rope. The end of the molded piece away from the wedge block is provided with a hook structure. Both connecting rings can be hooked to the hook structure. The elastic rope is used to bypass the bracket on the proximal caries tooth corresponding to the molded piece.

[0007] Preferably, when only one of the two adjacent surfaces at the adjacent gap is the adjacent surface to be filled, the isolation sheet group includes one molded sheet.

[0008] Preferably, when both adjacent surfaces at the adjacent gap are the adjacent surfaces to be filled, the isolation sheet group includes two molded sheets; and the two molded sheets are fixedly connected.

[0009] Preferably, the edges of the two molded pieces in the same group of spacers are separated from each other on the gingival side.

[0010] Preferably, the molded sheet is provided with a fitting portion for fitting with the edge of the occlusal surface of the corresponding proximal caries tooth.

[0011] Preferably, the molded sheet is made of metal or polymer material.

[0012] Preferably, it also includes a variety of different types of wedges for insertion between the isolation strip assembly and the gingival papilla.

[0013] Preferably, the hanging structure includes a connecting post and a limiting ball, one end of the connecting post is fixedly connected to the molded sheet and the other end is fixedly connected to the limiting ball, and the diameter of the limiting ball is larger than the diameter of the connecting post.

[0014] Preferably, the elastic rope is an elastic rubber band, and the connecting ring is elastic.

[0015] Preferably, the wedge has a triangular cross-section; the material of the wedge is an elastic material.

[0016] The present invention achieves the following technical effects compared to the prior art: The proximal shaping system of the non-removable fixed orthodontic appliance of the present invention not only eliminates the need to remove the fixed orthodontic appliance (including brackets, orthodontic archwires, etc.) from the patient's teeth during use, but also utilizes the brackets as stable anchor points and achieves stable fixation of the shaping piece through elastic connectors and wedge-shaped parts. This solves the problem that traditional shaping pieces cannot be used or cannot fit tightly due to obstruction by orthodontic archwires, greatly simplifies the clinical operation process and reduces patient pain.

[0017] This invention provides initial retention by using a wedge-shaped component to stabilize the molded piece in the interproximal area. The elastic connector, through the bracket and orthodontic archwire, tightly adheres the other end of the molded piece to the tooth surface, providing final locking force to maintain a close fit between the molded piece and the tooth. The elastic engagement of the elastic connector and the wedge locking force of the wedge effectively prevent the risk of displacement or detachment of the molded piece during the filling process. The molded piece, elastic connector, and wedge are connected as a whole. When operating, the dentist only needs to hold the system, insert it into the interproximal space, and then engage the bracket through the elastic connector to achieve one-step positioning. Unlike traditional methods, there is no need to place the molded piece, elastic clip, and wedge separately. The operation is simple and quick, saving chairside time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the proximal shaping system of the non-removable fixation orthodontic appliance of the present invention. Figure 1 ; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the elastic connector in Embodiment 1 of the proximal molding system of the non-removable fixation orthodontic appliance of the present invention; Figure 4 This is a schematic diagram of the proximal shaping system of the non-removable fixation orthodontic appliance of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the proximal shaping system of the non-removable fixation orthodontic appliance of the present invention, in Embodiment 2. Figure 1 ; Figure 6 for Figure 5 A magnified view of a section at point B in the middle; Figure 7 This is a schematic diagram of the structure of the proximal shaping system of the non-removable fixation orthodontic appliance of the present invention, in Embodiment 2.Figure 2 ; In the diagram: 1. Proximal caries; 2. Molding piece; 3. Connecting post; 4. Elastic cord; 5. Connecting ring; 6. Wedge block; 7. Orthodontic archwire; 8. Bracket; 9. Limiting ball. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The purpose of this invention is to provide a proximal shaping system for non-removable fixed orthodontic appliances to solve the problems existing in the prior art, and to achieve stable and reliable fixation of the shaping piece while retaining or not removing the orthodontic archwire, thereby improving the efficiency of tooth filling.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1 like Figures 1 to 4 As shown, this embodiment provides a proximal shaping system for a non-removable fixation orthodontic appliance, comprising: The isolation strip set is used to be inserted in the interproximal space to separate the area to be filled of the proximal caries 1 from the adjacent teeth; the isolation strip set includes a molded strip 2 that corresponds one-to-one with the proximal surface to be filled in the interproximal space, the molded strip 2 has a fitting surface that matches the shape of the corresponding proximal surface to be filled, and the molded strip 2 is used to fit against the proximal caries 1 where the corresponding proximal surface to be filled is located to form the space to be filled. The wedge block 6 is fixedly connected to the isolation plate group. The wedge block 6 is used to be placed in the abduction space on the side of the adjacent space away from the fixed orthodontic appliance. The wedge block 6 can fit tightly with the teeth on both sides of the adjacent space. If the bracket 8 is on the buccal side of the tooth, the wedge block 6 is placed in the palatal abduction space. If the bracket 8 is on the palatal side of the tooth, the wedge block 6 is placed in the buccal abduction space.

[0024] The elastic connectors corresponding to the molded pieces 2 include elastic cords 4 and two connecting rings 5 ​​fixed at both ends of the elastic cords 4. The end of the molded piece 2 away from the wedge block 6 is provided with a hook structure. Both connecting rings 5 ​​can be hooked to the hook structure. The elastic cords 4 are used to bypass the brackets 8 on the proximal caries teeth 1 corresponding to the molded pieces 2. The elastic connectors are used to provide elastic pre-tightening force to the molded pieces 2 by bypassing the brackets 8 using their own elasticity, so that the molded pieces 2 fit tightly against the tooth surface on the orthodontic side.

[0025] like Figure 1 and Figure 3 As shown, in this embodiment, the isolation sheet group includes two molded sheets 2; and the two molded sheets 2 are fixedly connected. Correspondingly, the number of elastic connectors and hanging structures is also two. This embodiment is applicable to the case where both adjacent surfaces at the adjacent gap are adjacent surfaces to be filled.

[0026] In the optional embodiments of this example, it is more preferred that when the isolation strip group includes two molded strips 2, the edges of the two molded strips 2 on the gingival side of the same isolation strip group are separated from each other, so as to facilitate the possible insertion of wedges to help restore the shape of the triangular interdental space on both sides of the teeth at the same time.

[0027] In the optional embodiments of this example, it is more preferred that the molded sheet 2 is provided with a fitting part for fitting with the edge of the occlusal surface of the corresponding proximal carious tooth 1, which can further improve the stability of the fitting between the molded sheet 2 and the proximal carious tooth 1.

[0028] In the optional solutions of this embodiment, it is more preferred that the molding sheet 2 is made of metal or polymer material; the molding sheet 2 needs to be pre-formed so that the molding sheet 2 can conform to the mesial or distal anatomical shape of the tooth to be filled (e.g., the first molar) so as to form a complete sidewall during filling and prevent the filling material from overflowing.

[0029] In the optional embodiments of this example, a more preferred option is to include various types of wedges for insertion between the isolation strip group and the gingival papilla, the wedges serving to seal the gingival margin and separate the teeth.

[0030] In the optional embodiments of this example, a preferred embodiment includes a connecting post 3 and a limiting ball 9. One end of the connecting post 3 is fixedly connected to the molded sheet, and the other end is fixedly connected to the limiting ball 9. The diameter of the limiting ball 9 is larger than the diameter of the connecting post 3. The function of the limiting ball 9 is to prevent the connecting ring attached to the limiting post from detaching from the connecting post 3. The spherical surface of the limiting ball 9 is round and smooth, which can prevent scratching the patient's oral cavity. In practical applications, technicians can adapt the specific design of the connecting structure as long as a stable connection between the connecting structure and the connecting ring 5 can be achieved.

[0031] In the optional schemes of this embodiment, it is more preferred that the elastic rope 4 is an elastic rubber band and the connecting ring 5 is elastic; in this embodiment, the connecting ring 5 is a rubber ring.

[0032] In the optional solutions of this embodiment, it is more preferred that the cross-section of the wedge block 6 is triangular; the material of the wedge block 6 is an elastic material, and the wedge block 6 has a certain degree of resilience and compressibility, which can facilitate the wedge block 6 to undergo a certain deformation while the elastic connector provides elastic pre-tightening force, so as to adapt to teeth of different sizes and shapes, and enable the wedge block 6 to better fit the shape of different tooth surfaces.

[0033] The specific usage process of the proximal shaping system of the non-removable fixation orthodontic appliance in this embodiment is as follows: First, based on the location of the teeth that need to be filled, select the appropriate model of the non-removable fixed orthodontic appliance proximal shaping system; Then, holding the proximal shaping system of the non-removable fixed orthodontic appliance of this embodiment, the spacer group is inserted into the interproximal gap, and the wedge block 6 is tightly fitted to the outward gap on the non-orthodontic archwire 7 side. One connecting ring 5 on the elastic connector (hereinafter referred to as the first connecting ring) is hooked to the hooking structure on the shaping piece 2. Then, a tool (such as a probe) is used to hook the other connecting ring 5 on the elastic connector (hereinafter referred to as the second connecting ring), so that the elastic cord 4 passes around the bracket 8 and the ligation area or locking area of ​​the orthodontic archwire 7. Then, the second connecting ring is hooked to the hooking structure on the shaping piece 2. If the spacer group includes two shaping pieces 2, the elastic connectors of the two shaping pieces 2 are fixed in the same way to the bracket 8 and the ligation area or locking area of ​​the orthodontic archwire 7 on the corresponding proximal caries tooth 1. In addition, a wedge can be inserted between the molding piece 2 and the gingival papilla as needed; At this point, the ligation or locking area of ​​the bracket 8 and the orthodontic archwire 7, along with the wedge block 6, have achieved the retention of the molding piece 2 and its close fit to the tooth surface, forming a stable working state. Finally, the dentist can fill, shape, and light-cure the cavity through the space to be filled (i.e., the filling cavity) formed by the molding piece 2 and the corresponding proximal carious tooth 1. After filling, the two connecting rings 5 ​​of the elastic connector are removed from the hanging structure, and then the isolation piece group and the wedge block 6 are removed from the interproximal space.

[0034] Example 2 like Figures 5 to 7 As shown, this embodiment provides a proximal shaping system for non-removable fixed orthodontic appliances. The specific structure and usage process of the proximal shaping system for non-removable fixed orthodontic appliances in this embodiment are basically the same, with the only difference being: In this embodiment, the isolation sheet group includes a molded sheet 2, and correspondingly, there is only one elastic connector and hanging structure. This embodiment is applicable to the case where only one of the two adjacent surfaces at the adjacent gap is the adjacent surface to be filled.

[0035] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A proximal shaping system for a non-removable fixation orthodontic appliance, characterized in that, include: A set of isolation strips is used to be inserted into the interproximal space to separate the area to be filled of the proximal caries from the adjacent teeth; the set of isolation strips includes a molded strip that corresponds one-to-one with the proximal surface to be filled in the interproximal space, the molded strip having a fitting surface that matches the shape of the corresponding proximal surface to be filled, the molded strip being used to fit against the proximal caries where the corresponding proximal surface to be filled is located to form the space to be filled; A wedge block fixedly connected to the isolation plate group, the wedge block being used to be disposed in the abduction gap on the side of the adjacent space away from the fixed orthodontic appliance, the wedge block being able to fit tightly against the teeth on both sides of the adjacent space; The elastic connectors correspond one-to-one with the molded pieces. Each elastic connector includes an elastic rope and two connecting rings fixed at both ends of the elastic rope. The end of the molded piece away from the wedge block is provided with a hook structure. Both connecting rings can be hooked to the hook structure. The elastic rope is used to bypass the bracket on the proximal caries tooth corresponding to the molded piece.

2. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 1, characterized in that: When only one of the two adjacent surfaces at the adjacent gap is the adjacent surface to be filled, the isolation sheet group includes one of the molded sheets.

3. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 1, characterized in that: When both adjacent surfaces at the adjacent gap are the adjacent surfaces to be filled, the isolation sheet group includes two molded sheets; and the two molded sheets are fixedly connected to each other.

4. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 3, characterized in that: The edges of the two molded pieces in the same set of spacers are separated from each other on the gingival side.

5. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 1, characterized in that: The molded sheet is provided with a fitting portion for fitting with the edge of the occlusal surface of the corresponding proximal caries tooth.

6. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 1, characterized in that: The molded sheet is made of metal or polymer materials.

7. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 1, characterized in that: It also includes various types of wedges for insertion between the isolation plate assembly and the gingival papilla.

8. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 1, characterized in that: The mounting structure includes a connecting post and a limiting ball. One end of the connecting post is fixedly connected to the molded sheet, and the other end is fixedly connected to the limiting ball. The diameter of the limiting ball is larger than the diameter of the connecting post.

9. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 1, characterized in that: The elastic rope is made of elastic rubber band, and the connecting ring is elastic.

10. The proximal shaping system for the non-removable fixation orthodontic appliance according to claim 1, characterized in that: The wedge has a triangular cross-section; the wedge is made of an elastic material.

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