Tooth socket with expansion bow and front traction
By integrating an expansion structure and anterior traction function into the braces base, the applicability of braces when tooth crowns are incompletely erupted or shortly erupted is solved, achieving stable use of expansion and anterior traction, and improving the applicability and wearing effect of braces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-26
AI Technical Summary
Existing braces often fail to properly position clasps when the crowns are not fully erupted or are only shortly erupted, rendering the expander and traction device unusable. This results in poor applicability, and there is a lack of braces structures that integrate both expander and traction functions.
Design a dental brace with arch expansion and forward traction. By setting an arch expansion structure and traction connector on the brace base, the functions of arch expansion and forward traction are integrated. The hollow structure and serpentine bending structure are used for force buffering. A limiting buckle or tubular structure is used for forward traction. The length is adjusted by elastic traction components to achieve stable traction.
It integrates arch expansion and anterior traction functions into the braces, improving their applicability, especially for patients with incomplete or short tooth eruption, ensuring stable wearing and effective use of the braces.
Smart Images

Figure CN224269467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental technology, specifically to dental braces. Background Technology
[0002] In existing technologies, arch expander retractors generally use clasps for retention. The clasps hold the crown labially to achieve retention. However, when the patient's crown is not fully erupted or is short, the crown height is insufficient, making it difficult for the clasps to be positioned and hold the crown, thus preventing the patient from wearing and using the arch expander retractor. This results in poor applicability of the arch expander retractor.
[0003] Chinese patent CN106667594A discloses a dental arch expander and its operating method. This patent uses a detachable bracket to allow the dental arch expander to adapt to the required expansion distance between the front and back of the dental arch. However, this device cannot integrate arch expansion and anterior traction functions.
[0004] Currently, there is a lack of braces structures that can integrate both arch expansion and anterior traction. Utility Model Content
[0005] In view of the problems existing in the prior art, this utility model provides a dental brace with arch expansion and anterior traction to solve at least one of the above technical problems.
[0006] To achieve the above objectives, this utility model provides a dental brace with arch expansion and anterior traction, including a brace base, characterized in that the dental brace base includes a first molar covering part, a first transition connecting part, a central incisor covering part, a second transition connecting part, and a second molar covering part connected in sequence.
[0007] The first transition connection portion and the second transition connection portion are provided with a hollow structure;
[0008] The first molar covering part and the second molar covering part are connected by an arch expansion structure, the middle part of which is a meandering bent structure;
[0009] The labial side of the first molar covering portion and the labial side of the second molar covering portion are fixed with traction connectors for forward traction, and the traction connectors are limiting buckles or tubular structures.
[0010] This invention optimizes the structure of the braces, achieving the arch expansion function through the arch expansion structure and the forward traction function through the traction connector, thus integrating the arch expansion and forward traction functions into the braces.
[0011] More preferably, both the first transition connection portion and the second transition connection portion include an inner connecting strip located on the tongue side and an outer connecting strip located on the lip side, and both the inner connecting strip and the outer connecting strip are provided with a serpentine bending structure.
[0012] It facilitates the buffering of forces during bow expansion and forward traction.
[0013] As a preferred embodiment, the two ends of the labial side of the central incisor covering portion are fixed with first limiting tubes;
[0014] The tubular structure is fixed to the labial side of the first molar covering portion and the labial side of the second molar covering portion;
[0015] The first limiting tubes at both ends of the central incisor covering portion are connected to the tubular structures fixed on the first molar covering portion and the second molar covering portion via elastic traction members.
[0016] It facilitates forward traction.
[0017] More preferably, the first limiting tube has a vertically arranged notch on the side away from the tubular structure, and the notch is used to embed the elastic tension member.
[0018] As another preferred embodiment, the two ends of the labial side of the central incisor covering portion are fixed with first buckles;
[0019] The limiting buckle is fixed to the labial side of the first molar covering part and the labial side of the second molar covering part;
[0020] The first buckles at both ends of the central incisor covering portion are connected to the limiting buckles fixed on the first molar covering portion and the second molar covering portion via elastic traction members.
[0021] It facilitates forward traction.
[0022] As another preferred embodiment, the traction connector is connected to the traction wire.
[0023] More preferably, the elastic traction member is a rubber band, the rubber band includes an elastic connecting strip, and both ends of the elastic connecting strip are connected to loops, the loops being used to pass through the traction connector.
[0024] Alternatively, the elastic traction element is a rubber band, which includes elastic loops connected sequentially along its length for passing through the traction connector.
[0025] The rubber band length can be adjusted so that any one of the elastic rings can be fixed to the traction connector.
[0026] Alternatively, the elastic tension member is a metal wire, which includes, along its length, a first insertion portion for inserting into the first limiting tube, a meandering elastic bending portion, and a second insertion portion for inserting into a tubular structure, all connected in sequence.
[0027] More preferably, the first limiting tube and the tubular structure have an exposed opening in the middle for exposing the metal wire.
[0028] It facilitates bending of the metal wire through the exposed opening, making it easy to limit the movement of the metal wire.
[0029] Compared with the prior art, the beneficial effects of this utility model are: by optimizing the structure of the braces, this utility model realizes the arch expansion function through the arch expansion structure and the forward traction function through the traction connector, thus realizing the integration of arch expansion and forward traction functions on the braces. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of a specific embodiment 1 of the present utility model;
[0031] Figure 2 This is a schematic diagram of a specific embodiment 2 of the present utility model;
[0032] Figure 3 This is a schematic diagram of a specific embodiment 3 of the present utility model;
[0033] Figure 4 This is a structural schematic diagram of a specific embodiment 5 of the present utility model.
[0034] In the diagram: 1 is the first molar covering part, 2 is the central incisor covering part, 3 is the second molar covering part, 4 is the first transition connecting part, 5 is the second transition connecting part, 6 is the tubular structure, 7 is the limiting buckle, 8 is the first limiting tube, 9 is the first buckle body, 10 is the elastic band, 11 is the metal wire, and 12 is the arch expansion structure. Detailed Implementation
[0035] The present invention will be further described below with reference to the accompanying drawings.
[0036] See Figure 1Specific Embodiment 1: A dental brace with arch expansion and anterior traction, comprising a brace base, characterized in that the brace base comprises a first molar covering portion 1, a first transition connecting portion 4, a central incisor covering portion 2, a second transition connecting portion 5, and a second molar covering portion 3 connected in sequence; the first transition connecting portion 4 and the second transition connecting portion 5 are provided with hollow structures; the first molar covering portion 1 and the second molar covering portion 3 are connected by an arch expansion structure 12, the middle part of the arch expansion structure 12 being a meandering bent structure; traction connectors for anterior traction are fixed on the labial side of the first molar covering portion 1 and the labial side of the second molar covering portion 3, the traction connectors being a limiting buckle 7 or a tubular structure 6. This utility model, by optimizing the structure of the dental brace, achieves the arch expansion function through the arch expansion structure 12 and the anterior traction function through the traction connectors, thereby integrating arch expansion and anterior traction functions into the dental brace.
[0037] Both the first transition connection 4 and the second transition connection 5 include an inner connecting strip located on the tongue side and an outer connecting strip located on the lip side, and both the inner and outer connecting strips are provided with a serpentine bending structure. This facilitates the buffering of forces during bow expansion and forward traction.
[0038] See Figure 2 In specific embodiment 2, based on specific embodiment 1, first limiting tubes 8 are fixed to both ends of the labial side of the central incisor covering part 2; tubular structures 6 are fixed to the labial side of the first molar covering part 1 and the second molar covering part 3; the first limiting tubes 8 at both ends of the central incisor covering part 2 are connected to the tubular structures 6 fixed on the first molar covering part 1 and the second molar covering part 3 through elastic traction members. This facilitates forward traction. Vertically arranged notches are opened on the sides of the first limiting tubes 8 and the tubular structures 6 away from each other, and the notches are used to embed the elastic traction members.
[0039] The elastic traction element is a rubber band 10, which includes an elastic connecting strip with loops at both ends for passing through the traction connector. Alternatively, the elastic traction element is a rubber band 10, which includes elastic rings sequentially connected along its length for passing through the traction connector. This allows any one of the elastic rings to be fixed to the traction connector by adjusting the length of the rubber band 10.
[0040] See Figure 3 In specific embodiment 3, based on specific embodiment 1, first limiting tubes 8 are fixed to both ends of the labial side of the central incisor covering portion 2; tubular structures 6 are fixed to the labial side of the first molar covering portion 1 and the second molar covering portion 3; the first limiting tubes 8 at both ends of the central incisor covering portion 2 are connected to the tubular structures 6 fixed on the first molar covering portion 1 and the second molar covering portion 3 through elastic traction members. This facilitates anterior traction.
[0041] The elastic tensioning member is a metal wire 11, which includes, along its length, a first insertion part for inserting into the first limiting tube 8, a meandering elastic bending part, and a second insertion part for inserting into the tubular structure 6, all connected in sequence.
[0042] See Figure 3 In specific embodiment 4, based on specific embodiment 3, an exposed opening is provided in the middle of the first limiting tube 8 and the tubular structure 6 for exposing the metal wire. This facilitates bending the metal wire through the exposed opening, thus facilitating the limiting of the metal wire.
[0043] See Figure 4 In specific embodiment 5, based on specific embodiment 1, first buckle bodies 9 are fixed at both ends of the labial side of the central incisor covering part 2; limit buckles 7 are fixed at the labial side of the first molar covering part 1 and the labial side of the second molar covering part 3; the first buckle bodies 9 at both ends of the central incisor covering part 2 are connected to the limit buckles 7 fixed on the first molar covering part 1 and the second molar covering part 3 through elastic traction members. This facilitates forward traction.
[0044] In specific embodiment 6, the difference from specific embodiment 1 is that the traction connector is connected to the traction wire. The traction wire extends to the outside of the mouth and connects to the traction cap.
[0045] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A dental brace with arch expansion and anterior traction, comprising a brace base, characterized in that, The dental brace base includes a first molar covering part, a first transition connecting part, a central incisor covering part, a second transition connecting part, and a second molar covering part connected in sequence; The first transition connection portion and the second transition connection portion are provided with a hollow structure; The first molar covering part and the second molar covering part are connected by an arch expansion structure, the middle part of which is a meandering bent structure; The labial side of the first molar covering portion and the labial side of the second molar covering portion are fixed with traction connectors for forward traction, and the traction connectors are limiting buckles or tubular structures.
2. A dental brace with arch expansion and anterior traction as described in claim 1, characterized in that: Both the first transition connection and the second transition connection include an inner connecting strip located on the tongue side and an outer connecting strip located on the lip side, and both the inner connecting strip and the outer connecting strip are provided with a serpentine bending structure.
3. A dental brace with arch expansion and anterior traction as described in claim 1, characterized in that: The two ends of the labial side of the central incisor covering portion are fixed with first limiting tubes; The tubular structure is fixed to the labial side of the first molar covering portion and the labial side of the second molar covering portion; The first limiting tubes at both ends of the central incisor covering portion are connected to the tubular structures fixed on the first molar covering portion and the second molar covering portion via elastic traction members.
4. A dental brace with arch expansion and anterior traction as described in claim 3, characterized in that: The first limiting tube has a vertically arranged notch on the side away from the tubular structure, and the notch is used to embed the elastic tension member.
5. A dental brace with arch expansion and anterior traction as described in claim 1, characterized in that: The two ends of the labial side of the central incisor covering portion are fixed with first buckles; The limiting buckle is fixed to the labial side of the first molar covering part and the labial side of the second molar covering part; The first buckles at both ends of the central incisor covering portion are connected to the limiting buckles fixed on the first molar covering portion and the second molar covering portion via elastic traction members.
6. A dental brace with arch expansion and anterior traction as described in claim 1, characterized in that: The traction connector is connected to the traction wire.
7. A dental brace with arch expansion and anterior traction as described in claim 3, characterized in that: The elastic traction element is a rubber band, which includes an elastic connecting strip. Both ends of the elastic connecting strip are connected to loops for passing through the traction connector.
8. A dental brace with arch expansion and anterior traction as described in claim 3, characterized in that: The elastic traction element is a rubber band, which includes elastic rings connected sequentially along its length, and the elastic rings are used to pass through the traction connector.
9. A dental brace with arch expansion and anterior traction as described in claim 3, characterized in that: The elastic tensioning element is a metal wire, which includes, along its length, a first insertion part for inserting into the first limiting tube, a meandering elastic bending part, and a second insertion part for inserting into a tubular structure, all connected in sequence.
10. A dental brace with arch expansion and anterior traction as described in claim 9, characterized in that: The first limiting tube and the tubular structure have an exposed opening in the middle for exposing the metal wire.