An orthodontic traction device for anterior tooth impaction and a display model containing the device
By designing the combination of L-shaped orthodontic rod and traction wire, the problem of difficulty in impaired orthodontic treatment and root stability of deep anterior teeth is solved, and the effect of reducing the difficulty of orthodontic treatment and improving the effect is achieved.
Patent Information
- Application Number
- CN202420532134.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-03-19
AI Technical Summary
In the prior art, when correcting deep anterior teeth, the operation is difficult and requires opening a gap in the alveolar bone, resulting in an increased risk of dislocation and affected root stability.
An L-shaped orthodontic rod is designed, including a connecting rod section and a pull rod section. The pull rod section is almost parallel to the long axis of the front teeth to be treated. Instead of the cutting end being exposed to the oral cavity, the rotational torque is applied by the traction wire to achieve the eruption of the teeth and avoid opening a gap in the alveolar bone.
It reduces the difficulty of correction of deep anterior teeth, improves the correction effect, avoids the adverse effects of the opening of the alveolar bone, and ensures the stability of the teeth.
Smart Images
Figure CN222723150U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of force-applying devices in orthodontics, and specifically relates to an orthodontic traction device for impacted anterior teeth and a display model containing the device. Background Art
[0002] Impacted teeth are a common disease in orthodontic clinic, especially the impaction of maxillary anterior teeth has a high incidence in the population; impacted teeth can cause dental arch deformity, thus affecting the normal function and appearance of the patient's oral and maxillofacial area, so the correction of impacted teeth is very necessary both for health and aesthetics.
[0003] At present, the most common correction method for impacted anterior teeth is traction. A traction wire is bonded to the incisor of the anterior tooth to be corrected, and the other end of the traction wire is fixed in the oral cavity, so that the traction wire generates a rotation torque to the anterior tooth to be corrected. By controlling the angle between the traction wire and the incisor of the anterior tooth to be corrected, the anterior tooth to be corrected is rotated with the incisor tip moving downward slowly around a point close to the root, thereby causing the anterior tooth to erupt. For impacted anterior teeth in a deeper position, such as Figure 1 As shown, the front tooth 1 to be corrected grows laterally toward the lingual side, and a notch 3 needs to be opened on the lingual alveolar bone 2 opposite to the front tooth 1 to be corrected, so that the incisor 11 of the front tooth 1 to be corrected is exposed to facilitate bonding of the traction wire 4 and to make way for the incisor 11 to rotate downward. If force is applied close to the tooth root, the front tooth 1 to be corrected will easily move horizontally, resulting in an increased risk of dislocation. However, opening the notch on the alveolar bone is not only difficult to operate, but also requires the removal of a large amount of alveolar bone opposite to the incisor of the front tooth to be corrected and below the incisor of the front tooth to be corrected, resulting in a large wound, which will also have an adverse effect on the subsequent stable support of the tooth root.
[0004] Therefore, it is necessary to design an orthodontic traction device for deep anterior impaction to reduce the difficulty of correction and improve the correction effect. Summary of the invention
[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide an orthodontic traction device for impacted anterior teeth, so as to solve the technical problem that the correction of deep-seated anterior teeth is difficult, thereby reducing the correction difficulty and improving the correction effect.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] An orthodontic traction device for impacted anterior teeth comprises a correction rod which is L-shaped and comprises a connecting rod section and a traction rod section which are vertically connected. The free end of the connecting rod section is used for connecting the teeth, and the free end of the traction rod section is connected to a traction assembly for providing traction force.
[0008] Furthermore, the correction rod is made of resin.
[0009] Furthermore, the orthodontic traction device for impacted anterior teeth also includes a plurality of replacement correction rods, and the length of the connecting rod section of each correction rod decreases gradually.
[0010] Furthermore, the traction assembly includes a fixed rod and a traction wire, one end of the traction wire is connected to the free end of the traction rod section, and the other end of the traction wire is connected to the fixed rod.
[0011] Furthermore, the free end of the connecting rod segment and both ends of the fixing rod are respectively provided with connecting bodies for connecting with teeth.
[0012] Furthermore, the connector is dental adhesive.
[0013] Furthermore, a circle of first connecting groove is opened in the middle of the fixing rod, and the other end of the traction wire is wound and connected in the first connecting groove.
[0014] Furthermore, a circle of second connecting groove is provided on the free end of the traction rod section, and one end of the traction steel wire is wound and connected in the second connecting groove.
[0015] The utility model also includes a display model, including an oral model and the orthodontic traction device for impacted front teeth as described above, wherein the oral model has front teeth to be corrected in an impacted state with the cutting ends facing the lingual side; the free ends of the connecting rod sections are vertically connected to the labial surfaces of the front teeth to be corrected exposed in the oral cavity, the free ends of the traction rod sections face the lingual side, the fixed rod is located on the labial side of the front teeth to be corrected, the two ends of the fixed rod are respectively connected to the labial surfaces of normal teeth on the left and right sides of the front teeth to be corrected, and the traction wire is in a tension state.
[0016] The utility model also includes another display model, including an oral model and the orthodontic traction device for impacted front teeth as described above, wherein the oral model has front teeth to be corrected in an impacted state with the cutting ends facing the labial side; the free ends of the connecting rod sections are vertically connected to the lingual surfaces of the front teeth to be corrected that are exposed in the oral cavity, the free ends of the traction rod sections face the labial side, the fixed rod is located on the lingual side of the front teeth to be corrected, the two ends of the fixed rod are respectively connected to the lingual surfaces of normal teeth on the left and right sides of the front teeth to be corrected, and the traction wire is in a tension state.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] 1. When the orthodontic traction device for impacted anterior teeth described in the utility model is used, an L-shaped correction rod is arranged in the oral cavity and connected to the anterior teeth to be corrected, and the traction rod section is nearly parallel to the long axis of the anterior teeth to be corrected, which is equivalent to exposing the free end of the traction rod section in the oral cavity instead of the incisal end of the anterior teeth to be corrected. The free end of the traction rod section is connected to a traction wire, and the other end of the traction wire is fixed in the oral cavity and tensioned, so that the traction wire generates a rotational torque to promote the eruption of the anterior teeth to be corrected. The anterior teeth to be corrected take a point close to the root as the rotation center, and slowly perform a rotational motion with the incisal end moving downward, thereby making the anterior teeth to be corrected erupt. When the orthodontic traction device for impacted anterior teeth described in the utility model is used for correction, there is no need to open an additional gap in the alveolar bone, which is not only conducive to reducing the difficulty of correcting deep anterior teeth impaction, but also will not affect the stability of the anterior teeth to be corrected after eruption, and can effectively improve the correction effect.
[0019] 2. The display model of the utility model is used to show the state of the orthodontic traction device for impacted anterior teeth installed in the oral cavity, so that people can more intuitively understand the process of correction using the orthodontic traction device and highlight the advantage that no additional gap needs to be opened in the alveolar bone for correction. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a side sectional view of the background technology that realizes traction and helping sprouting by opening a notch;
[0021] Figure 2 A front view of a display model of the orthodontic traction device in the embodiment;
[0022] Figure 3 A side sectional view of a display model containing the orthodontic traction device in the embodiment;
[0023] Figure 4 for Figure 3 The side section view of the anterior teeth to be corrected when they are slightly adjusted;
[0024] Figure 5 for Figure 3 The side section view of the anterior teeth to be corrected when they are greatly straightened;
[0025] Among them, there are the front teeth to be corrected 1, the cutting end 11, the alveolar bone 2, the gap 3, the traction wire 4, the correction rod 5, the connecting rod section 51, the traction rod section 52, the second connecting groove 521, the fixing rod 6, the first connecting groove 61, and the normal tooth 7. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.
[0027] Example:
[0028] See also Figure 2 and Figure 3 , an orthodontic traction device for impacted anterior teeth and a display model containing the device, the display model is the use state of the orthodontic traction device for impacted anterior teeth, in this embodiment, the oral model has an impacted anterior tooth to be corrected with the incisor facing the lingual side, the anterior tooth to be corrected is the maxillary anterior tooth, correspondingly, Figure 2 and Figure 3 Only the maxillary portion of the oral model is shown;
[0029] The orthodontic traction device for impacted anterior teeth includes a correction rod 5, which is L-shaped and includes a connecting rod section 51 and a traction rod section 52 that are vertically connected. The free end of the connecting rod section 51 is vertically connected to the labial surface of the anterior tooth 1 to be corrected that is exposed in the oral cavity. The free end of the traction rod section 52 extends toward the lingual side and is connected to one end of a traction wire 4. The other end of the traction wire 4 extends toward the labial side and is fixed in the oral cavity. The traction wire 4 is in a tension state and applies a rotational torque to the anterior tooth 1 to be corrected through the correction rod 5.
[0030] It can be understood that the utility model can also be used in the cases where the front teeth 1 to be corrected are maxillary front teeth with the cutting ends 11 facing the labial side, the front teeth 1 to be corrected are mandibular front teeth with the cutting ends 11 facing the labial side, and the front teeth 1 to be corrected are mandibular front teeth with the cutting ends 11 facing the lingual side. During implementation, only simple adjustments need to be made to the correction rod 5 and the traction wire 4. For example, when the front teeth 1 to be corrected are mandibular front teeth with the cutting ends 11 facing the labial side, the free end of the connecting rod segment 51 is vertically connected to the lingual surface of the front teeth 1 to be corrected exposed in the oral cavity, the free end of the traction rod segment 52 extends toward the labial side and is connected to one end of the traction wire 4, and the other end of the traction wire 4 extends toward the lingual side and is fixed in the oral cavity; the rest of the cases will not be elaborated here.
[0031] When the orthodontic traction device for impacted anterior teeth described in the utility model is used, an L-shaped correction rod 5 is arranged in the oral cavity and connected to the anterior teeth 1 to be corrected, the traction rod section 52 is nearly parallel to the long axis of the anterior teeth 1 to be corrected, which is equivalent to thickening the anterior teeth 1 to be corrected, and the free end of the traction rod section 52 replaces the incisal end 11 of the anterior teeth 1 to be corrected and is exposed in the oral cavity, and the free end of the traction rod section 52 is connected to the traction wire 4, and the other end of the traction wire 4 is fixed in the oral cavity and tensioned, so that the traction wire 4 generates a rotational torque to promote the eruption of the anterior teeth 1 to be corrected, and the anterior teeth 1 to be corrected take a point close to the root as the rotation center, and slowly perform a rotational motion with the incisal end 11 moving downward, thereby making the anterior teeth 1 to be corrected erupt; using the orthodontic traction device for impacted anterior teeth described in the utility model for correction, there is no need to open a notch 3 on the alveolar bone 2, which is not only conducive to reducing the difficulty of correcting deep anterior teeth impaction, but also will not affect the stability of the anterior teeth 1 to be corrected after eruption, and can effectively improve the correction effect.
[0032] In this embodiment, the correction rod 5 is made of resin, and the free end of the connecting rod segment 51 is bonded to the labial surface of the front tooth 1 to be corrected; the correction rod 5 made of resin can be 3D printed to flexibly adjust the length and thickness of the correction rod 5; before installation, the rotation center of the front tooth 1 to be corrected is determined according to the actual situation of the front tooth 1 to be corrected and the oral cavity, and the traction point is ensured to be below the rotation center and cannot be too far away from the support point, otherwise it may cause the front tooth 1 to be corrected to translate or rotate counterclockwise; during installation, force is applied to the correction rod 5 to tightly bond the free end of the connecting rod segment 51 to the labial surface of the front tooth 1 to be corrected, and the tooth neck of the front tooth 1 to be corrected is pressed into the cancellous bone; Figure 3 , Figure 4 and Figure 5 During the correction process, according to the rotation and restoration of the front teeth 1 to be corrected, the correction rod 5 can be removed, the length of the connecting rod segment 51 can be adjusted, or the connecting rod segment 51 can be directly replaced with a shorter correction rod 5, so that the traction rod segment 52 is closer to the labial surface of the front teeth 1 to be corrected, so as to better control the traction force and avoid the displacement of the front teeth 1 to be corrected while rotating back to the original position; after adjusting the length of the connecting rod segment 51 and reconnecting the free end of the connecting rod segment 51 to the labial surface of the front teeth 1 to be corrected, it is also necessary to adjust the length of the traction wire 4 accordingly, so that the traction wire 4 maintains a tension state to continuously apply a rotational torque to the front teeth 1 to be corrected.
[0033] See also Figure 2 and Figure 3 In this embodiment, the angle between the traction wire 4 and the traction rod section 52 is an acute angle, so that the other end of the traction wire 4 can be fixed to the upper jaw, so that the traction wire 4 can always maintain a tension state to play a role in traction and eruption, so as to shorten the correction period and reduce the impact on the oral and maxillofacial functions; specifically, a fixing rod 6 is horizontally provided on the labial side of the front tooth 1 to be corrected (same as above, when the front tooth 1 to be corrected is the mandibular front tooth and the incisal end 11 is facing the labial side, the fixing rod 6 should be located on the lingual side of the front tooth 1 to be corrected), and the two ends of the fixing rod 6 are respectively bonded and fixed to the labial surfaces of the normal teeth 7 on the left and right sides of the front tooth 1 to be corrected, and the other end of the traction wire 4 is connected to the fixing rod 6.
[0034] See also Figure 2 and Figure 3 In order to facilitate the connection of the traction wire 4 and prevent the traction wire 4 from sliding, a circle of first connecting groove 61 is opened on the fixing rod 6 opposite to the correction rod 5, and the other end of the traction wire 4 is wrapped and connected in the first connecting groove 61, and a circle of second connecting groove 521 is opened on the free end of the traction rod section 52, and one end of the traction wire 4 is wrapped and connected in the second connecting groove 521.
[0035] For the treatment of anterior impacted teeth, Figure 1As shown, the traditional method usually removes part of the alveolar bone to expose the incisal end, and applies traction at the incisal end to rotate the tooth clockwise. The traction applied should be as close to the incisal end as possible. The traction that causes the tooth to rotate clockwise is more effective. On the contrary, if the traction is applied close to the root, the rotation center of the tooth is close to the root, and the tooth may shift, resulting in an increased risk of tooth dislocation. After the traditional method removes part of the alveolar bone, the support of the alveolar bone to the tooth will be weakened, which will have an adverse effect on the stability of the tooth. The utility model adopts an L-shaped design of the connecting rod section and the traction rod section, and applies traction at the end of the traction rod section. The actual force point of the tooth is at the position connected to the connecting rod section. The rotation center of the tooth is close to the middle of the tooth, which is reflected in the direction of pressing into the alveolar bone, so that the tooth rotates clockwise in the alveolar bone. The correction process is minimally invasive, better retains the existing alveolar bone, and is more conducive to the stability of the teeth in the later stage.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.
Claims
1. An orthodontic traction device for anterior tooth impaction, characterized in that: The invention comprises an orthodontic rod, which is L-shaped and comprises a connecting rod section and a traction rod section which are vertically connected. The free end of the connecting rod section is used to connect the teeth, and the free end of the traction rod section is connected to a traction assembly for providing traction force. The traction assembly comprises a fixed rod and a traction wire, one end of the traction wire is connected to the free end of the traction rod section, and the other end of the traction wire is connected to the fixed rod.
2. An orthodontic traction device for impacted anterior teeth according to claim 1, characterized in that: The correction rod is made of resin.
3. The orthodontic traction device for impacted anterior teeth according to claim 1, characterized in that: The orthodontic traction device for impacted anterior teeth also includes a plurality of replacement correction rods, and the length of the connecting rod section of each correction rod decreases gradually.
4. The orthodontic traction device for impacted anterior teeth according to claim 1, characterized in that: The free end of the connecting rod section and the two ends of the fixing rod are respectively provided with connecting bodies for connecting with teeth.
5. An orthodontic traction device for impacted anterior teeth according to claim 4, characterized in that: The connector is dental adhesive.
6. The orthodontic traction device for impacted anterior teeth according to claim 1, characterized in that: A circle of first connecting groove is arranged in the middle of the fixing rod, and the other end of the traction steel wire is wound and connected in the first connecting groove.
7. The orthodontic traction device for impacted anterior teeth according to claim 1, characterized in that: A circle of second connecting groove is arranged on the free end of the traction rod section, and one end of the traction steel wire is wound and connected in the second connecting groove.
8. A display model, characterized in that: It comprises an oral model and an orthodontic traction device for impacted front teeth as described in any one of claims 4 to 7, wherein the oral model contains front teeth to be corrected which are in an impacted state and whose cutting ends are facing the lingual side; the free end of the connecting rod section is vertically connected to the labial surface of the front teeth to be corrected which is exposed in the oral cavity, the free end of the traction rod section is facing the lingual side, the fixed rod is located on the labial side of the front teeth to be corrected, the two ends of the fixed rod are respectively connected to the labial surfaces of normal teeth on the left and right sides of the front teeth to be corrected, and the traction wire is in a tension state.
9. A display model, characterized in that: It comprises an oral model and an orthodontic traction device for impacted front teeth as described in any one of claims 4 to 7, wherein the oral model contains front teeth to be corrected which are in an impacted state and whose cutting ends are facing the labial side; the free end of the connecting rod segment is vertically connected to the lingual surface of the front teeth to be corrected which is exposed in the oral cavity, the free end of the traction rod segment faces the labial side, the fixed rod is located on the lingual side of the front teeth to be corrected, the two ends of the fixed rod are respectively connected to the lingual surfaces of normal teeth on the left and right sides of the front teeth to be corrected, and the traction wire is in a tension state.