Correcting appliance capable of controlling vertical height
By setting a fixed block and a sleeve with less hardness on the body of the corrector, the surface contact between the corrector and the outer arch of the oral is achieved, solving the problem of wear and deformation of the invisible corrector and improving the correction effect and patient comfort.
Patent Information
- Application Number
- CN202422269808.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The traction between the existing bracketless invisible orthodontic arch and the traction of the outer oral arch is mainly through linear contact, resulting in wear and deformation of the invisible orthodontic device, affecting the correction effect and increasing the cost of consumables.
A remedy device that controls vertical height is designed. By setting a fixed block protruding toward the outer wall on the remedial body, and covering the arch foot with a smaller hardness is used. The sleeve fits with the outer wall of the remedial body to form surface contact to reduce wear and deformation, the traction force of the remedial body acts on the remedial body more evenly.
It reduces wear and deformation of the body of the corrector, improves the reliability of the correction effect, and maintains the comfort of the patient.
Smart Images
Figure CN223248333U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dental correction equipment, in particular to a correction device for controlling vertical height. Background Art
[0002] Traditional maxillary orthodontic appliances mostly use metal brackets and archwires, which have problems such as poor aesthetics and low comfort, affecting the quality of life of patients.
[0003] Bracketless invisible braces are mainly made of elastic and transparent polymer materials. They are basically completely invisible when worn on the teeth, and the tooth correction process is relatively comfortable and convenient, so they are becoming more and more popular among patients.
[0004] However, the traction between the existing bracketless invisible braces and the extraoral bow is mainly achieved by directly inserting the extraoral bow into the hole structure on the invisible braces. The two are often in line contact with a small contact area, which can easily cause wear and deformation of the invisible braces, increase the cost of consumables, and affect the correction effect. Utility Model Content
[0005] The technical problem to be solved by the present invention is to provide a brace that controls the vertical height, thereby reducing the wear and deformation of the brace body and improving the reliability of the correction effect.
[0006] In order to solve the above technical problems, the utility model provides an orthodontic appliance for controlling vertical height, comprising an orthodontic appliance body and an extraoral bow traction device, wherein the extraoral bow traction device comprises an arch body and a sleeve, wherein the hardness of the sleeve is less than that of the arch body, the arch body is provided with an arch foot, and the sleeve covers the end of the arch foot;
[0007] The appliance body is provided with a fixing block protruding toward the outer wall, the fixing block and the outer wall of the appliance body form a first connecting hole, the first connecting hole is opened toward the maxillary incisors, and the first connecting hole is adapted to the sleeve;
[0008] The sleeve is provided with a first plane and a second plane, the second plane intersects with the top of the first plane, the sleeve is inserted into the first connecting hole, and the first plane is in contact with the outer wall of the orthodontic appliance body.
[0009] As an improvement of the above solution, the hardness of the fixing block is ≤ the hardness of the sleeve ≤ the hardness of the bow body.
[0010] As an improvement to the above solution, one end of the sleeve is closed.
[0011] As an improvement to the above solution, the first connecting hole passes through both ends of the fixing block.
[0012] As an improvement to the above solution, the areas of the first connecting holes are equal at all locations, and the length of the fixing block is smaller than the length of the sleeve.
[0013] As an improvement of the above solution, the bow body is further provided with a traction hook, and the bow foot is provided with a connecting section, a conical transition section and a traction section, the cross-sectional area of the conical transition section gradually decreases from the traction section to the connecting section, the sleeve is covered on the connecting section, and the traction section is connected to the traction hook.
[0014] As an improvement to the above solution, the sleeve is provided with a second connecting hole for inserting the connecting section, and the first connecting hole, the second connecting hole, and the cross section of the connecting section are similar shapes.
[0015] As an improvement to the above solution, the angle between the first plane and the second plane is 90-135°.
[0016] As an improvement to the above solution, a plurality of alveolar units are provided on the orthodontic appliance body, and the fixing block is located at a position on the orthodontic appliance body that is 3 to 5 alveolar units away from the maxillary incisor on that side.
[0017] As an improvement to the above solution, the fixing block is formed on the orthodontic appliance body, and the orthodontic appliance body is made of silicone or rubber material;
[0018] The bow body is an integrated structure.
[0019] The implementation of this utility model has the following beneficial effects:
[0020] The utility model discloses an orthodontic appliance for controlling the vertical height. By arranging a fixing block protruding toward the outer wall on the orthodontic appliance body, the fixing block and the outer wall of the orthodontic appliance body form a first connecting hole, the hole wall of the first connecting hole is tangent to the outer wall of the orthodontic appliance body, and the arch foot covered with a sleeve extends into the first connecting hole. On the one hand, the sleeve with smaller hardness on the arch foot avoids direct wear between the arch foot and the orthodontic appliance body with a larger hardness difference; on the other hand, the first plane of the sleeve fits the outer wall of the orthodontic appliance body, and the second plane intersects with the top of the first plane, so that the traction force of the arch body can act more evenly on the outer wall of the orthodontic appliance body and the fixing block, helping to reduce stress and the deformation caused by it, and can more accurately control the vertical change of the maxillary bone, and the correction effect is more reliable; in addition, because the arch foot is closer to the outer wall of the orthodontic appliance body, the pulling between the arch foot and the fixing block is reduced, which helps to reduce the deformation of the first connecting hole, and the traction force of the arch body acts more directly on the orthodontic appliance body, making the correction effect more significant;
[0021] The orthodontic appliance body of the present invention is made of a relatively soft silicone rubber material, ensuring the comfort of the patient during the correction process. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic structural diagram of a first embodiment of a vertical height control appliance of the present invention;
[0023] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of part A;
[0024] Figure 3 yes Figure 2 BB cross-sectional structure diagram when the angle between the first plane and the second plane on the sleeve is 90°;
[0025] Figure 4 yes Figure 3 Schematic diagram of the structure of the fixed block;
[0026] Figure 5 yes Figure 2 BB cross-sectional structure schematic diagram when the included angle between the first plane and the second plane on the sleeve is 120°;
[0027] Figure 6 yes Figure 5 Schematic diagram of the structure of the fixed block. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.
[0029] like Figures 1 to 4 As shown, the utility model discloses an embodiment of a brace for controlling vertical height, comprising a brace body 1 and an extraoral bow traction device 2, wherein the extraoral bow traction device 2 comprises a bow body 21 and a sleeve 22, the hardness of the sleeve 22 being less than that of the bow body 21, the bow body 21 being provided with a bow foot 211, and the sleeve 22 being covered over the end of the bow foot 211; the brace body 1 is provided with a fixing block 11 protruding toward the outer wall, the fixing block 11 and the outer wall of the brace body 1 forming a first connecting hole 12 adapted to the sleeve 22, that is, the hole wall of the first connecting hole 12 is tangent to the outer wall of the brace body 1, and the first connecting hole 12 is opened toward the maxillary incisor; the sleeve 22 is provided with a first plane 221 and a second plane 222, the second plane 222 intersects with the top of the first plane 221, the sleeve 22 is inserted into the first connecting hole 12, and the first plane 221 is in contact with the outer wall of the brace body 1.
[0030] In this embodiment, a fixing block 11 protruding toward the outer wall is provided on the orthodontic appliance body 1, and the fixing block 11 and the outer wall of the orthodontic appliance body 1 form a first connecting hole 12. The hole wall of the first connecting hole 12 is tangent to the outer wall of the orthodontic appliance body 1, and the arch foot 211 covered with the sleeve 22 extends into the first connecting hole 12. On the one hand, the sleeve 22 with smaller hardness on the arch foot 211 avoids direct wear between the arch foot 211 and the orthodontic appliance body 1 with a larger hardness difference; on the other hand, the first plane 221 of the sleeve 22 fits with the outer wall of the orthodontic appliance body 1, and the first plane 221 of the sleeve 22 fits with the outer wall of the orthodontic appliance body 1. The second plane 222 intersects with the top of the first plane 221, and the traction force of the arch body 21 can act more evenly on the outer wall of the orthodontic body 1 and the fixed block 11, helping to reduce stress and the deformation caused by it, and can more accurately control the vertical changes of the maxilla, and the correction effect is more reliable; in addition, because the arch foot 211 is closer to the outer wall of the orthodontic body 1, the pull between the arch foot 211 and the fixed block 11 is reduced, which helps to reduce the deformation of the first connecting hole 12, and the traction force of the arch body 21 acts more directly on the orthodontic body 1, making the correction effect more significant.
[0031] Specifically, the orthodontic appliance body 1 of this embodiment is made of silicone or rubber material, and the fixing block 11 is integrally molded on the orthodontic appliance body 1; the sleeve 22 is made of a hard resin or other material with a hardness slightly greater than that of silicone rubber, and the bow body 21 is an integrated structure, and is made of metal or alloy such as stainless steel, so that the relationship between the fixing block 11, the sleeve 22 and the bow body 21 satisfies the hardness of the fixing block 11 ≤ the hardness of the sleeve 22 ≤ the hardness of the bow body 21.
[0032] The appliance body 1 of this embodiment can be manufactured using 3D printing technology. The appliance body 1 of this embodiment is provided with a plurality of alveolar units for intraoral retention, and the fixing block 11 is positioned on the appliance body 1 at a distance of 3 to 5 alveolar units from the maxillary incisor on that side.
[0033] The bow body 21 of this embodiment also includes a traction hook 212 disposed outside the opening. The bow body 21 of this embodiment can be manufactured using 3D printing technology. The bow foot 211 specifically comprises a connecting section a, a tapered transition section b, and a traction section c. The tapered transition section b gradually decreases in cross-sectional area from the traction section c to the connecting section a. The sleeve 22 covers the connecting section a, and the traction section c is connected to the traction hook 212.
[0034] One end of the sleeve 22 of this embodiment is closed, which can ensure that the sleeve 22 does not shift when the bow leg 211 is inserted into the first connecting hole 12.
[0035] In order to facilitate the insertion of the sleeve 22 into the first connecting hole 12 together with the bow leg 211 , lubricating oil can be applied to the closed end of the sleeve 22 to facilitate the insertion of the sleeve 22 into the first connecting hole 12 .
[0036] In this embodiment, the first connecting hole 12 is preferably set to pass through both ends of the fixing block 11, so as to adjust the length of the arch angle inserted into the first connecting hole 12 according to the shape and size of the patient's jaw, so as to adapt to patients with different face shapes.
[0037] In this embodiment, the first connecting hole 12 is configured to have equal areas at all locations, and the length of the fixing block 11 is smaller than the length of the sleeve 22, so as to more flexibly adjust the length of the arch angle inserted into the first connecting hole 12 according to the patient's jaw shape and size.
[0038] The sleeve 22 is provided with a second connecting hole for inserting the connecting section a. The first connecting hole 12, the second connecting hole, and the cross section of the connecting section a are preferably arranged in similar shapes. That is, the arch foot 211 and the sleeve 22, and the sleeve 22 and the orthodontic appliance body 1 are in surface contact, which can reduce the pulling deformation between them. The angle between the first plane 221 and the second plane 222 is preferably 90 to 135 degrees. Figure 3 and Figure 4 The included angle between the first plane 221 and the second plane 222 of the sleeve 22 is 90°. Figure 5 and Figure 6 The angle between the first plane 221 and the second plane 222 of the sleeve 22 is 120°. This angle further reduces the pulling and deformation of the fixing block 11 away from the appliance body 1 when the appliance body 1 is subjected to an upward traction force, thereby helping to achieve the desired correction effect in the vertical direction.
[0039] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.
Claims
1. A vertical height control appliance, characterized in that: The device comprises an appliance body and an extraoral bow traction device, wherein the extraoral bow traction device comprises a bow body and a sleeve, wherein the hardness of the sleeve is less than that of the bow body, the bow body is provided with a bow foot, and the sleeve covers the end of the bow foot; The appliance body is provided with a fixing block protruding toward the outer wall, the fixing block and the outer wall of the appliance body form a first connecting hole, the first connecting hole is opened toward the maxillary incisors, and the first connecting hole is adapted to the sleeve; The sleeve is provided with a first plane and a second plane, the second plane intersects with the top of the first plane, the sleeve is inserted into the first connecting hole, and the first plane is in contact with the outer wall of the orthodontic appliance body.
2. The vertical height control appliance according to claim 1, characterized in that: The hardness of the fixing block is ≤ the hardness of the sleeve ≤ the hardness of the bow body.
3. The vertical height control appliance according to claim 1 or 2, characterized in that: One end of the sleeve is closed.
4. The appliance for controlling vertical height according to claim 1, characterized in that: The first connecting hole passes through both ends of the fixing block.
5. The vertical height control appliance according to claim 1, characterized in that: The areas of the first connecting holes are equal at all locations, and the length of the fixing block is smaller than the length of the sleeve.
6. The vertical height control appliance according to claim 1, characterized in that: The bow body is also provided with a traction hook, and the bow foot is provided with a connecting section, a tapered transition section and a traction section. The cross-sectional area of the tapered transition section gradually decreases from the traction section to the connecting section. The sleeve is covered on the connecting section, and the traction section is connected to the traction hook.
7. The appliance for controlling vertical height according to claim 6, characterized in that: The sleeve is provided with a second connecting hole for inserting the connecting section, and the first connecting hole, the second connecting hole, and the cross section of the connecting section are similar shapes.
8. The vertical height control appliance according to claim 1, characterized in that: The included angle between the first plane and the second plane is 90-135°.
9. The vertical height control appliance according to claim 1, characterized in that: The appliance body is provided with a plurality of alveolar units, and the fixing block is located at the position of the appliance body and is spaced 3 to 5 alveolar units away from the maxillary incisor on that side.
10. The vertical height control appliance according to claim 1, characterized in that: The bow body is an integrated structure; The fixing block is formed on the orthodontic appliance body, and the orthodontic appliance body is made of silicone or rubber material.