Molar appliance

Abstract

The utility model belongs to the technical field of molar correction, and provides a molar appliance which comprises a correction assembly, a slender rod piece, an anchoring assembly and a main thrust applying mechanism. Thrust can be applied to the correction ring by adjusting the fixing ring to enable the first elastic part to contract to generate counter-acting force, so that thrust is applied to the teeth to be corrected, the first elastic part continues to contract by adjusting the fixing ring to enable the counter-acting force generated by the first elastic part to be increased, and thrust applied to the teeth to be corrected can be increased. By adjusting the fixing ring to stretch the first elastic piece, the thrust applied to the to-be-corrected tooth can be reduced, the thrust applied to the to-be-corrected tooth can be conveniently adjusted, meanwhile, the to-be-corrected tooth moves backwards under the action of the thrust to gradually stretch the first elastic piece, and the first elastic piece stretches to gradually reduce the thrust applied to the to-be-corrected tooth, so that the to-be-corrected tooth can be conveniently corrected. Therefore, the remote movement distance of the to-be-corrected teeth is conveniently controlled, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of teeth grinding correction, in particular to a teeth grinding correction device. Background Art

[0002] Orthodontic treatment mainly uses various corrective devices to adjust the coordination between the facial bones, teeth, and maxillofacial nerves and muscles. In other words, it adjusts the abnormal relationship between the upper and lower jaws, between the upper and lower teeth, between the teeth and jaws, and between the nerves and muscles that connect them. The ultimate goal of orthodontic treatment is to achieve balance, stability, and beauty of the oral and maxillofacial system.

[0003] At present, when orthodontic treatment is performed on teeth to align the position of molars, molar distalization appliances are commonly used as correction methods. Most of the existing molar distalization appliances are traditional "pendulum appliances", which require regular (such as monthly) review and force application. However, the existing pendulum appliance structure is not convenient for adjusting the magnitude of the thrust applied to the molars, and the molar distalization distance is uncontrollable, which can easily lead to tooth elongation or buccal and lingual tilting, reducing the practicality of the device. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a molar correction device, which is convenient for adjusting the magnitude of the thrust applied to the molars and the control of the molar distal displacement distance, thereby improving the practicability of the device.

[0005] A molar correction appliance, comprising:

[0006] The correction assembly comprises a correction ring and an auxiliary ring, wherein the correction ring is installed on the teeth to be corrected, and the auxiliary ring is installed on the normal teeth;

[0007] A slender rod, arranged on the tongue side or the buccal side, comprising a first end and a second end opposite to each other, wherein the first end is connected to the auxiliary ring, and the second end is slidably connected to the correction ring;

[0008] An anchoring assembly connected to the first end portion, the anchoring assembly being used to be anchored on the gum; and

[0009] The main thrust applying mechanism includes a first elastic member and a fixing ring. The first elastic member is sleeved on the slender rod and one end thereof abuts against the correction ring. The other end of the first elastic member is adjustably mounted on the slender rod through the fixing ring so that the first elastic member can be extended and retracted to apply different thrusts to the correction ring.

[0010] The beneficial effects of the above-mentioned tooth grinding appliance are:

[0011] When in use, the correction ring is installed on the tooth to be corrected, the auxiliary ring is installed on the normal tooth and anchored to the gums through the anchoring assembly. When it is necessary to apply a thrust to the tooth to be corrected, the first elastic member is contracted by adjusting the fixing ring, and the reaction force generated by the contraction of the first elastic member can apply a thrust to the correction ring, thereby applying a thrust to the tooth to be corrected. When it is necessary to increase the thrust applied to the tooth to be corrected, the first elastic member is further contracted by adjusting the fixing ring. At this time, the reaction force generated by the contraction of the first elastic member increases, thereby increasing the thrust applied to the tooth to be corrected. Conversely, the first elastic member is stretched by adjusting the fixing ring. At this time, the reaction force generated by the stretching of the first elastic member is reduced, thereby reducing the thrust applied to the tooth to be corrected. It is convenient to adjust the size of the thrust applied to the tooth to be corrected. At the same time, after the tooth to be corrected moves backward under the action of the thrust, the first elastic member will gradually stretch. The stretching of the first elastic member gradually reduces the thrust applied to the tooth to be corrected, so that the tooth to be corrected no longer moves backward, thereby conveniently controlling the distance of the tooth to be corrected moving far away, thereby improving the practicality of the device.

[0012] In one embodiment, the anchor assembly includes a connecting rod; one end of the connecting rod is connected to the first end portion, and the other end of the connecting rod is provided with a gasket, and one end of the support nail can pass through the gasket to connect to the gum. The connecting rod can be fixed by passing one end of the support nail through the gasket to connect to the gum, and the slender rod and the auxiliary ring can be fixed by fixing the connecting rod, so as to prevent the auxiliary ring from being affected by the thrust force on the normal teeth.

[0013] In one embodiment, the main thrust applying mechanism further includes a friction member for fixing the fixing ring; the fixing ring is sleeved on the slender rod and abuts against the other end of the first elastic member, the friction member is arranged on the slender rod and is frictionally connected with the fixing ring, and the friction force between the fixing ring and the friction member is greater than the reaction force after the first elastic member contracts. The fixing ring can be driven to slide by applying an external force greater than the friction force with the friction member to the fixing ring, and the fixing ring can be fixed by the friction force with the friction member by canceling the external force applied to the fixing ring. It is convenient to drive the fixing ring to slide and fix it, and it is convenient to adjust it in the mouth and easy to use.

[0014] In one embodiment, the friction member is arranged on the circumference of the slender rod, and multiple groups are arranged at intervals along the axial direction thereof, the fixing ring is sleeved on the friction member, and the inner side of the fixing ring is frictionally connected with the friction member. By sliding the fixing ring so that the fixing ring is frictionally connected with the friction members at different positions, the fixing position of the fixing ring can be adjusted according to needs, thereby adjusting the magnitude of the thrust applied to the teeth to be corrected according to needs, and improving the accuracy of the thrust applied to the teeth to be corrected.

[0015] In one embodiment, an auxiliary thrust applying mechanism is further included, one end of which is connected to the auxiliary ring and the other end is slidably connected to the correction ring, and the auxiliary ring and the correction ring are located between the main thrust applying mechanism and the auxiliary thrust applying mechanism, and the auxiliary thrust applying mechanism is used to apply a constant thrust to the correction ring. By providing the auxiliary thrust applying mechanism to apply a constant thrust to the correction ring, the balance of the correction ring under thrust can be improved.

[0016] In one embodiment, the main thrust applying mechanism is arranged on the tongue side, and the auxiliary thrust applying mechanism is arranged on the buccal side, so as to facilitate adjustment according to the needs of the patient and improve the practicality of the device.

[0017] In one embodiment, the main thrust applying mechanism is arranged on the buccal side, and the auxiliary thrust applying mechanism is arranged on the lingual side, so as to facilitate adjustment according to the needs of the patient and improve the practicality of the device.

[0018] In one embodiment, the auxiliary thrust applying mechanism includes an auxiliary rod and a second elastic member; one end of the auxiliary rod is connected to the auxiliary ring, and the other end is slidably connected to the correction ring; the second elastic member is sleeved on the auxiliary rod, and the two ends of the second elastic member respectively abut against the auxiliary ring and the correction ring. The reaction force of the expansion and contraction of the second elastic member can apply a constant thrust to the correction ring, which is convenient for applying a constant thrust to the correction ring.

[0019] In one embodiment, the ends of the slender rod and the auxiliary rod away from the auxiliary ring are both provided with limiting members, and the limiting members can abut against the correction ring, so as to prevent the correction ring from slipping off the slender rod and the auxiliary rod when sliding along the slender rod and the auxiliary rod, and facilitate the sliding of the correction ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a molar appliance provided by an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of a molar appliance in use;

[0023] Figure 3 for Figure 1 An exploded view of a molar appliance is shown;

[0024] Figure 4 for Figure 1A schematic three-dimensional structure diagram of another embodiment of a molar appliance is shown.

[0025] Reference numerals:

[0026] 10. Corrective ring;

[0027] 20. Auxiliary ring;

[0028] 30. Slender rods;

[0029] 40. Anchor assembly; 401. Connecting rod; 402. Gasket;

[0030] 50. Main thrust applying mechanism; 501. First elastic member; 502. Friction member; 503. Fixed ring;

[0031] 60. Auxiliary thrust applying mechanism; 601. Auxiliary rod; 602. Second elastic member;

[0032] 70. Limiting parts. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0034] See also Figure 1 In one embodiment, a molar orthodontic appliance includes a correction component, a slender rod 30, an anchoring component 40 and a main thrust applying mechanism 50.

[0035] The correction assembly includes a correction ring 10 and an auxiliary ring 20. The correction ring 10 is installed on the teeth to be corrected, and the auxiliary ring 20 is installed on the normal teeth. The slender rod 30 is arranged on the tongue side or the buccal side, and includes a first end and a second end opposite to each other. The first end is connected to the auxiliary ring 20, and the second end is slidably connected to the correction ring 10. Specifically, a first connecting sleeve is arranged on the circumference of the correction ring 10, and the first connecting sleeve is sleeved on the slender rod 30.

[0036] In the above embodiment, the correction ring 10 is slid along the slender rod 30 to facilitate adjustment according to the distance between the patient's teeth to be corrected and the normal teeth, so that the correction ring 10 is conveniently installed on the teeth to be corrected and the auxiliary ring 20 is conveniently installed on the normal teeth. It can be understood that when the slender rod 30 is arranged on the tongue side, it is used for lingual molar correction, which can reduce the foreign body sensation on the buccal side. When the slender rod 30 is arranged on the buccal side, it is used for buccal molar correction, which can reduce the foreign body sensation on the lingual side. It is convenient to adjust according to the patient's needs and improve the practicality of the device.

[0037] See also Figure 1In one embodiment, the anchor assembly 40 is connected to the first end, and the anchor assembly 40 is used to anchor on the gum. Specifically, the anchor assembly 40 includes a connecting rod 401. One end of the connecting rod 401 is connected to the first end, and the other end of the connecting rod 401 is provided with a gasket 402, and one end of the anchor nail can pass through the gasket 402 to connect to the gum.

[0038] In the above embodiment, the connecting rod 401 can be fixed by passing one end of the support nail (not shown) through the gasket 402 and connecting it to the gums. The fixing of the connecting rod 401 can fix the slender rod 30 and the auxiliary ring 20, thereby preventing the auxiliary ring 20 from being affected by the thrust force on the normal teeth. Specifically in this embodiment, the connecting rod 401 is welded to the first end, and the connection is stable and reliable. At the same time, the angle of the connecting rod 401 can be adjusted before the connecting rod 401 is welded to the first end, thereby adjusting the fixing angle of the slender rod 30, so that the device can be used for scenes such as molar tilt, insufficient tooth eruption space, and excessive molar eruption, further improving the practicality of the device.

[0039] See also Figures 1 to 3 In one embodiment, the main thrust applying mechanism 50 includes a first elastic member 501 and a fixing ring 503. The first elastic member 501 is sleeved on the slender rod 30, and one end thereof abuts against the correction ring 10. The other end of the first elastic member 501 is adjustably mounted on the slender rod 30 through the fixing ring 503, so that the first elastic member 501 can be extended and retracted to apply different thrusts to the correction ring 10.

[0040] Specifically, the main thrust applying mechanism 50 also includes a friction member 502 for fixing a fixing ring 503; the fixing ring 503 is sleeved on the slender rod 30 and abuts against the other end of the first elastic member 501, the friction member 502 is arranged on the slender rod 30 and is frictionally connected with the fixing ring 503, and the friction force between the fixing ring 503 and the friction member 502 is greater than the reaction force after the first elastic member 501 contracts.

[0041] In the above embodiment, when it is necessary to apply a thrust to the tooth to be corrected, the fixing ring 503 can be driven to slide by applying an external force greater than the friction force with the friction member 502 to the fixing ring 503. When the fixing ring 503 slides and causes the first elastic member 501 to contract, the reaction force generated by the contraction of the first elastic member 501 can apply a thrust to the correction ring 10, thereby applying a thrust to the tooth to be corrected. When the thrust applied to the tooth to be corrected is appropriate, the external force applied to the fixing ring 503 is canceled. At this time, the friction force between the fixing ring 503 and the friction member 502 can fix the fixing ring 503, thereby fixing the thrust applied to the tooth to be corrected. When it is necessary to increase the thrust applied to the tooth to be corrected, the fixing ring 503 is continuously driven to slide to cause the first elastic member 501 to continue to contract. At this time, the first elastic member 501 can be increased. 01 The reaction force generated by the contraction increases the thrust applied to the tooth to be corrected. When it is necessary to reduce the thrust applied to the tooth to be corrected, the first elastic member 501 is stretched by driving the fixing ring 503 to slide in the opposite direction. The stretching of the first elastic member 501 can reduce the reaction force of the first elastic member 501, thereby reducing the thrust applied to the tooth to be corrected. It is convenient to adjust the size of the thrust applied to the tooth to be corrected, and it is only necessary to drive the fixing ring 503 to move. There is no need to disassemble the device for adjustment, which is convenient for adjustment in the mouth. At the same time, after the tooth to be corrected is moved backward by the thrust, the first elastic member 501 will gradually stretch. The stretching of the first elastic member 501 gradually reduces the thrust applied to the tooth to be corrected, so that the tooth to be corrected no longer moves backward, thereby conveniently controlling the distance of the tooth to be corrected moving far away, thereby improving the practicality of the device.

[0042] Specifically in the above embodiment, the first elastic member 501 is a spring, and the friction member 502 is a convex ring or particles or corrugations.

[0043] On the basis of the above embodiment, further, the friction member 502 is arranged on the circumference of the slender rod 30, and multiple groups are arranged at intervals along the axial direction thereof, and the fixing ring 503 is sleeved on the friction member 502, and the inner side of the fixing ring 503 is frictionally connected with the friction member 502. By arranging multiple groups of friction members 502 at intervals, when the fixing ring 503 slides and frictionally connects with the friction members 502 at different positions, the fixing ring 503 can be fixed at different positions, so as to facilitate the adjustment of the contraction degree of the first elastic member 501 according to the demand, so as to adjust the magnitude of the thrust applied to the teeth to be corrected, thereby improving the accuracy of the thrust applied to the teeth to be corrected.

[0044] See also Figure 1 , Figure 4 In one embodiment, it also includes an auxiliary thrust applying mechanism 60, one end of the auxiliary thrust applying mechanism 60 is connected to the auxiliary ring 20, and the other end is slidably connected to the correction ring 10, and the auxiliary ring 20 and the correction ring 10 are located between the main thrust applying mechanism 50 and the auxiliary thrust applying mechanism 60, and the auxiliary thrust applying mechanism 60 is used to apply a constant thrust to the correction ring 10.

[0045] Specifically, the auxiliary thrust applying mechanism 60 includes an auxiliary rod 601 and a second elastic member 602; one end of the auxiliary rod 601 is connected to the auxiliary ring 20, and the other end is slidably connected to the correction ring 10, and the second elastic member 602 is sleeved on the auxiliary rod 601, and the two ends respectively abut against the auxiliary ring 20 and the correction ring 10. Furthermore, a second connecting sleeve is provided on the peripheral side of the correction ring 10, and the second connecting sleeve is sleeved on the auxiliary rod 601.

[0046] In the above embodiment, the second elastic member 602 applies a constant thrust to the correction ring 10 to improve the balance of the thrust on the correction ring 10, thereby avoiding the phenomenon that the correction ring 10 is subjected to an unbalanced force and causes the teeth to be corrected to tilt and move. Specifically in the above embodiment, the second elastic member 602 is a spring.

[0047] On the basis of the above embodiment, further, the main thrust applying mechanism 50 is arranged on the tongue side, and the auxiliary thrust applying mechanism 60 is arranged on the buccal side. The main thrust applying mechanism 50 is arranged on the buccal side, and the auxiliary thrust applying mechanism 60 is arranged on the tongue side. It is convenient to select tongue correction or buccal correction according to the needs of the patient, thereby improving the application range of the device.

[0048] On the basis of the above embodiment, further, the ends of the slender rod 30 and the auxiliary rod 601 away from the auxiliary ring 20 are both provided with a limiter 70, and the limiter 70 can abut against the correction ring 10. Specifically in this embodiment, the limiter 70 is a sphere. By providing the limiter 70, when the correction ring 10 slides along the slender rod 30 and the auxiliary rod 601, the correction ring 10 can be prevented from slipping off the slender rod 30 and the auxiliary rod 601.

[0049] The specific implementation of the above-mentioned tooth molar appliance is as follows:

[0050] First, the correction ring 10 is installed on the teeth to be corrected and the auxiliary ring 20 is installed on the normal teeth. Then, one end of the support pin is passed through the pad ring 402 to connect to the gums, thereby fixing the slender rod 30 and the auxiliary ring 20 to prevent the auxiliary ring 20 from being affected by the thrust on the normal teeth.

[0051] Then, the fixing ring 503 can be driven to slide by applying an external force greater than the friction force with the friction member 502 to the fixing ring 503. When the fixing ring 503 slides and causes the first elastic member 501 to contract, the reaction force generated by the contraction of the first elastic member 501 can apply a thrust to the correction ring 10, thereby applying a thrust to the tooth to be corrected. When the fixing ring 503 slides to the friction connection with the friction member 502 at the specified position, the external force applied to the fixing ring 503 is cancelled and the fixing ring 503 can be fixed to the specified position, thereby fixing the thrust applied to the tooth to be corrected, making it convenient to apply a thrust to the tooth to be corrected.

[0052] When it is necessary to increase the thrust applied to the tooth to be corrected, the first elastic member 501 continues to shrink by continuing to drive the fixing ring 503 to slide. At this time, the reaction force generated by the shrinkage of the first elastic member 501 can be increased, thereby increasing the thrust applied to the tooth to be corrected. When it is necessary to reduce the thrust applied to the tooth to be corrected, the first elastic member 501 is stretched by driving the fixing ring 503 to slide in the opposite direction. The stretching of the first elastic member 501 can reduce the reaction force of the first elastic member 501, thereby reducing the thrust applied to the tooth to be corrected. It is convenient to adjust the size of the thrust applied to the tooth to be corrected, and it is only necessary to drive the fixing ring 503 to move. There is no need to disassemble the device for adjustment, which is convenient for adjustment in the mouth. At the same time, after the tooth to be corrected is moved backward by the thrust, the first elastic member 501 will gradually stretch. The stretching of the first elastic member 501 gradually reduces the thrust applied to the tooth to be corrected, so that the tooth to be corrected no longer moves backward, thereby conveniently controlling the distance of the tooth to be corrected moving far away, thereby improving the practicality of the device.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A molar orthodontic appliance, characterized in that: include: A correction assembly comprises a correction ring (10) and an auxiliary ring (20), wherein the correction ring (10) is installed on a tooth to be corrected, and the auxiliary ring (20) is installed on a normal tooth; A slender rod (30) is arranged on the tongue side or the buccal side, and comprises a first end and a second end opposite to each other, wherein the first end is connected to the auxiliary ring (20), and the second end is slidably connected to the correction ring (10); An anchoring assembly (40), connected to the first end, the anchoring assembly (40) being used for anchoring on the gum; and The main thrust applying mechanism (50) comprises a first elastic member (501) and a fixing ring (503), wherein the first elastic member (501) is sleeved on the slender rod (30) and one end of the first elastic member (501) is in contact with the correction ring (10), and the other end of the first elastic member (501) is adjustably mounted on the slender rod (30) through the fixing ring (503), so that the first elastic member (501) can be extended and retracted to apply different thrusts to the correction ring (10); The anchoring assembly (40) comprises a connecting rod (401); one end of the connecting rod (401) is connected to the first end portion, and the other end of the connecting rod (401) is provided with a gasket (402), and one end of the anchoring nail can pass through the gasket (402) to be connected to the gums.

2. A molar appliance according to claim 1, characterized in that: The main thrust applying mechanism (50) further comprises a friction member (502) for fixing the fixing ring (503); the fixing ring (503) is sleeved on the slender rod (30) and abuts against the other end of the first elastic member (501); the friction member (502) is arranged on the slender rod (30) and is frictionally connected to the fixing ring (503); the friction force between the fixing ring (503) and the friction member (502) is greater than the reaction force after the first elastic member (501) contracts.

3. A molar appliance according to claim 2, characterized in that: The friction member (502) is arranged on the circumferential side of the slender rod (30), and multiple groups are arranged at intervals along the axial direction thereof. The fixing ring (503) is sleeved on the friction member (502), and the inner side of the fixing ring (503) is frictionally connected to the friction member (502).

4. A molar appliance according to claim 1, characterized in that: The invention also comprises an auxiliary thrust applying mechanism (60), one end of which is connected to the auxiliary ring (20), and the other end of which is slidably connected to the correction ring (10), and the auxiliary ring (20) and the correction ring (10) are located between the main thrust applying mechanism (50) and the auxiliary thrust applying mechanism (60), and the auxiliary thrust applying mechanism (60) is used to apply a constant thrust to the correction ring (10).

5. A molar appliance according to claim 4, characterized in that: The main thrust applying mechanism (50) is arranged on the tongue side, and the auxiliary thrust applying mechanism (60) is arranged on the buccal side.

6. A molar appliance according to claim 4, characterized in that: The main thrust applying mechanism (50) is arranged on the buccal side, and the auxiliary thrust applying mechanism (60) is arranged on the tongue side.

7. A molar appliance according to claim 4, characterized in that: The auxiliary thrust applying mechanism (60) comprises an auxiliary rod (601) and a second elastic member (602); one end of the auxiliary rod (601) is connected to the auxiliary ring (20), and the other end is slidably connected to the correction ring (10); the second elastic member (602) is sleeved on the auxiliary rod (601), and the two ends thereof respectively abut against the auxiliary ring (20) and the correction ring (10).

8. A molar appliance according to claim 7, characterized in that: The ends of the slender rod (30) and the auxiliary rod (601) away from the auxiliary ring (20) are both provided with limiting members (70), and the limiting members (70) can abut against the correction ring (10).

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