Non-terminal molar depression device for sagittal space loss

Abstract

The utility model belongs to the technical field of orthodontic equipment, and particularly relates to a non-terminal molar indentation device for sagittal space loss. The first belt ring and the second belt ring in the sagittal space loss non-tail-end molar indentation device can be arranged on adjacent teeth at the front end and the rear end of a non-tail-end extension molar in a sleeving mode respectively, the first belt ring and the second belt ring are pushed through the reset piece, and the adjacent teeth at the rear end of the non-tail-end extension molar can be pushed in the direction away from the non-tail-end extension molar; meanwhile, the pressing rubber bands hung on the two pressing traction hooks on the first band ring can be used for pressing the non-tail-end extension molars, so that the non-tail-end extension molars can be recovered to recover the sagittal space of the non-tail-end extension molars; according to the non-tail-end molar depressing device with the lost sagittal space, the combined operation of recovering the sagittal space and depressing the non-tail-end extension molar can be completed without replacing the appliance during treatment, so that the operation of depressing the non-tail-end extension molar is simplified, and the depressing of the non-tail-end extension molar is more convenient and efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of teeth correction equipment, and particularly relates to a non-terminal molar intrusion device with sagittal space loss. Background Art

[0002] After a molar is missing for a long time, the opposing molar will elongate in the direction of the missing tooth, resulting in insufficient implantation space for the missing tooth. If implantation of the missing tooth is required, the elongated molar needs to be pushed down to obtain sufficient implantation space for the missing tooth.

[0003] However, after the non-terminal molar is elongated, the mesial movement of the posterior teeth will squeeze the sagittal space of the non-terminal elongated molar, making the sagittal space that can accommodate the non-terminal elongated molar insufficient, resulting in the inability to depress the non-terminal elongated molar. Therefore, before depressing the non-terminal elongated molar, the sagittal space of the non-terminal elongated molar needs to be restored first.

[0004] The above-mentioned restoration of sagittal space and conversion of depression process cannot be completed by a single appliance in the current treatment method. It can only be achieved by bonding partial brackets on the adjacent teeth (front teeth and rear teeth) of the non-terminal elongated molars for partial alignment, and then using push springs to move the rear teeth of the non-terminal elongated molars distally to obtain sufficient sagittal space.

[0005] Then, one micro-implant anchorage is implanted on the buccal and lingual sides of the front teeth of the non-terminal elongated molars, or the brackets on the front teeth are replaced with a depression device with a traction hook as a fulcrum, and the two ends of the chain rubber band are hung on the fulcrum, and the middle part of the rubber band is made to cross the occlusal surface of the non-terminal elongated molar to gradually depress the non-terminal elongated molar.

[0006] The above methods generally have the following disadvantages:

[0007] 1) During the bonding of partial brackets, the use of archwires for partial alignment may change the occlusion and cause occlusal discomfort;

[0008] 2) The implantation of micro-implant support is an invasive procedure, which some patients cannot accept;

[0009] 3) If the patient has insufficient interapical space or low bone density, micro-implant anchorage may fail;

[0010] 4) The process of removing the bracket and replacing the depression device is cumbersome. Therefore, providing a non-terminal molar depression device that can shorten and simplify the depression process is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0011] The utility model provides a non-terminal molar depression device with lost sagittal space, so as to solve the technical problem in the prior art that the recovery of the sagittal space during the depression of the non-terminal elongated molar and the conversion of the depression process cannot be completed by a single orthodontic appliance, resulting in an extremely cumbersome operation of the non-terminal elongated molar depression.

[0012] The utility model is realized by the following technical solutions:

[0013] A non-terminal molar depression device with sagittal space loss, used for depression correction of non-terminal elongated molars, comprising a first band ring, a second band ring, a resetting piece and a depression rubber band;

[0014] The first band ring and the second band ring can be respectively mounted on the adjacent teeth at the front and rear ends of the molar to be corrected, and the lingual side and the buccal side of the first band ring are both provided with depression hooks, and the movable ends of the two depression hooks are respectively located on the lingual side and the buccal side of the molar to be corrected, and the movable ends of the two depression hooks are both extended to the middle position of the first band ring and the second band ring;

[0015] The two ends of the resetting member are respectively connected to the buccal side of the first band ring and the buccal side of the second band ring, and the resetting member can move the first band ring and the second band ring in the sagittal direction away from the molar to be corrected;

[0016] The two ends of the pressing-down rubber band are respectively sleeved on the movable ends of the two pressing-down traction hooks, and the middle part of the pressing-down rubber band is made to bypass the occlusal surface of the molar to be corrected.

[0017] In order to better implement the utility model, further optimization is made in the above structure, wherein the first belt ring includes a ring body A and a ring body B;

[0018] The ring body A and the ring body B are arranged along the sagittal direction, so that the ring body A and the ring body B can be respectively sleeved on two consecutive teeth at the front end of the molar to be corrected;

[0019] The fixed ends of the two depressed traction hooks are both arranged on the ring body A.

[0020] In order to better realize the utility model, further optimization is made in the above structure, and the ring body A and the ring body B are integrally formed components.

[0021] In order to better implement the utility model, further optimization is made in the above structure, and the reset member includes a reset spring;

[0022] Two ends of the return spring are respectively disposed on the first belt ring and the second belt ring.

[0023] In order to better realize the utility model, further optimization is made in the above structure, and the reset member further includes abutment portion A and abutment portion B;

[0024] The abutment portion A is arranged on the buccal side of the first belt ring, and the abutment portion B is arranged on the buccal side of the second belt ring;

[0025] Two ends of the return spring are respectively abutted against the abutting portion A and the abutting portion B.

[0026] In order to better realize the utility model, further optimization is made in the above structure, and the reset member also includes a guide rod;

[0027] The two ends of the guide rod are respectively inserted into the abutment portion A and the abutment portion B;

[0028] The return spring is sleeved on the guide rod.

[0029] In order to better realize the utility model, further optimization is made in the above structure, and the abutting portion A and the abutting portion B are respectively fixed to the first belt ring and the second belt ring by welding.

[0030] In order to better realize the utility model, further optimization is made in the above structure, the abutment part A and the abutment part B are both tubular structures penetrated at both ends, and the end of the guide rod passes through the abutment part A and / or the abutment part B and then bends to form an anti-slip part.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] The first belt ring and the second belt ring in the non-terminal molar depression device with lost sagittal space provided by the utility model can be respectively sleeved on the adjacent teeth at the front and rear ends of the non-terminal elongated molar. By pushing the first belt ring and the second belt ring through the resetting member, the adjacent teeth at the rear end of the non-terminal elongated molar can be pushed along the sagittal direction in the direction away from the non-terminal elongated molar, so as to restore the sagittal space of the non-terminal elongated molar. At the same time, the depression rubber bands hung on the depression traction hooks on the lingual and buccal sides of the first belt ring can depress the non-terminal elongated molar, so that the non-terminal molar depression device with lost sagittal space can complete the combined operation of restoring the sagittal space and depressing the non-terminal elongated molar without replacing the orthodontic appliance in the middle of the treatment, thereby simplifying the operation of depressing the non-terminal elongated molar, and making the depressing of the non-terminal elongated molar more convenient, safe and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a structural schematic diagram of a non-terminal molar intrusion device for sagittal space loss of the utility model;

[0035] Figure 2 It is a schematic structural diagram of a non-terminal molar intrusion device with sagittal space loss in use according to the utility model;

[0036] Figure 3 It is a schematic diagram of the structure of the buccal side of a non-terminal molar intrusion device with sagittal space loss when in use;

[0037] Figure 4 It is a schematic diagram of the structure of the lingual side of a non-terminal molar depression device with sagittal space loss when in use;

[0038] Figure 5 It is a schematic structural diagram of the first band ring in a non-terminal molar intrusion device for sagittal space loss of the utility model;

[0039] Figure 6 The utility model is a structural schematic diagram of a resetting component in a non-terminal molar intrusion device for sagittal space loss.

[0040] In the figure:

[0041] 1. First belt ring; 11. Ring body A; 12. Ring body B;

[0042] 2. Second belt loop;

[0043] 3. reset member; 31. reset spring; 32. abutment portion A; 33. abutment portion B; 34. guide rod; 341. anti-slip portion;

[0044] 4. Press down the rubber band;

[0045] 5. Lower the towing hook. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0047] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0049] In the embodiments of the present application, Figures 1 to 6 As shown, the non-terminal molar depression device for sagittal space loss comprises a first belt ring 1, a second belt ring 2, a resetting member 3 and a depression rubber band 4; wherein,

[0050] The first band ring 1 and the second band ring 2 can be respectively mounted on the adjacent teeth at the front and rear ends of the molar to be corrected (non-terminal elongated molar), and the lingual side and buccal side of the first band ring 1 are both provided with depressing traction hooks 5, and the movable ends of the depressing traction hooks 5 are respectively located on the lingual side and buccal side of the molar to be corrected, and the movable ends of the depressing traction hooks 5 extend to the middle position of the first band ring 1 and the second band ring 2, that is, the movable ends of the depressing traction hooks 5 extend between the first band ring 1 and the second band ring 2, see Figure 1 ;

[0051] The two ends of the reset member 3 are respectively connected to the buccal side of the first band ring 1 and the buccal side of the second band ring 2, and the reset member 3 can push the first band ring 1 and the second band ring 2 in the sagittal direction away from the molar to be corrected; since the adjacent teeth at the front end of the molar to be corrected away from the molar to be corrected still have teeth, while the adjacent teeth at the rear end of the molar to be corrected have no teeth, see Figure 2 When the reset member 3 pushes the first band ring 1 and the second band ring 2, the position of the adjacent teeth at the front end of the molar to be corrected changes slightly, and the adjacent teeth at the rear end of the molar to be corrected can move toward the rear end of the molar to be corrected, so as to increase the sagittal space of the molar to be corrected;

[0052] The two ends of the pressing rubber band 4 are respectively sleeved on the movable ends of the two pressing traction hooks 5, see Figure 3 and Figure 4 And make the middle part of the depressed rubber band 4 bypass the occlusal surface of the molar to be corrected.

[0053] The first band ring 1 and the second band ring 2 in the non-terminal molar depression device with lost sagittal space can be respectively mounted on the adjacent teeth at the front and rear ends of the molar to be corrected. The first band ring 1 and the second band ring 2 are pushed by the resetting member 3, so that the adjacent teeth at the rear end of the molar to be corrected can be pushed away from the molar to be corrected, so as to restore the sagittal space of the molar to be corrected. At the same time, the depression rubber band 4 hung on the depression traction hooks 5 on the lingual and buccal sides of the first band ring 1 can depress the molar to be corrected, so that the non-terminal molar depression device with lost sagittal space can complete the combined operation of restoring the sagittal space and depressing the molar to be corrected without replacing the orthodontic appliance in the middle of the treatment, thereby simplifying the operation of depressing the non-terminal elongated molar, making the depression of the non-terminal elongated molar more convenient, safe and efficient.

[0054] In some embodiments, the first belt ring 1 includes a ring body A11 and a ring body B12; wherein,

[0055] The ring body A11 and the ring body B12 are arranged along the sagittal direction to form an "8"-shaped structure, such as Figure 5 As shown, the ring body A11 and the ring body B12 can be respectively mounted on two consecutive teeth at the front end of the molar to be corrected;

[0056] The fixed ends of the two depression traction hooks 5 are respectively connected and fixed to the buccal side of the ring body A11 and the lingual side of the ring body A11 to ensure the structural stability of the non-terminal molar depression device with sagittal space loss.

[0057] In some embodiments, the ring body A11 and the ring body B12 are integrally formed components to make the structure of the first belt ring 1 more stable.

[0058] In some embodiments, the reset member 3 includes a reset spring 31; wherein,

[0059] The return spring 31 is a coil spring, which is arranged between the first belt ring 1 and the second belt ring 2, and the two ends of the return spring 31 are respectively abutted on the first belt ring 1 and the second belt ring 2, so that the return spring 31 can push the first belt ring 1 and the second belt ring 2 in the extension direction of the return spring 31, so that the adjacent teeth at the front and rear ends of the molar to be corrected corresponding to the first belt ring 1 and the second belt ring 2 can be pushed along the sagittal direction away from the molar to be corrected, thereby realizing the restoration of the sagittal space of the molar to be corrected.

[0060] In some embodiments, the above-mentioned reset member 3 further includes abutment portion A32 and abutment portion B33, see Figure 6 ;in,

[0061] The abutment portion A32 and the abutment portion B33 are respectively arranged on the cheek side of the first belt ring 1 and the cheek side of the second belt ring 2, and the above-mentioned return spring 31 is arranged between the abutment portion A32 and the abutment portion B33, and the two ends of the return spring 31 are respectively abutted on the abutment portion A32 and the abutment portion B33.

[0062] It is worth noting that when the non-terminal molar depression device with sagittal space loss is installed, the reset spring 31 is always in a compressed state, so that the reset spring 31 can push the first belt ring 1 and the second belt ring 2 toward the extension of the reset spring 31.

[0063] In some embodiments, the reset member 3 further includes a guide rod 34; wherein,

[0064] The guide rod 34 is made of Australian wire, and the two ends of the guide rod 34 are respectively inserted into the abutment portion A32 and the abutment portion B33, and the length direction of the guide rod 34 is parallel to the sagittal direction;

[0065] The above-mentioned reset spring 31 is sleeved on the guide rod 34, so that the restoring force direction of the reset spring 31 is parallel to the sagittal direction, so as to ensure the effect of the non-terminal molar depression device with lost sagittal space pushing the adjacent teeth at the front and rear ends of the molar to be corrected; and the guide rod 34 can limit the position of the reset spring 31, to prevent the reset spring 31 from escaping from between the abutment portion A32 and the abutment portion B33, thereby making the structure of the non-terminal molar depression device with lost sagittal space more stable.

[0066] Preferably, the abutment portion A32 and the abutment portion B33 are respectively fixed to the first belt ring 1 and the second belt ring 2 by welding, so as to further improve the structural stability of the non-terminal molar depression device with sagittal space loss.

[0067] In some embodiments, the abutting portion A32 and the abutting portion B33 are both tubular structures with two ends passing through, and the axis of the abutting portion A32 and the axis of the abutting portion B33 are parallel to the sagittal direction, so that the end of the guide rod 34 can pass through the abutting portion A32 and the abutting portion B33 to fix the guide rod 34;

[0068] The end of the guide rod 34 is bent to form an anti-slip portion 341 after passing through the abutting portion A32 and / or the abutting portion B33, see Figure 2 , Figure 3 and Figure 6 , to prevent the end of the guide rod 34 from falling out of the abutment portion A32 and / or the abutment portion B33, thereby avoiding the failure of the non-terminal molar depression device due to the loss of sagittal space caused by the guide rod 34 falling out of the abutment portion A32 or the abutment portion B33 during the correction process.

[0069] Preferably, the outer diameters of the abutment portion A32 and the abutment portion B33 are both larger than the outer diameter of the return spring 31, and the inner diameters of the abutment portion A32 and the abutment portion B33 are both smaller than the inner diameter of the return spring 31, so that both ends of the return spring 31 can be firmly abutted against the end surfaces of the abutment portion A32 and the abutment portion B33, so as to further improve the structural stability of the non-terminal molar depression device with sagittal space loss.

[0070] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A non-terminal molar intrusion device with sagittal space loss, used for intrusion correction of non-terminal elongated molars, characterized by: It comprises a first belt ring (1), a second belt ring (2), a resetting member (3) and a pressing rubber band (4); The first band ring (1) and the second band ring (2) can be respectively sleeved on the adjacent teeth at the front and rear ends of the molar to be corrected, and the lingual side and the buccal side of the first band ring (1) are both provided with depression hooks (5), and the movable ends of the two depression hooks (5) are respectively located on the lingual side and the buccal side of the molar to be corrected, and the movable ends of the two depression hooks (5) are both extended to the middle position of the first band ring (1) and the second band ring (2); The two ends of the repositioning member (3) are respectively connected to the buccal side of the first band ring (1) and the buccal side of the second band ring (2), and the repositioning member (3) is capable of moving the first band ring (1) and the second band ring (2) in the sagittal direction away from the molar to be corrected; The two ends of the pressing rubber band (4) are respectively sleeved on the movable ends of the two pressing traction hooks (5), and the middle part of the pressing rubber band (4) is made to bypass the occlusal surface of the molar to be corrected.

2. The non-terminal molar intrusion device for sagittal space loss according to claim 1, characterized in that: The first belt ring (1) comprises a ring body A (11) and a ring body B (12); The ring body A (11) and the ring body B (12) are arranged along the sagittal direction, so that the ring body A (11) and the ring body B (12) can be respectively mounted on two consecutive teeth at the front end of the molar to be corrected; The fixed ends of the two lowering and traction hooks (5) are both arranged on the ring body A (11).

3. The non-terminal molar intrusion device for sagittal space loss according to claim 2, characterized in that: The ring body A (11) and the ring body B (12) are integrally formed components.

4. The non-terminal molar intrusion device for sagittal space loss according to claim 1, characterized in that: The reset element (3) comprises a reset spring (31); Two ends of the return spring (31) are respectively disposed on the first belt ring (1) and the second belt ring (2).

5. The non-terminal molar intrusion device for sagittal space loss according to claim 4, characterized in that: The resetting member (3) further comprises a resisting portion A (32) and a resisting portion B (33); The abutment portion A (32) is arranged on the buccal side of the first belt ring (1), and the abutment portion B (33) is arranged on the buccal side of the second belt ring (2); Two ends of the return spring (31) are respectively abutted against the abutting portion A (32) and the abutting portion B (33).

6. The non-terminal molar intrusion device for sagittal space loss according to claim 5, characterized in that: The resetting member (3) further comprises a guide rod (34); Two ends of the guide rod (34) are respectively inserted into the abutting portion A (32) and the abutting portion B (33); The return spring (31) is sleeved on the guide rod (34).

7. The non-terminal molar intrusion device for sagittal space loss according to claim 6, characterized in that: The abutting portion A (32) and the abutting portion B (33) are respectively fixed to the first belt ring (1) and the second belt ring (2) by welding.

8. The non-terminal molar intrusion device for sagittal space loss according to claim 7, characterized in that: The abutting portion A (32) and the abutting portion B (33) are both tubular structures with two ends passing through, and the end of the guide rod (34) passes through the abutting portion A (32) and / or the abutting portion B (33) and is then bent to form an anti-slip portion (341).

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