Vertical device for low-position forward impacted molar

Abstract

The utility model discloses a vertical device for low-position forward impacted molar, which is characterized in that a distal connecting arm, a cross beam and a mesial retention arm are sequentially formed by integrally bending a round wire, a cross beam forearm is arranged at the tail end of the distal connecting arm, a small loop is arranged below the cross beam forearm and is connected with the end part of the cross beam, and the mesial retention arm is connected with the end part of the cross beam. An auxiliary fixing bend used for limiting is arranged between the cross beam and the mesial retention arm. The vertical device is simple in structure, easy to bend, stable and reliable in anchorage, capable of preventing the vertical device from sliding or falling off and high in reliability of the vertical effect.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, specifically to a vertical device for low-positioned, forward-leaning impacted molars. Background Technology

[0002] Mesial impaction of maxillary and mandibular molars is a relatively common malocclusion in clinical practice. If not treated promptly and appropriately, it often leads to lesions in the molars and adjacent teeth, periodontium, and even pulp, as well as elongation of the opposing teeth, ultimately affecting the patient's oral health, dentition integrity, occlusal function, and facial aesthetics. Common methods for vertically impacting low-lying mesial molars in clinical practice include using auxiliary arches such as vertical springs, cantilever arches, and T-shaped arches in combination with local or full-mouth fixed orthodontics, fixed molar traction devices, and implant anchorage. However, due to the structural and functional characteristics of the orthodontic appliances, all of these methods have their limitations.

[0003] Vertical spring, cantilever, and T-shaped braces have complex structures that can easily compress adjacent soft tissues, causing iatrogenic injury; they also easily lead to plaque buildup. Furthermore, insufficient anterior tooth anchorage may cause unnecessary movement of other teeth. Fixed molar traction devices are bulky, uncomfortable to wear, and detrimental to maintaining oral hygiene; they contain sharp metal hooks, posing safety hazards; traction components such as hooks can easily cause occlusal interference, hooks are prone to deformation and displacement, and bands can sink and compress the gums, causing discomfort to the patient. Implant placement is an invasive surgical procedure with risks of pain, bleeding, infection, local swelling, and periodontal ligament damage; implants are prone to dislodgement in patients with low bone density or poor oral hygiene; and the cost is also high.

[0004] Therefore, a simple, economical, and reliable vertical device is needed to correct the forward tilting and impaction of free molars. Utility Model Content

[0005] The purpose of this invention is to provide a vertical device for low-position forward-tilting impacted molars. By sequentially bending the distal connecting arm and the mesial retention arm to form a crossbeam forearm, a small loop, a crossbeam, and an auxiliary fixing loop, the tilted molar and the anchoring tooth are connected, correcting the forward-tilting impaction of the free end molar, and solving the above-mentioned problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0007] A vertical device for low-positioned, forward-tilting impacted molars comprises a distal connecting arm, a crossbeam, and a mesial retention arm, all integrally bent from a round wire. The distal connecting arm has a crossbeam forearm at its end, and a small loop is provided below the crossbeam forearm to connect to the end of the crossbeam. An auxiliary fixing loop for limiting the position is provided between the crossbeam and the mesial retention arm.

[0008] Further, the small circle curve is in a ring structure and is located below the distal connecting arm.

[0009] Further, the crossbeam is at the same level with the bottom end of the small circle curve.

[0010] Further, the free end of the distal connecting arm is consistent with the free end of the mesial retaining arm in direction and is at the same level.

[0011] Further, the auxiliary fixing curve is in an Ω shape, and the open end of the auxiliary fixing curve is away from the front arm of the crossbeam.

[0012] Further, the round wire is made of stainless steel.

[0013] Further, the diameter of the round wire is 0.016-0.018 inch.

[0014] Further, the free end of the distal connecting arm is inserted into the orthodontic auxiliary assembly of the inclined molar surface, and the free end of the mesial retaining arm is inserted into the orthodontic auxiliary assembly of the anchorage tooth.

[0015] The utility model has the beneficial effects:

[0016] The utility model is formed by 0.016-0.018 inch stainless steel round wire and is sequentially bent to form a distal connecting arm, a crossbeam front arm, a small circle curve, a crossbeam, an auxiliary fixing curve and a mesial retaining arm, and the structure is simple and easy to bend;The distal connecting arm and the mesial retaining arm are connected with the inclined molar and the anchorage tooth respectively, the mesial retaining arm and the auxiliary fixing curve are connected with the orthodontic auxiliary assembly of the anchorage tooth surface, the anchorage of the whole vertical device is stable and reliable, and the vertical device is prevented from sliding or falling off;The deformation of the small circle curve after installation makes the inclined molar provide continuous and soft distal vertical force through the crossbeam front arm and the distal connecting arm to move distally and incline, the force direction and size can be flexibly adjusted according to the inclination angle and eruption height of the mesial inclined molar, and the vertical action reliability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model;

[0018] Figure 2 It is the structural schematic diagram of the utility model after being installed in place in the mouth.

[0019] Mark: 1-distal connecting arm, 2-crossbeam, 3-small circle curve, 4-crossbeam front arm, 5-auxiliary fixing curve, 6-mesial retaining arm, 7-resin ball, 8-orthodontic auxiliary assembly, 9-inclined molar, 10-anchorage tooth. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail in connection with the embodiments and drawings, but the implementation of the utility model is not limited to this.

[0021] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "back", "top", "bottom" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship that the utility model product is usually placed in during use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "open", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Embodiment 1

[0024] The embodiment 1 of the utility model is a vertical device for low forward tilting impacted molar, which is sequentially formed by distal connecting arm 1, crossbeam 2 and proximal retention arm 6 which are bent from round wire, the end of the distal connecting arm 1 is provided with crossbeam front arm 4, the lower side of the crossbeam front arm 4 is provided with small circle curve 3 which is connected with the end of crossbeam 2, and the crossbeam 2 and the proximal retention arm 6 are provided with auxiliary fixing curve 5 for limiting.

[0025] Refer to Figure 1 , the technical concept of the application is that the distal connecting arm 1 and the proximal retention arm 6 are respectively connected with the proximal tilting impacted molar and the anchorage tooth 10, so that the vertical device is connected with the proximal tilting molar 9, the crossbeam front arm 4 and the crossbeam 2 part exert the distal vertical and combined pressure lowering / elongation force on the tilting molar 9 through the adjustment of the small circle curve 3 and can adjust the force size, without cooperating with the use of chain rubber ring or other traction force accessories, the comfort of the patient is improved, and oral hygiene is easy to maintain, the auxiliary fixing curve 5 part is fixedly connected with the anchorage tooth 10, so as to prevent the vertical device from sliding or falling off and play a limiting role, after the vertical device is in place, it deforms, so as to generate the distal backward force on the tilting molar 9, the tilting molar 9 can be moved to the distal side, so as to separate from the adjacent tooth undercut area, and the proximal tilting impacted molar is corrected.

[0026] In some preferred embodiments, the small loop 3 is in a ring shape and is located below the distal connecting arm 1. The small loop 3 acts as a spring in the vertical device, and the small loop 3 exerts force on the distal connecting arm 1 through the crossbeam front arm 4 to make the tilted molar 9 vertically distal, thereby preventing the tilted molar 9 from continuing to tilt. The size of the force for vertical distal is adjusted by the mutual action of the crossbeam front arm 4 and the crossbeam 2.

[0027] Meanwhile, the small loop 3 can adjust the vertical force according to the eruption height of the tilted molar 9 and the occlusion with the opposite tooth, and is suitable for unilateral or bilateral free ends, and the correction of the mesial tilted impacted molar with a certain eruption height (the buccal side of the tilted molar 9 can be bonded with a buccal tube).

[0028] In some preferred embodiments, the bottom end of the crossbeam 2 is at the same level as the small loop 3. By limiting the position of the small loop 3, the crossbeam 2, under the connection of the auxiliary fixation curve 5 and the mesial retention arm 6, makes the small loop 3 guide the crossbeam front arm 4 to exert force on the distal connecting arm 1, thereby achieving the vertical distal of the tilted molar 9.

[0029] In some preferred embodiments, the free end of the distal connecting arm 1 is consistent with the free end of the mesial retention arm 6 and is at the same level. Referring to Figure 1 and Figure 2 It can be seen that the distal connecting arm 1 and the mesial retention arm 6 are at the same level, which provides a stable anchorage effect for the small loop 3 during the vertical distal of the tilted molar 9, thereby avoiding the tilting of the anchorage tooth 10 due to the adjustment of the small loop 3.

[0030] In some preferred embodiments, the auxiliary fixation curve 5 is in the shape of Ω, and the open end of the auxiliary fixation curve 5 is away from the crossbeam front arm 4. The Ω-shaped auxiliary fixation curve 5 is arranged below the mesial retention arm 6, and after the mesial retention arm 6 is inserted in place, the auxiliary fixation curve 5 is fixed with the orthodontic auxiliary assembly 8 in the anchorage tooth 10 by using a ligation wire, thereby preventing the vertical device from sliding or falling off during use and saving the vertical procedure.

[0031] In some preferred embodiments, the round wire is made of stainless steel material. The diameter of the round wire is directly 0.6 mm. The stainless steel material has good high elasticity and flexibility, sustained light force, and good deformation recovery ability, which can reduce the damage to the teeth and periodontal tissue during the vertical distal of the tilted molar 9, and can also quickly recover to the original state after bending or twisting. The stainless steel material is easy to bend the parts in the vertical device, and the operation time is short.

[0032] Embodiment 2

[0033] This embodiment 2 is implemented on the basis of embodiment 1, referring to Figure 2The free end of the distal connecting arm 1 is inserted into the orthodontic auxiliary assembly 8 of the surface of the tilted molar 9, and the free end of the mesial retaining arm 6 is inserted into the orthodontic auxiliary assembly 8 of the anchorage tooth 10. When the vertical device of the application is used, the free end of the distal connecting arm 1 and the free end of the mesial retaining arm 6 are inserted into the orthodontic auxiliary assembly 8 of the surface of the tilted molar 9 and the surface of the anchorage tooth 10 adjacent to the tilted molar 9, respectively, the orthodontic auxiliary assembly 8 includes a buccal tube of the anchorage tooth 10, an auxiliary arch tube or an extraoral arch tube, etc., and after the mesial retaining arm 6 is worn into place, the free end of the mesial retaining arm 6 is wrapped with the resin ball 7, and the auxiliary fixation curve 5 is fixed with the orthodontic auxiliary assembly 8 of the anchorage tooth 10 by using a ligation wire, so as to prevent the mesial retaining arm 6 from slipping out of the orthodontic auxiliary assembly 8, improve the anchorage stability effect of the vertical device, and prevent the generation of side effects such as mesial torsion and mesial inclination of the anchorage tooth 10, early contact of posterior teeth, and opening and closing of anterior teeth during the vertical process of the distal tilted molar 9.

[0034] The working principle of the application is as follows: after the vertical device is worn into place in the oral cavity of the patient, the mesial retaining arm 6 is assembled on the surface of the orthodontic auxiliary assembly 8 of the anchorage tooth 10, the ligation wire passes through the auxiliary fixation curve 5 and the upper part of the buccal tube in sequence, so that the ligation wire forms a loop, is locked at the position of the auxiliary fixation curve 5, and the release force of the ligation wire is offset to the back, thereby the pushing force is transmitted to the posterior teeth, and finally the auxiliary fixation curve 5 and the orthodontic auxiliary assembly 8 are fixed and limited, so that the anchorage is stable and reliable, and side effects such as mesial torsion and mesial inclination of the anchorage tooth 10, early contact of posterior teeth, and opening and closing of anterior teeth are effectively prevented during the vertical process of the distal tilted molar 9. Meanwhile, the arch wire is deformed after the small loop curve 3 is worn into place, so as to generate a mesial and posterior force on the tilted molar 9, so that the tilted molar 9 is moved to the distal direction, thereby the tilted molar 9 is separated from the adjacent tooth undercut area, the force direction and size can be flexibly adjusted according to the inclination angle and eruption height of the mesial tilted molar 9, and the mesial vertical effect is improved. After the mesial vertical is completed, the vertical device is convenient to remove, and the treatment progress of the patient is not affected.

[0035] The above is only a preferred embodiment of the application, and does not limit the application in any form. According to the technical essence of the application, any simple modification, equivalent replacement and improvement of the above embodiment still belongs to the protection scope of the technical scheme of the application.

Claims

1. A vertical device for low-positioned, forward-tilting impacted molars, characterized in that, The distal connecting arm (1), the crossbeam (2), and the proximal retaining arm (6) are formed by bending round wires in sequence. The end of the distal connecting arm (1) is provided with a crossbeam front arm (4). A small loop (3) is provided below the crossbeam front arm (4) and connected to the end of the crossbeam (2). An auxiliary fixing loop (5) for limiting the position is provided between the crossbeam (2) and the proximal retaining arm (6).

2. The vertical device for low-position forward-tilting impacted molars according to claim 1, characterized in that, The small loop (3) has a ring-shaped structure and is located below the distal connecting arm (1).

3. A vertical device for low-position forward-tilting impacted molars according to claim 1, characterized in that, The bottom ends of the crossbeam (2) and the small loop (3) are at the same level.

4. A vertical device for low-position forward-tilting impacted molars according to claim 1, characterized in that, The free end of the distal connecting arm (1) and the free end of the proximal retaining arm (6) are aligned and at the same level.

5. A vertical device for low-position forward-tilting impacted molars according to claim 1, characterized in that, The auxiliary fixing curve (5) is Ω-shaped, and the open end of the auxiliary fixing curve (5) is away from the front arm (4) of the crossbeam.

6. A vertical device for low-position forward-tilting impacted molars according to claim 1, characterized in that, The round wire is made of stainless steel.

7. A vertical device for low-position forward-tilting impacted molars according to claim 1, characterized in that, The diameter of the round wire is 0.016-0.018 inches.

8. A vertical device for low-position forward-tilting impacted molars according to claim 1, characterized in that, The free end of the distal connecting arm (1) is inserted into the orthodontic auxiliary component (8) on the surface of the inclined molar (9), and the free end of the mesial retention arm (6) is inserted into the orthodontic auxiliary component (8) of the anchorage tooth (10).

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