Muscle agonist

Abstract

The utility model discloses a muscle agonist which comprises an upper jaw part and a lower jaw part, the upper jaw part and the lower jaw part are connected through a connecting part, and the upper jaw part, the lower jaw part and the connecting part are integrally manufactured. The upper jaw part at least wraps upper jaw anterior teeth, and the lower jaw part at least wraps a lower anterior tooth area. The fixing effect is stronger, the direct control on the movement of the upper anterior teeth is increased, and the limitation on the position of the lower jaw is stronger.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially to a muscle activator. BACKGROUND

[0002] The muscle activator was designed by Andresen in 1908, so it is also called Andresen appliance. Subsequently, it has been continuously improved and perfected in the long-term clinical application process, and is mainly used for treating Angle class II malocclusion at the peak of adolescent development. The muscle activator controls tooth eruption while moving the lower jaw forward, thereby adjusting the sagittal relationship of the upper and lower jaws. The muscle activator can also be used to treat Angle class III 2 classification, Angle class III and open mouth deformity, but it is not suitable for Angle class I dental crowding and maxillary protrusion cases.

[0003] The main body of the existing muscle activator is a plastic base without specific retention devices or force-generating force-adding devices. The maxillary part of the base can cover the entire palate (or not) and the end reaches the distal surface of the first permanent molar. The mandibular part can extend to the floor of the mouth, and the posterior teeth reach the distal surface of the mandibular molar. The upper and lower jaw parts are connected, and a plastic cap is formed in the anterior teeth area to guide the mandibular forward movement and prevent the lower incisors from vertical eruption. The degree of wrapping of the lower incisor plastic cap determines the movement mode of the lower incisor. If the wrapping degree exceeds 1 / 3 of the length of the lower incisor crown, it can prevent the lower anterior teeth from tilting to the labial side caused by the muscle activator; if the wrapping degree is less than 1 / 3 of the length of the lower incisor crown, it can cause the lower anterior teeth to tilt to the labial side after treatment.

[0004] To further strengthen the control of the upper anterior teeth, the traditional muscle activator also uses a 0.9-1.0 mm diameter hard stainless steel wire to bend into a common double-curved lip arch. The lip arch can transmit the muscle correction force to the upper anterior teeth, and if the palatal part of the base of the upper anterior teeth is adjusted and buffered, the upper anterior teeth will tilt to the palatal side under the influence of the lip arch.

[0005] The manufacturing method of the existing muscle activator includes the following steps:

[0006] (1) Make a plaster model;

[0007] (2) Draw the lip arch and jaw arch guide lines;

[0008] (3) Use wax to leave space for the growth of mandibular teeth;

[0009] (4) Bend the lip arch and jaw arch;

[0010] (5) Make a base edge wax model;

[0011] (6) Soak the model;

[0012] (7) Apply self-curing base resin;

[0013] (8) After waiting for solidification, polishing and grinding are performed;

[0014] The existing muscle activator has the following defects:

[0015] (1) Structural defects

[0016] A. Poor retention effect. The traditional muscle activator has no retention effect itself and relies on the interaction between the upper and lower jaws and the muscle activator to achieve retention.

[0017] B. Poor control force on the teeth. The traditional muscle activator has no control ability on the upper anterior teeth and needs to rely on a double-curved lip arch to achieve further control of the upper anterior teeth. The bending process of the double-curved lip arch is complex, further increasing the manufacturing cost of the muscle activator.

[0018] (2) Defects in the manufacturing method: The manufacturing method of the traditional muscle activator is very complex, involving multiple processes, long manufacturing time, high cost, and difficulty in replacement.

[0019] (3) Poor aesthetics and comfort. The traditional muscle activator is composed of hard polymers and stainless steel wires, which has poor aesthetics, hard material, and large volume, resulting in poor comfort. Content of the utility model

[0020] In order to overcome the above-mentioned defects, the utility model aims to provide a muscle activator which can enhance the retention effect and achieve direct control of the movement of the upper anterior teeth.

[0021] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0022] A muscle activator, comprising an upper jaw part and a lower jaw part, the upper jaw part and the lower jaw part being connected through a connecting part, the upper jaw part, the lower jaw part and the connecting part being integrally manufactured.

[0023] The upper jaw part at least wraps the upper anterior teeth, and the lower jaw part at least wraps the lower anterior teeth.

[0024] As a preferred, the upper jaw part comprises a clinical crown A corresponding to the upper anterior teeth or the entire upper jaw teeth, and the lower jaw part comprises a clinical crown B corresponding to the lower anterior teeth or the entire lower jaw teeth.

[0025] The inner wall of the clinical crown A is attached to the outer wall of the corresponding upper teeth, and the inner wall of the clinical crown B is attached to the outer wall of the corresponding lower anterior teeth.

[0026] As another preferred, the upper jaw part comprises a clinical crown A corresponding to the upper anterior teeth or the entire upper jaw teeth, and the lower jaw part comprises a clinical crown B corresponding to the lower anterior teeth or the entire lower jaw teeth.

[0027] The muscle stimulator clinical tooth crown A and the corresponding upper tooth and / or the clinical tooth crown B and the corresponding lower tooth are left with a gap for the upper tooth and / or the lower tooth to move.

[0028] As a preferred, the connecting part is a stress dispersion structure, which is one of the following three ways:

[0029] The first way: the clinical tooth crown B corresponding to the lower anterior tooth is connected to the closest clinical tooth crown A by one connecting rod and / or connected to the closest two clinical tooth crowns A by two connecting rods respectively, and the adjacent connecting rods are not parallel.

[0030] The second way: all clinical tooth crowns B are connected to the closest clinical tooth crown A by one connecting rod and / or connected to the closest two clinical tooth crowns A by two connecting rods respectively, and the adjacent connecting rods are not parallel.

[0031] The third way: the stress dispersion structure is a hollow structure.

[0032] As another preferred, the connecting part is an integral structure, the bottom of the connecting part is connected to the top of the clinical tooth crown B corresponding to the mandibular anterior tooth and the occlusal surface of the clinical tooth crown B corresponding to the mandibular posterior tooth, and the top of the connecting part is connected to the bottom of the clinical tooth crown A corresponding to the maxillary anterior tooth and the occlusal surface of the clinical tooth crown A corresponding to the maxillary posterior tooth.

[0033] As a preferred, the maxillary part and the mandibular part are in a position that can make the maxillary dental arch incisal edge and the mandibular dental arch incisal edge direction directly opposite, and the vertical distance between the maxillary dental arch and the mandibular dental arch can be adjusted.

[0034] As another preferred, the maxillary part and the mandibular part are in a position that makes the mandibular whole forward by a predetermined distance.

[0035] Further, the clinical tooth crown A and the clinical tooth crown B corresponding to the canine are provided with a rectangular accessory for retention.

[0036] Preferably, the material of the maxillary part, the mandibular part and the connecting part is resin, preferably flexible resin.

[0037] The beneficial effects of the utility model are as follows:

[0038] 1. Stronger retention effect, the traditional muscle stimulator has no retention effect, and only relies on the interaction between the upper and lower jaws and the muscle stimulator to achieve retention, while the muscle stimulator involved in the utility model can achieve complete fitting effect with the tooth crown, and better retention effect is achieved through the structure of the appliance.

[0039] 2. Direct control of upper anterior teeth movement, traditional muscle activator needs to use induced wire to bend double-curved lip arch to transmit force to upper anterior teeth, while the muscle activator involved in the utility model realizes complete wrapping of clinical tooth crown of upper anterior teeth, and can control lip and tongue movement of upper anterior teeth without using induced wire.

[0040] 3. Stronger limitation on mandibular position, traditional design has limited limitation on lower anterior teeth, and mandible still has active space, the muscle activator involved in the utility model wraps lower anterior teeth, so that the position of upper and lower jaws is completely fixed, and the mandibular position can be better limited.

[0041] 4. The utility model can control the vertical height of upper and lower posterior teeth, and different embodiments can be used according to the needs of high-angle, low-angle and uniform-angle cases for vertical control of posterior teeth.

[0042] 5. The utility model can reduce intermaxillary force by stress dispersion structure, and provide more gentle traction force for mandibular advancement. In order to prevent the traction force of mandibular advancement from being too large, the traditional muscle activator needs to design the process of mandibular advancement into multiple steps according to the advancement amount, and each step moves a certain distance. The light traction force provided by the stress dispersion of the utility model can greatly increase the mandibular advancement amount, and effectively improve the treatment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 It is a structure schematic view of embodiment 1.

[0044] Figure 2 It is a left view of Figure 1 .

[0045] Figure 3 It is a structure schematic view of embodiment 2.

[0046] Figure 4 It is a structure schematic view of embodiment 3.

[0047] Figure 5 It is a structure schematic view of embodiment 4.

[0048] Figure 6 It is a structure schematic view of embodiment 5.

[0049] Figure 7 It is a structure schematic view of embodiment 6.

[0050] Figure 8 It is a structure schematic view of embodiment 7. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the utility model will be further described in detail below with reference to the drawings.

[0052] Embodiment 1

[0053] The present embodiment discloses a muscle stimulator, see as Figure 1 、 Figure 2 , specifically as follows:

[0054] The present embodiment can use a resin material similar to or identical to the resin material used in clinically used invisible aligners and retainers, and is integrally formed without the need for using other connecting materials or manufacturing processes.

[0055] The structure is integrated with the upper jaw and the lower jaw, wherein the upper jaw part 1 wraps the complete upper jaw teeth, including a clinical crown A11 corresponding to the upper jaw teeth, and the end extends to the distal end of the molar, and the inner wall of the clinical crown A11 is in close contact with the outer wall of the upper jaw teeth; the lower jaw part 2 wraps the lower anterior teeth region, i.e. the central incisors, lateral incisors and canines, and the lower jaw part 2 includes a clinical crown B21 corresponding to the lower anterior teeth, and the inner wall of the clinical crown B2 is in close contact with the outer wall of the lower anterior teeth.

[0056] The upper jaw part 1 and the lower jaw part 2 are in a position that can make the upper jaw teeth cutting edge and the lower jaw teeth cutting edge face each other.

[0057] The connecting part 3 is a stress dispersion structure, and the stress dispersion structure of the present embodiment is that the clinical crown B21 is connected to the closest clinical crown A and / or two closest clinical crowns A11 through one connecting rod 31, and the adjacent connecting rods 31 are not parallel.

[0058] The resin material can be a hard resin or a flexible resin, or the upper jaw part 1 and the lower jaw part 2 can use a hard resin, and the connecting part 3 can use a flexible resin.

[0059] The lower jaw part 2 of the present embodiment is designed to be in a forward and downward protruding position, i.e. the lower anterior teeth region is in a position that is opposite to the cutting edge of the upper anterior teeth region. The upper jaw part 1 is arranged to move the upper anterior teeth downward, and since it completely wraps the upper jaw teeth, the upper jaw part 1 can be used to guide the forward movement of the lower jaw. The reaction force generated in the process of moving the lower jaw forward acts on the upper dental arch through the muscle stimulator, and an inward force is generated on the upper anterior teeth, thereby achieving the treatment effect of moving the lower jaw forward, pressing the upper anterior teeth downward and inward.

[0060] The upper anterior and posterior teeth and the lower anterior teeth are completely wrapped by the muscle stimulator, and under the action of the closing muscle, the upper and lower anterior teeth have a tendency to be maintained or pressed downward, and the lower posterior teeth are not covered, which is conducive to natural elongation, thereby achieving the opening of the bite.

[0061] The present embodiment is mainly suitable for clinical cases that need to raise the posterior teeth and guide the lower jaw forward for treatment purposes, such as low-angle cases.

[0062] Embodiment 2

[0063] This embodiment discloses a muscle activator, as shown in the figure, the difference between this embodiment and embodiment 1 is the mandibular part 2, the mandibular part 2 of this embodiment wraps the complete mandibular dentition, and the mandibular part 2 is provided with clinical crowns B21 corresponding to the whole mandibular dentition, and the end extends to the distal of the molar. Figure 3 In this embodiment, the mandibular part 2 is provided with the tooth movement for flattening the occlusal curve, and the tooth movement for aligning the teeth is realized while the mandible is moved forward. The maxillary part 1 is provided with the tooth movement for depressing the upper anterior teeth, and the maxillary part 1 can be used to guide the mandible to move forward because it completely wraps the maxillary dentition. The reaction force generated in the process of moving the mandible forward acts on the upper dental arch through the muscle activator, and an inward force is generated on the upper anterior teeth, thereby realizing the treatment effect of moving the mandible forward and inwardly retracting the upper anterior teeth.

[0064] At this time, the upper and lower anterior teeth and the posterior teeth are all wrapped by the muscle activator mandibular part, and there is an interaction connecting part 3, which can maintain the posterior teeth height under the action of the closing muscle, and the tooth movement for depressing the upper anterior teeth and flattening the Spee curve of the mandible is set inside the appliance, thereby realizing the effects of reversing the upper occlusal plane, flattening the lower occlusal plane, and finally opening the occlusion and reversing the mandible.

[0065] This embodiment is mainly suitable for the clinical cases with the treatment purpose of reversing the upper occlusal plane, flattening the Spee curve of the mandible, reversing the mandible, and guiding the mandible forward.

[0066] The other parts of this embodiment are the same as those of embodiment 1, and thus are not described herein.

[0067] Embodiment 3

[0068] This embodiment discloses a muscle activator, as shown in the figure, the difference between this embodiment and embodiment 2 is the stress dispersion structure, in this embodiment, only the clinical crown B21 corresponding to the lower anterior teeth is connected to the corresponding clinical crown A11 through the connecting rod 31.

[0069] Figure 4 The maxillary part 1 is provided with the tooth movement for depressing the upper anterior teeth, and the maxillary part 1 can be used to guide the mandible to move forward because it completely wraps the maxillary dentition. The reaction force generated in the process of moving the mandible forward acts on the upper dental arch through the muscle activator, and an inward force is generated on the upper anterior teeth, thereby realizing the treatment effect of moving the mandible forward and inwardly retracting the upper anterior teeth.

[0070] At this time, the lower anterior teeth and the posterior teeth are all wrapped by the muscle activator mandibular part, and the connecting part is located between the upper anterior teeth and the lower anterior teeth, so that the upper and lower anterior teeth have the tendency to maintain or be depressed under the action of the closing muscle, and the tooth movement for flattening the longitudinal occlusal curve of the upper and lower jaws is set inside the appliance.

[0071] At this time, the lower anterior teeth and the posterior teeth are all wrapped by the muscle activator mandibular part, and the connecting part is located between the upper anterior teeth and the lower anterior teeth, so that the upper and lower anterior teeth have the tendency to maintain or be depressed under the action of the closing muscle, and the tooth movement for flattening the longitudinal occlusal curve of the upper and lower jaws is set inside the appliance. ​

[0072] This embodiment is mainly applicable to clinical cases where the anterior teeth are indented and the posterior teeth are elongated, and the mandible needs to be guided forward for treatment purposes, such as cases with equal angles.

[0073] The other parts of this embodiment are the same as those in Embodiment 2, so they will not be described again.

[0074] Example 4

[0075] This embodiment discloses a muscle activator, such as Figure 5 As shown, the difference between this embodiment and embodiment 1 lies in the maxillary portion 1. In this embodiment, the maxillary portion 1 only covers the maxillary anterior teeth. The maxillary portion 1 only has clinical crowns A11 that correspond one-to-one with the maxillary anterior teeth. The maxillary and mandibular posterior teeth do not contact each other, which can promote the eruption of the maxillary and mandibular posterior teeth.

[0076] The other parts of this embodiment are the same as those in Embodiment 1, so they will not be described again.

[0077] Example 5

[0078] The muscle agonist disclosed in this embodiment differs from embodiments 1, 2, or 3 in the positional relationship between the maxillary portion 1 and the mandibular portion 2. In this embodiment, the maxillary portion 1 and the mandibular portion 2 are positioned to move the entire mandible forward by a predetermined distance.

[0079] In this embodiment, multiple identical muscle agonists can be configured, each with different predetermined distances, such as... Figure 6 As shown, the mandibular anterior movement is broken down into multiple steps, with each muscle activator set with a certain amount of mandibular anterior movement until the incisal edges of the maxillary and mandibular dentitions are aligned.

[0080] Example 6

[0081] like Figure 7 As shown, the muscle stimulator disclosed in this embodiment differs from embodiments 1, 2, 3, 4 or 5 in that: the clinical crowns A11 and B21 corresponding to the canines are provided with rectangular attachments 4 for retention. This embodiment is for patients with shorter crowns and can prevent the muscle stimulator from falling off.

[0082] Example 7

[0083] like Figure 8 As shown, the muscle activator disclosed in this embodiment differs from the above embodiment in that the connecting part 3 is an integral structure. The bottom of the connecting part 3 is connected to the top of the clinical crown B21 corresponding to the lower anterior tooth, and the top of the connecting part 3 is connected to the bottom of the partial clinical crown A11.

[0084] Example 8

[0085] The muscle stimulator disclosed in the above embodiment can be provided with a traction hook or a buccal tube of an extraoral arch on the cuspid tooth to assist in lowering the front teeth through implant pin traction or extraoral traction for a patient with a severe high-angle auxiliary implant pin and extraoral arch.

[0086] Of course, the present application can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application. However, these corresponding changes and modifications should all belong to the protection scope of the claims attached to the present application.

Claims

1. A muscle stimulator, characterized in that, The upper jaw part and the lower jaw part are connected by a connecting part, and the upper jaw part, the lower jaw part and the connecting part are integrally manufactured; The upper jaw part at least wraps the upper anterior teeth, and the lower jaw part at least wraps the lower anterior teeth.

2. The muscle stimulator of claim 1, wherein, The upper jaw part comprises clinical tooth crowns A corresponding to the upper anterior teeth or the entire upper jaw teeth row, and the lower jaw part comprises clinical tooth crowns B corresponding to the lower anterior teeth or the entire lower jaw teeth row. Inner walls of the clinical tooth crowns A are in contact with outer walls of the corresponding upper teeth, and inner walls of the clinical tooth crowns B are in contact with outer walls of the corresponding lower anterior teeth.

3. The myostimulant of claim 1, wherein, The upper jaw part comprises clinical tooth crowns A corresponding to the upper anterior teeth or the entire upper jaw teeth row, and the lower jaw part comprises clinical tooth crowns B corresponding to the lower anterior teeth or the entire lower jaw teeth row. Gaps are left between the clinical tooth crowns A and the corresponding upper teeth and / or between the clinical tooth crowns B and the corresponding lower teeth to facilitate movement of the upper teeth and / or the lower teeth.

4. A muscle stimulator according to claim 2 or 3, characterised in that, The connecting part is a stress dispersion structure, which is one of the following three modes: Mode one: the clinical tooth crowns B corresponding to the lower anterior teeth are connected to one clinical tooth crown A closest to the clinical tooth crowns B and / or two clinical tooth crowns A closest to the clinical tooth crowns B through two connecting rods, and adjacent connecting rods are not parallel; Mode two: all the clinical tooth crowns B are connected to one clinical tooth crown A closest to the clinical tooth crowns B and / or two clinical tooth crowns A closest to the clinical tooth crowns B through two connecting rods, and adjacent connecting rods are not parallel; Mode three: the stress dispersion structure is a hollow structure.

5. A muscle stimulator according to claim 2 or 3, characterised in that, The connecting part is an integral structure, the bottom of the connecting part is connected to the top of the clinical tooth crowns B corresponding to the lower anterior teeth and the occlusal surface of the clinical tooth crowns B corresponding to the lower posterior teeth, and the top of the connecting part is connected to the bottom of the clinical tooth crowns A corresponding to the upper anterior teeth and the occlusal surface of the clinical tooth crowns A corresponding to the upper posterior teeth.

6. The muscle stimulator of claim 4, wherein, The upper jaw part and the lower jaw part are in a position in which the upper jaw teeth row and the lower jaw teeth row are perpendicular to each other, and the vertical distance between the upper jaw teeth row and the lower jaw teeth row is adjustable.

7. The muscle stimulator of claim 4, wherein, The upper jaw part and the lower jaw part are in a position in which the lower jaw is moved forward by a predetermined distance.

8. The muscle stimulator of claim 2 or 3, wherein, The clinical tooth crowns A and the clinical tooth crowns B corresponding to the canine teeth are provided with rectangular attachments for retention.

9. The myostimulant of claim 1, wherein, The upper jaw part, the lower jaw part and the connecting part are made of resin.

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