CN218922824U

CN218922824U - Invisible appliance without bracket

Info

Publication number: CN218922824U
Application number: CN202222552476.9U
Authority: CN
Inventors: 谷颖之; 谢贤聚; 白玉兴
Original assignee: Beijing Stomatological Hospital
Current assignee: Beijing Jigu Intelligent Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-04-28
Anticipated expiration: 2032-09-26

Abstract

The application relates to the technical field of oral cavity correction aids, in particular to a bracket-free invisible appliance, which comprises an invisible appliance body, wherein traction parts are arranged in molar tooth areas at two sides of the appliance body; the traction part comprises a first traction hook, a second traction hook and an elastic traction piece, wherein the first traction hook is fixed in the vicinity of the premolaring region, and the second traction hook is fixed in the distal part of the premolaring region; the hook parts of the first traction hook and the second traction hook are arranged in a back direction, two ends of the traction piece are respectively and fixedly connected to the hook parts of the first traction hook and the second traction hook and are used for traction and fixing of the invisible appliance body, the phenomenon that the appliance is unhooked due to distortion deformation of the bracket-free invisible appliance can be prevented, the phenomenon that teeth on two sides of a tooth extraction gap incline to gaps, front teeth are covered and deepened and rear teeth are opened and closed due to shortening of the total length of the appliance in the correcting process is prevented, and therefore the problem of invalid correction occurs, and the appliance is enabled to be clamped stably enough, so that the correcting effect is achieved.

Description

Invisible appliance without bracket

Technical Field

The application relates to the technical field of oral correction aids, in particular to a bracket-free invisible appliance.

Background

The bracket-free invisible appliance is an oral appliance which achieves the purpose of correcting teeth through continuous small-range tooth movement, has the advantages of transparency, comfort and capability of being taken off and worn, is favored by patients, and more patients select the bracket-free invisible appliance to replace the traditional fixed appliance for orthodontic treatment.

The common correction mode of the bracket-free invisible appliance is that traction buckles or accessories are arranged at dental sleeves of dental areas on two sides of a maxilla or a mandible, and the anchorage is enhanced through elastic traction between a planting nail and the traction arms (traction buckles) or elastic traction between a involutory molar area and the traction arms (traction buckles), so as to assist in adduction of anterior teeth.

However, because the rigidity of the bracket-free invisible appliance is insufficient, the bracket-free invisible appliance cannot be clamped stably in the correcting process, when a traction arm (traction buckle) is elastically pulled by a planting nail or an involutory molar area, under the long-term action of a biting force, the front teeth and the rear teeth areas of the bracket-free invisible appliance can deform, so that the probability of the bracket-free invisible appliance to be unhooked is increased, and the probability of inclined movement of teeth is also increased.

Disclosure of Invention

In order to prevent distortion of the bracket-free invisible appliance, the appliance is unhooked and the roller coaster effect is caused, so that a clamping and holding effect which is stable enough is realized, and the correcting effect is achieved. The application provides a bracket-free invisible appliance. The following technical scheme is adopted:

the bracket-free invisible appliance comprises an invisible appliance body, wherein the appliance body is divided into two side molar areas, a premolaring area and a front tooth area corresponding to oral teeth, and traction parts are arranged at the two side molar areas and the front tooth area of the appliance body;

the traction part comprises a first traction hook, a second traction hook and an elastic traction piece, wherein the first traction hook is fixed in the premolaring region, and the second traction hook is fixed in the middle of the premolaring region;

the hook parts of the first traction hook and the second traction hook are arranged in a back direction, and two ends of the traction piece are respectively and fixedly connected to the hook parts of the first traction hook and the second traction hook and used for traction and fixation of the invisible appliance body.

Optionally, the traction hook extends from the invisible appliance body along the direction towards the gingiva, and the hook part extends to be positioned close to the alveolar bone.

Optionally, the traction hook is attached to the gum curvature and is provided with a certain radian.

Optionally, the hook part of the traction hook is concave inwards from the side edge of the hook part to form a triangle shape.

Optionally, the traction hook and the invisible appliance body are integrally formed or fixedly connected through other forms.

Optionally, the traction member is an elastic rubber chain or an elastic wire.

Optionally, the bracket-free invisible appliance is a series of invisible tooth sockets, and the bracket-free invisible appliance, the traction and the hook traction piece are all transparent.

In summary, the present application includes the following beneficial effects:

1. the traction hooks are arranged at the positions of the non-bracket invisible appliance before the first molar and behind the cuspids, and the traction hooks on the same jaw and the same side are connected through the elastic traction pieces, so that deformation caused by tooth movement or traction direction is resisted in the wearing process of the appliance, the clamping force between the appliance and the teeth is improved and stabilized, and the probability of appliance unhooking and the probability of tooth tilting movement are reduced.

2. The application adopts first towing hook to produce the pulling force all the time to the second towing hook through the traction piece, when concentrating and carrying out effort to the appliance front tooth district, guarantees that appliance both sides rear tooth district can not use front tooth incisor edge to produce distortion as rotation center, makes the appliance rear tooth district be difficult for taking off the cover, reaches the effect of correcting.

3. The first traction hook and the second traction hook are attached to the gum curvature, foreign body sensation in the oral cavity in the correcting process is reduced, gum attachment design is achieved, the attachment degree of the appliance and the oral cavity is improved, and the comfort degree and the attractiveness of use of a patient are improved.

Drawings

FIG. 1 is a schematic view of the left molar region of the invisible appliance of the present embodiment;

FIG. 2 is a schematic view of the right molar region of the invisible appliance of the present embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic illustration of the attachment of the tow hook to the tow member of the present embodiment;

fig. 5 is a schematic view of the use of the invisible appliance of the present embodiment in oral installation.

Reference numerals illustrate: 1. invisible appliance; 2. a first towing hook; 3. a second towing hook; 4. a traction member; 5. oral gums.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a bracket-free invisible appliance, which is a transparent elastic material movable correcting device designed and manufactured in a computer-aided manner, is a continuous correcting device and achieves the purpose of correcting teeth through continuous small-range tooth movement.

The bracket-free invisible appliance 1 is made of imported polymer oral materials, is an almost completely transparent orthodontic diaphragm, and structurally comprises an invisible appliance 1 body and a traction part integrally formed with the invisible appliance 1 body, wherein the traction part is distributed on the two sides of the invisible appliance 1 relative to premolars and molar areas of human teeth, the two sides and the front end of the invisible appliance 1 are also called as premolars, premolars and molar areas in the following expression according to the distribution of human teeth, and the traction part is used for traction and fixation of the premolars and molar areas on the two sides of the invisible appliance 1, so that when the premolars are corrected and engaged, acting force acts in the vicinity of the premolars, and one end of the molar area far away from the junction with the premolars is prevented from generating distortion by taking a front incisor edge as a rotation center.

As shown in fig. 1 or 2, the traction portion includes a first traction hook 2, a second traction hook 3 and an elastic traction member 4, the first traction hook 2 is fixed in the vicinity of the premolars, the second traction hook 3 is fixed in the vicinity of the premolars, the first traction hook 2 and the second traction hook 3 are both provided with hook portions along the gum direction by the body of the invisible appliance 1, the hook portions of the first traction hook 2 and the second traction hook 3 are arranged back to back, the hook portions of the traction hooks are concaved inwards from the sides of the hook portions to form a triangle shape, and it is to be noted that the hook portions of the traction hooks can be in other similar hook shapes, and the shape of the hook portions belongs to parameters which can be modified arbitrarily by a person skilled in the art according to different use situations, and belongs to simple replacement under the technical concept of the embodiment.

As shown in fig. 4, two ends of the traction piece 4 are respectively and fixedly connected to the hook parts of the first traction hook 2 and the second traction hook 3, and traction force generated between the first traction hook 2, the second traction hook 3 and the traction piece 4 is used for fixing the front tooth area, the front molar area and the molar area of the invisible appliance 1, so that the deformation rate of the invisible appliance 1 is reduced, and the phenomenon of unhooking caused by deformation is avoided.

The first traction hook 2 and the second traction hook 3 are connected with the hook parts of the first traction hook and the second traction hook respectively, the connection parts and the invisible appliance 1 body are integrally formed, and can be fixedly connected in other forms, the connection parts extend from the invisible appliance 1 body along the direction towards the gingiva to the position where the hook parts are close to the alveolar bone, in order to enable the traction hooks to be more attached to the oral cavity of a human body, foreign body sensation in the oral cavity of a patient is reduced, a certain radian is designed at the connection parts of the traction hooks, as shown in fig. 3, the radian of the connection parts is attached to the curvature of the gingiva 5 of the oral cavity, as shown in fig. 5.

The traction piece 4 adopted in the application is an elastic rubber chain or elastic thread, has certain elastic force, meets the traction force required by the front tooth area, the front molar area and the molar area of the invisible appliance 1, ensures that the front tooth area, the front molar area and the molar area of the invisible appliance 1 cannot be bent and deformed, and meanwhile, the material of the elastic rubber chain or elastic thread cannot stimulate cheek mucous membranes and surrounding soft tissues unlike brackets and archwires.

The invisible appliance 1 without the bracket is a series of invisible tooth sleeves, so that the invisible tooth sleeves are comfortable and attractive in order to adapt to the adaptation scene of a patient, the invisible appliance 1 without the bracket, the traction and the hook traction piece 4 are transparent, the wearing process can be not easily perceived by people, and the patient can wear the invisible tooth sleeves in some important private or public places.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A bracket-free invisible appliance, which is characterized in that: the invisible appliance body is divided into two side molar areas, a premolaring area and a premolaring area corresponding to oral teeth, and traction parts are arranged at the two side molar areas and the premolaring area of the appliance body;

2. The bracket-less invisible appliance according to claim 1, wherein: the traction hook extends from the invisible appliance body towards the gum direction, and the hook part of the traction hook extends to be positioned close to the alveolar bone.

3. The bracket-less invisible appliance according to claim 2, wherein: the traction hook is attached to the gum curvature and is provided with a certain radian.

4. The bracket-less invisible appliance according to claim 2, wherein: the hook part of the traction hook is inwards concave from the side edge of the traction hook to form a triangle shape.

5. The bracket-less invisible appliance according to claim 1, wherein: the traction hook and the invisible appliance body are integrally formed.

6. The bracket-less invisible appliance according to claim 1, wherein: the traction piece is an elastic rubber chain or an elastic line.

7. The bracket-less invisible appliance according to claim 1, wherein: the non-bracket invisible appliance is a series of invisible tooth sleeves, and the non-bracket invisible appliance, the traction and the hook traction piece are all transparent.