CN211750180U

CN211750180U - Shell-like dental instrument

Info

Publication number: CN211750180U
Application number: CN202020144920.1U
Authority: CN
Inventors: 王猛; 周可拓; 黄雷
Original assignee: Wuxi Ea Medical Instruments Technologies Ltd
Current assignee: Wuxi Ea Medical Instruments Technologies Ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-10-27
Anticipated expiration: 2030-01-22

Abstract

The utility model provides a shell-shaped dental appliance which is used for orthodontic correction and is characterized by comprising a shell-shaped body which is integrated into a shell and forms a cavity for accommodating teeth; the lingual bracket is bonded on the lingual side of the outer contour of the shell-shaped body; and the elastic body is arranged on the lingual bracket and provides additional correcting force for the shell-shaped body. The utility model discloses an aspect installation is simple with low costs, and on the other hand can provide better lip cheek tongue side control.

Description

Shell-like dental instrument

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a shelllike dental instrument.

Background

With the improvement of living standard, people have stronger and stronger demand on tooth orthodontics, on one hand, the dental health problem can be improved, and on the other hand, the tooth arrangement change deformation image is changed. Invisible orthodontic treatment has become very popular in recent years due to aesthetic requirements during the treatment process. The main types of the invisible orthodontics on the market are 2: one is a bracket-free invisible dentognathic deformity appliance, and the other is a tongue side bracket invisible appliance.

A tongue side bracket invisible appliance is mainly used for bonding a tongue side bracket on the tongue side of a user and matching with an arch wire to perform orthodontic treatment. The shape of the bottom plate of the lingual bracket needs to be completely matched with the lingual side of each tooth, and precision casting or 3D printing is adopted, so that the cost is high, and the universality is poor. In addition, the operation level of a doctor is required to be higher in the installation process, but the steel wire treatment can provide larger correction force, and particularly, the force is easier to apply in the lip, cheek and tongue directions.

The bracket-free invisible dentognathic deformity appliance has lower cost than a tongue side bracket invisible appliance, is convenient to arrange and wear, and has lower requirements on the skills of doctors. The force application in the mesial-distal direction is controlled better than in the labial-buccal-lingual direction, and for example, the distal movement of the molars is achieved more effectively than the arch expansion.

In view of the above, there is a need for a new shell-like dental instrument that is simple and inexpensive to install and that provides better control of the labial, buccal and lingual sides.

SUMMERY OF THE UTILITY MODEL

The application provides a shell-shaped dental appliance which is used for orthodontic correction and is characterized by comprising a shell-shaped body, wherein the shell-shaped body is integrated into a shell and forms a cavity for accommodating teeth; the tongue side bracket is bonded, welded or detachably connected to the tongue side of the outer contour of the shell-shaped body; and the elastic body is arranged on the lingual bracket and provides additional correcting force for the shell-shaped body.

In some embodiments, the lingual side of the outer profile of the shell-like body has an outwardly convex structure for adhesively bonding, welding or removably attaching lingual brackets. Outward in this case refers to away from the teeth, toward the lingual side.

Further, the top surface of the protruding structure is a plane or an arc surface.

In some embodiments, the lingual brackets are standard pieces that do not require individualized customization for each user's teeth. Namely, the shape of the bottom plate of the lingual bracket does not need to be completely matched with the lingual side of each tooth, and only needs to be matched with the shape of the top surface of the bulge structure.

In some embodiments, the bottom surface of the lingual bracket is planar or curved.

Furthermore, a plurality of salient points or linear bulges are arranged on the bottom surface of the lingual bracket.

In some embodiments, the elastomer is one of a rubber band, a spring, or an archwire.

Preferably, the arch wire is a titanium alloy arch wire or a stainless steel arch wire.

In some embodiments, the shell-like body, an anterior labial molting portion, is welded or removably attached to the lingual bracket on the lingual side of the shell-like body. Thus, the teeth can be exposed to the outside, the shell-shaped diaphragm is not easy to see even if the teeth are observed at a close distance, and the lingually-oriented force of the shell-shaped body on the anterior teeth can be eliminated or reduced.

Drawings

The above and other features of the present application will be further explained with reference to the accompanying drawings and detailed description thereof. It is appreciated that these drawings depict only several exemplary embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope. The drawings are not necessarily to scale and wherein like reference numerals refer to like parts, unless otherwise specified.

FIG. 1 is a schematic view of a shell-like dental implement according to an embodiment of the present invention;

fig. 2 is a schematic view of a shell-shaped body according to an embodiment of the present invention;

fig. 2A is a cross-sectional view of a raised structure on a shell-shaped body according to an embodiment of the present invention;

fig. 2B is a cross-sectional view of a projection structure on a shell-like body according to yet another embodiment of the present invention;

FIG. 3 is a diagram of a lingual bracket according to an embodiment of the present invention;

fig. 4 is a schematic view of an orthopedic appliance in the prior art provided by the present invention;

FIG. 5 is a schematic diagram illustrating a comparison of the shape change of the orthopedic appliance in the prior art according to the present invention;

FIG. 6 is a schematic view of a shell-like dental implement according to yet another embodiment of the present invention;

FIG. 7 is a schematic view of a shell-like dental implement according to yet another embodiment of the present invention;

fig. 8 is a schematic view of a shell-shaped body according to another embodiment of the present invention.

Detailed Description

The following detailed description refers to the accompanying drawings, which form a part of this specification. The exemplary embodiments mentioned in the description and the drawings are only for illustrative purposes and are not intended to limit the scope of the present application. Those skilled in the art, having benefit of this disclosure, will appreciate that many other embodiments can be devised which do not depart from the spirit and scope of the present invention as described herein. It should be understood that the aspects of the present application, as described and illustrated herein, may be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are within the scope of the present application.

The inventors of the present application have made extensive efforts to develop a new shell-like dental instrument.

As shown in FIG. 1, a shell-like dental instrument 100 in one embodiment of the present application is schematically illustrated.

A shell-like dental appliance 100 for orthodontic treatment includes a shell-like body 110, lingual brackets 120 and an elastomer 130.

The shell-like body 110 is a one-piece shell and forms a tooth-receiving cavity having a geometry for repositioning a patient's tooth from a first configuration to a second configuration, the geometry of the cavity being determined based on and substantially conforming to the second configuration of the patient's tooth.

The lingual bracket 120 is bonded, welded or detachably connected to the lingual side of the shell-shaped body 110, and at least 2 lingual brackets 120 are provided on one shell-shaped body 110.

The elastomer 130, mounted on the lingual bracket 120, provides additional corrective force to the shell-like body.

In some embodiments, the elastomer 130 is one of a rubber band, a spring, or an archwire.

Preferably, the arch wire is an orthodontic steel wire such as a nickel-titanium arch wire, a stainless steel arch wire or a Bata titanium alloy arch wire.

As shown in fig. 2, a shell-like body 110 is schematically illustrated.

In some embodiments, the lingual side of the shell body 110 has an outwardly projecting structure 111 for, welding, or removably attaching the lingual bracket 120. Further, the outward direction refers to a direction away from the teeth, toward the lingual side.

As shown in fig. 2A and 2B, a side sectional view of the bump structure 111 is schematically shown.

The convex structure 111 has a top surface of a plane 1111 or an arc 1112. Further, the cambered surface can be a convex surface or a concave surface.

As shown in FIG. 3, a lingual bracket 120 is schematically illustrated.

In some embodiments, the lingual bracket 120 is a standard component that is not customized to each user's teeth, i.e., the bottom surface of the lingual bracket 120 need not be completely conformed to the lingual side of each tooth, but rather to the top surface of the raised structure 111.

In some embodiments, the bottom surface of lingual bracket 120 is planar or curved.

Furthermore, a plurality of salient points or linear bulges are arranged on the bottom surface.

As shown in fig. 4, a conventional appliance of the prior art is schematically illustrated. The appliance covers the crown portion substantially entirely on the anterior labial side.

As shown in fig. 5, the overall deformation of the appliance is compared when the conventional appliance in the prior art is used for performing the arch expansion correction, wherein the dotted line is before the arch expansion, and the solid line is after the arch expansion. When the arch of the posterior teeth area is expanded, the tongue direction stress of the anterior teeth area can be generated because the whole length of the appliance is constant. The lingual force is applied through the anterior labial side portion appliance body, but this force is not desirable and requires additional design to compensate, affecting the effect of the appliance.

As shown in FIG. 6, a shell-like dental instrument 200 in yet another embodiment of the present application is schematically illustrated.

This embodiment is the same as the above-described embodiment, and the same portions will not be described again. The difference is that the anterior labial side of the shell-shaped body 210 is completely abraded, only the lingual side of the anterior area is reserved for bonding, welding or detachably connecting the lingual bracket 220, and the elastic body 230 is matched for arch expansion treatment, preferably, the elastic body 230 is an orthodontic steel wire. Therefore, the anterior teeth can be directly exposed outside, the shell-shaped diaphragm is not easy to see even if the anterior teeth are observed at a close distance, and meanwhile, the lingually applied force of the shell-shaped body to the anterior teeth can be eliminated or reduced, so that the force can be more accurately applied to the appliance.

As shown in FIG. 7, a shell-like dental implement 300 is schematically illustrated in yet another embodiment of the present application.

The shell-like dental instrument 300 and the shell-like dental instrument 200 are not described in the same point, but are different in that the shell-like body 310 has an area greater than 1/2 removed from the anterior labial side.

As shown in fig. 8, a shell-like body 410 in yet another embodiment of the present application is schematically illustrated.

The incisor ends of the anterior teeth of the shell-like body 410 are abraded.

While various aspects and embodiments of the disclosure are disclosed herein, other aspects and embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification. The various aspects and embodiments disclosed herein are for purposes of illustration only and are not intended to be limiting. The scope and spirit of the application are to be determined only by the claims appended hereto.

Unless otherwise expressly stated, the terms and phrases used herein, and variations thereof, are to be construed as open-ended as opposed to limiting. In some instances, the presence of an extensible term or phrases such as "one or more," "at least," "but not limited to," or other similar terms should not be construed as intended or required to imply a narrowing in instances where such extensible terms may not be present.

Claims

1. A shell-like dental appliance for orthodontic correction, comprising:

a shell-shaped body which is integrated into a shell shape and forms a cavity for accommodating teeth;

the tongue side bracket is bonded, welded or detachably connected to the tongue side of the outer contour of the shell-shaped body; and

and the elastic body is arranged on the lingual bracket and provides additional correction force for the shell-shaped body.

2. A shell-like dental instrument as in claim 1, wherein the lingual side of the outer profile of the shell-like body has a raised structure for adhesively bonding, welding or removably attaching lingual brackets.

3. A shell-like dental instrument as in claim 2, wherein the raised feature top surface is planar or curved.

4. A shell-like dental implement according to claim 1, wherein the lingual brackets are standard pieces that do not require individualized customization to each user's teeth.

5. A shell-like dental instrument as in claim 4, wherein the bottom surface of the lingual bracket is planar or curved.

6. A shell-like dental implement according to claim 5, wherein the lingual bracket has a plurality of bumps or linear projections on its underside.

7. A shell-like dental instrument as in claim 1, wherein the elastomer is one of a rubber band, a spring, or an archwire.

8. A shell-like dental instrument as in claim 1, wherein the shell-like body eliminates or reduces lingual forces on anterior teeth.

9. A shell-like dental implement according to claim 8, wherein the shell-like body, the anterior labial side, is abraded in its entirety.

10. A shell-like dental implement according to claim 8, wherein the shell-like body, anterior labial side, has an area of greater than 1/2 ground away.