CN211355972U

CN211355972U - Tooth appliance

Info

Publication number: CN211355972U
Application number: CN201921941003.XU
Authority: CN
Inventors: 韩爽; 赵军伟; 夏平
Original assignee: Hefei Stomatological Hospital
Current assignee: Hefei Stomatological Hospital
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-08-28
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses a tooth appliance, which comprises an appliance body for correcting the malformation of the jaw, wherein the appliance body is provided with a coating groove for coating teeth; the filler is arranged in the coating groove and used for filling the vacuoles; and the positioning bulge is arranged on the wall of the coating groove and used for fixing the filler. The tooth appliance can avoid repeated falling of the filler, and solves the problems of unattractive appearance caused by vacuole in the mouth of a patient and frequent diagnosis caused by falling of the filler.

Description

Tooth appliance

Technical Field

The utility model relates to a technical field is corrected to the tooth jaw deformity, especially relates to a tooth correction device.

Background

The conventional orthodontic appliances for dentognathic deformities, which are orthodontic by bonding metal or ceramic brackets to teeth, are exposed to the labial side of the teeth, affect the personal image of the patient on the one hand, are inconvenient to maintain oral hygiene on the other hand, and may scratch the surface tissues of the oral cavity. In view of this, the bracket-free invisible orthodontic technology and the orthodontic device are widely popularized, and the bracket-free invisible orthodontic device is a transparent orthodontic device, can meet the requirement of a patient on beauty and is convenient to clean.

At present, the bracket-free invisible appliance is used for treating the dental deformity with normal dental arch length and insufficient total tooth width, and the two situations are that firstly, vacuole (namely, gap between two adjacent teeth) is generated due to congenital missing teeth, and in the correction period, the vacuole needs to be maintained or even expanded so as to be convenient for the correction of the missing teeth, so the vacuole exists all the time; the second is cavitation caused by tooth extraction, which gradually shrinks during the correction, but still remains for a certain time.

In order to ensure the aesthetic effect of the patient wearing the bracket-free invisible appliance in the oral cavity, an oral doctor can place fillers with the color similar to that of teeth in the appliance to fill the defects generated by the vacuoles. However, the retention of the filler within the appliance is poor, which makes the filler prone to fall off, especially during removal of the concealed appliance from the mouth by the patient, and further causes much trouble to the patient and the dentist.

Therefore, how to ensure the fixing effect of the filler is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ware is rescued to tooth, this ware is rescued to tooth can avoid the filler to drop repeatedly, has solved because of having the vacuole in the patient's mouth and has caused the problem that is not pleasing to the eye and frequently see a doctor because of the filler drops.

In order to achieve the above object, the present invention provides a tooth appliance, including: the orthodontic body is used for correcting the dentognathic deformity and is provided with a coating groove for coating teeth; the filler is arranged in the coating groove and used for filling the vacuoles; and the positioning bulge is arranged on the wall of the coating groove and used for fixing the filler.

Preferably, the positioning bulge is provided with an expansion section with the cross section size increasing along the protruding direction of the positioning bulge, and the expansion section is provided with a clamping surface used for clamping and fixing the filler.

Preferably, the snap surface is a flat surface.

Preferably, the positioning protrusion is shaped like a quadrangular frustum pyramid.

Preferably, the cross-section of the positioning protrusion along the direction perpendicular to the penetrating direction of the coating groove is in a right trapezoid shape, two right angles of the right trapezoid shape are close to the gum, and an acute angle and an obtuse angle of the right trapezoid shape are far away from the gum.

Preferably, the cross section of the positioning protrusion along the direction parallel to the penetrating direction of the coating groove is isosceles trapezoid.

Preferably, the positioning protrusion is disposed on a tongue-side groove wall of the covering groove.

Compared with the prior art, the utility model provides a ware is rescued to tooth guarantees the filler and rescues this body firm in connection through the location arch. Particularly, the positioning protrusion is arranged on the groove wall of the coating groove and protrudes towards the direction far away from the groove wall, so that the groove width of the part, provided with the positioning protrusion, of the coating groove is reduced, when the filler has a falling trend, the filler abutted against the positioning protrusion applies an acting force to the positioning protrusion, correspondingly, the positioning protrusion applies a counterforce to the filler to limit the movement trend of the filler separated from the coating groove, the filler is difficult to fall off under the action of the positioning protrusion, the correction experience of a patient is improved, and the workload of a stomatologist is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a dental appliance provided by the present invention, taken perpendicular to the direction in which the gums extend;

FIG. 2 is a schematic cross-sectional view of the dental appliance of the present invention taken parallel to the direction in which the gums extend;

wherein,

1-correcting body, 11-coating groove, 2-filler, 3-positioning projection and 31-clamping surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and 2, fig. 1 is a schematic cross-sectional view of a dental appliance provided by the present invention, the cross-sectional view being perpendicular to the extending direction of the gum; fig. 2 is a schematic cross-sectional view of the dental appliance of the present invention along a direction parallel to the extension of the gum.

The utility model provides a tooth appliance, as shown in fig. 1 and 2, the tooth appliance mainly comprises an appliance body 1 and a filler 2. The correcting body 1 is provided with a coating groove 11 for coating teeth, so that the correcting body 1 has the function of correcting the dentognathic deformity, the shape and the structure of the correcting body 1 are determined according to the actual conditions of the arrangement of the teeth of a patient and the like, and the correcting body is not unfolded any more, so long as the coating groove 11 can tightly coat the teeth; and the filler 2 is arranged in the coating groove 11 and is used for filling vacuoles between teeth so as to ensure the beauty of the teeth of a patient.

It should be mentioned that the groove wall of the covering groove 11 is provided with the positioning protrusion 3, that is, the correction body 1 and the positioning protrusion 3 are integrally formed, and the positioning protrusion 3 protrudes toward the direction away from the groove wall, so that the groove width of the portion of the covering groove 11 having the positioning protrusion 3 is reduced, wherein the "groove width" refers to the span dimension of the inner space of the covering groove 11 along the lip and tongue direction; when the filler 2 tends to fall off, the filler 2 abutting against the positioning projection 3 applies a force to the positioning projection 3, and accordingly, the positioning projection 3 applies a reaction force to the filler 2 to restrict the tendency of the filler 2 to move away from the covering groove 11, so that the filler 2 is less likely to fall off by the positioning projection 3.

The manner in which the present dental appliance is made is briefly described here:

the first step is as follows: three-dimensional scanning and reconstruction are carried out on the oral cavity female die or the plaster male die by utilizing a laser scanning technology, a chromatography scanning technology or an industrialized CT technology and the like; the second step is that: automatically measuring the reconstructed digital model, confirming the position of the vacuole and the preset position of the positioning protrusion 3 according to the measurement data of the items such as teeth, dental arches, basic bones and the like, and further performing three-dimensional rapid forming on the three-dimensional dental jaw mold in each correction stage; the third step: manufacturing a correction body 1 on the formed female die; the fourth step: the packing 2 (such as self-hardening plastic and tooth filling resin) similar to the color of the teeth is filled in the packing groove 11, so that the packing 2 is packed on the positioning bulge 3, and the packing 2 can be ensured to completely fill the vacuole after being formed (namely the shape of the teeth).

Since the body 1 is soft and the material of the positioning protrusion 3 is the same as the material of the body 1, the positioning protrusion 3 is easily bent and deformed, in order to further improve the fixing effect of the positioning protrusion 3 to the filler 2, the positioning protrusion 3 has an expansion section with an increased cross-sectional dimension along the protruding direction, the expansion section has a clamping surface 31 abutting against the filler 2, the extending direction of the clamping surface 31 (i.e. the protruding direction of the positioning protrusion 3) is also opposite to the falling direction of the filler 2, in other words, the clamping surface 31 extends towards the protruding direction away from the positioning protrusion 3, so that the cross-sectional dimension of the positioning protrusion 3 at the expansion section is increased when viewed from the protruding direction of the positioning protrusion 3, and the expansion section "hooks" the filler 2 in the covering groove 11 through the clamping surface 31, so that even if the positioning protrusion 3 is bent and deformed by the filler 2, the snap-fit surface 31 can also function to snap-fit the filler 2.

In order to facilitate the manufacture of the dental appliance, as shown in fig. 1 and 2, the engaging surface 31 is preferably a flat surface, but the engaging surface 31 may also be designed as a stepped surface, a circular arc surface or other shapes capable of forming an expansion section, which will not be described in detail herein.

In order to further facilitate the manufacture of the dental appliance, it is preferable that the positioning projections 3 have a quadrangular frustum pyramid shape in which the bottom surface having a smaller area is connected to the groove wall of the covering groove 11 as shown in fig. 1 and 2, and among all the side surfaces of the quadrangular frustum pyramid, the side surface which is not vertically inclined with respect to the two bottom surfaces of the quadrangular frustum pyramid is the engaging surface 31.

The following preferred embodiments are given here for the design of the specific shape of the positioning projection 3:

in the first embodiment, considering that the filler 2 is likely to fall toward the opening direction of the covering groove 11 in the process of taking out the correction body 1 from the oral cavity of the patient, and the filler 2 is not likely to fall off due to abutting against the gum in the process of putting the correction body 1 in the oral cavity of the patient, for this reason, as shown in fig. 1, the section of the positioning protrusion 3 along the direction perpendicular to the penetrating direction of the covering groove 11 is preferably a right trapezoid, wherein two right angles of the right trapezoid are both arranged close to the gum, an acute angle and an obtuse angle of the right trapezoid are both far away from the gum, and a hypotenuse between the acute angle and the obtuse angle is a section line of the clamping surface 31.

It should be noted that, from the perspective of fig. 1, the gum is located above the filler 2; compared with the obtuse angle, the acute angle is far away from the groove wall of the coating groove 11 directly connected with the positioning protrusion 3, so that the positioning protrusion 3 has an expansion section.

In the second embodiment, after the patient takes out the correcting body 1 from the mouth, the filler 2 is also easy to fall off along the penetrating direction of the covering groove 11, so as shown in fig. 2, preferably, the section of the positioning protrusion 3 along the penetrating direction parallel to the covering groove 11 is an isosceles trapezoid, wherein two waists of the isosceles trapezoid are the section lines of the clamping surface 31.

It should be noted that, compared with the obtuse angle of the isosceles trapezoid, the acute angle of the isosceles trapezoid should be far away from the groove wall of the coating groove 11 directly connected to the positioning protrusion 3, so that the positioning protrusion 3 has an expansion section.

In order to ensure the aesthetic effect of the dental appliance, as shown in fig. 1, the positioning protrusion 3 is disposed on the tongue-side groove wall of the covering groove 11 to shield the positioning protrusion 3 by the filler 2, thereby ensuring that the positioning protrusion 3 on the tongue side of the filler 2 cannot be seen directly by others.

As can be seen from the shape of the lower portion of the filler 2 in fig. 1, the surface on the right side of the filler 2 is recessed toward the left side of the filler 2, that is, the right side in fig. 1 is the lingual side, and the left side in fig. 1 is the labial side. In addition, if the cavity at the posterior teeth is filled with the filler 2, the positioning projection 3 may be provided on a labial (that is, buccal) groove wall of the covering groove 11.

The tooth correcting device provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A dental appliance, comprising:

the orthodontic body (1) is used for correcting the dentognathic deformity, and the orthodontic body (1) is provided with a coating groove (11) for coating teeth;

the filler (2) is arranged in the coating groove (11) and is used for filling up the vacuoles;

and the positioning bulge (3) is arranged on the wall of the coating groove (11) and used for fixing the filler (2).

2. The dental appliance as claimed in claim 1, characterized in that the positioning projection (3) has an expansion section with an increasing cross-sectional dimension in the direction of projection thereof, which expansion section has a clamping surface (31) for clamping the filling (2).

3. The dental appliance according to claim 2, wherein the engagement surface (31) is a flat surface.

4. The dental appliance according to claim 3, wherein the positioning projections (3) are quadrangular frustum pyramid shaped.

5. The dental appliance according to claim 4, wherein the cross section of the positioning protrusion (3) along the direction perpendicular to the penetration direction of the coating groove (11) is a right trapezoid, wherein two right angles of the right trapezoid are close to the gum, and an acute angle and an obtuse angle of the right trapezoid are far away from the gum.

6. The dental appliance according to claim 4, characterized in that the cross section of the positioning projection (3) along a direction parallel to the through direction of the coating slot (11) is isosceles trapezoid.

7. The dental appliance as claimed in any one of claims 1 to 6, wherein the positioning projection (3) is provided on a lingual groove wall of the covering groove (11).