CN112932702A

CN112932702A - Movable appliance for expanding dental arch

Info

Publication number: CN112932702A
Application number: CN202110237260.0A
Authority: CN
Inventors: 夏继明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-06-11

Abstract

The invention belongs to the technical field of orthodontic treatment, and particularly relates to a movable appliance for expanding dental arches, which comprises: the dental mouthpiece comprises an upper dental mouthpiece and a lower dental mouthpiece, the upper dental mouthpiece and the lower dental mouthpiece are fixed into a whole through a bonding occlusal surface, two ends of an anchorage body are embedded into the side wall of the dental mouthpiece close to the tongue side, two ends of a steel wire body are embedded into the side wall of the dental mouthpiece close to the cheek side, and the dental mouthpiece is driven by the resilience force of the steel wire body to expand dental arches of upper and lower jaws.

Description

Movable appliance for expanding dental arch

Technical Field

The invention relates to the technical field of orthodontic, in particular to a movable appliance for expanding dental arches.

Background

The human teeth are closely arranged into an arc shape, the arc-shaped arrangement of the teeth is called as an arch, various teeth are strictly and orderly arranged on the arch, the biting tendencies of the upper forceps and the lower forceps keep the entrance of the alimentary canal, and simultaneously, the complete arch and the teeth jointly support the cheeks and the lips, so that the human face is fully and scientifically favored. However, some people, especially children before adolescence, often have crowding dentition on the dental arch because the bony substance in the palatal centre grows relatively slowly and the length and width of the dental arch do not meet the requirement of supporting the growth of teeth, thus affecting the normal chewing function and oral digestive function of the teeth and seriously affecting the normal development of the face. In the prior art, the movable appliance is widely applied to the technical field of expanding dental arch orthodontics because the movable appliance has the advantages of flexible belt taking, no influence on the appearance and the like, and comprises a tooth socket and an expanding mechanism, wherein the tooth socket is sleeved on the dental arch of the upper jaw or the lower jaw, and the expanding mechanism applies tension to the tooth socket to drive the tooth socket to expand the dental arch.

Chinese utility model patent CN205913411U discloses an arch expander, including two at least tooth sockets and support, wherein the tooth socket is installed respectively on the tooth of both sides, and between the adjacent tooth socket was fixed in to the support, be equipped with the metal location steel wire body in the tooth socket, this utility model adopts tooth socket and support complex structure, has improved the reliability of tooth correction, and it is effectual to correct, does benefit to the health of tooth, this utility model the arch expander can adjust the arch that expands of adaptation according to the size that the arch needs to enlarge the distance around to the final result of expansion arch and the inconsistent problem of design target have been solved. However, the existing orthodontic expansion dental arch movable appliance is used for independently expanding the dental arch of the upper jaw or the lower jaw respectively, so that the operation easily causes malocclusion of the upper and lower dental arch teeth, the normal chewing of the teeth is directly influenced, and even the dental crowns of the upper and lower dental teeth are damaged due to disordered occlusion.

Disclosure of Invention

The invention aims to provide a new technical solution for solving the problem that the occlusal surfaces of upper and lower jaws of teeth are easy to be dislocated because the upper and lower jaws cannot be expanded simultaneously in the existing dental arch expanding technology.

Specifically, the present invention provides an arch-expanding movable appliance comprising: the tooth socket comprises an upper tooth socket used for wrapping upper jaw arch teeth and a lower tooth socket used for wrapping lower jaw arch teeth, the upper tooth socket and the lower tooth socket are fixed into a whole through a bonding occlusal surface, the occlusal surface comprises a first bicuspid occlusal surface in the upper jaw arch teeth and a second bicuspid occlusal surface, a first molar occlusal surface and a second molar occlusal surface, two ends of the anchorage body are respectively symmetrical and embedded into two side wall bodies close to the tongue side of the tooth socket, in use, the anchorage body is abutted with the upper jaw of the oral cavity so as to fix the tooth socket in the oral cavity, the steel wire body is horizontally symmetrical and embedded into the two side wall bodies close to the buccal side of the tooth socket, the steel wire body is arc-shaped on the horizontal plane and consistent with the shape of the upper jaw arch, in use, the steel wire body drives the tooth socket to generate an expansion force to the buccal side through resilience characteristics, and the effect of expanding the dental arch is achieved.

Furthermore, the vertical surface of the steel wire body is in sine wave shape and distributed along the arc of the horizontal plane, so that the stress surface of the tooth socket is increased, and the upper tooth socket and the lower tooth socket are ensured to be uniformly stressed.

Further, the occlusal surfaces comprise a first bicuspid occlusal surface, a second bicuspid occlusal surface, a first molar occlusal surface, a second molar occlusal surface and a third molar occlusal surface of the upper and lower arch teeth.

Furthermore, the tooth socket is manufactured by utilizing a model of the upper jaw dental arch and the lower jaw dental arch printed by a 3D technology.

Furthermore, the diameter of the steel wire body is 0.3-0.8 mm.

Furthermore, the branched antibodies are made of metal materials and are in an omega shape, and two ends of the omega shape are symmetrically embedded into the side wall bodies at two sides of the tooth socket close to the tongue.

Furthermore, the steel wire body is made of elastic 316 stainless steel wires.

Furthermore, the tooth socket is made of heat vulcanization type silicon rubber.

Compared with the existing dental arch expansion appliance, the appliance has the following beneficial effects:

1. the appliance realizes simultaneous expansion of the upper and lower dental arches by bonding the occlusal surfaces of the upper and lower tooth sockets into a whole, thereby avoiding the problem of disordered occlusion of the upper and lower dental arches in the process of independently expanding the upper dental arch or the lower dental arch.

2. The appliance is a movable appliance, is convenient to mount and take off, and a user can flexibly master the time and the mode for cleaning the appliance according to the self requirement, thereby more effectively ensuring the oral hygiene in the wearing process.

3. The appliance has the advantages of simple and firm structure, convenient manufacture, wide elastic force selection range and easy control, can protect teeth while expanding dental arches, and can fully take care of the image maintenance of users while using.

Drawings

Fig. 1 is a schematic top view of the orthosis of the present invention.

Fig. 2 is a perspective view of fig. 1.

Shown in the figure: 1-brace, 1.1-upper brace, 1.2-lower brace, 2-ramus antibody, 3-steel filament, 4-first bicuspid occlusal surface, 5-second bicuspid occlusal surface, 6-first molar occlusal surface, 7-second molar occlusal surface.

Detailed Description

The present invention will be further described with reference to fig. 1-2.

As shown in fig. 1-2, an arch-expanding movable appliance includes: the tooth socket comprises a tooth socket 1, an anchorage body 2 and a steel wire body 3, wherein the tooth socket 1 comprises an upper tooth socket 1.1 used for wrapping upper jaw arch teeth and a lower tooth socket 1.2 used for wrapping lower jaw arch teeth, the upper tooth socket 1.1 and the lower tooth socket 1.2 are fixed into a whole through a bonding occlusal surface, the occlusal surface comprises a first bicuspid occlusal surface 4, a second bicuspid occlusal surface 5, a first molar occlusal surface 6 and a second molar occlusal surface 7 in the upper jaw arch teeth and the lower jaw arch teeth, two ends of the anchorage body 2 are respectively and symmetrically embedded into two side wall bodies on the lingual side of the tooth socket 1, in use, the anchorage body 2 is abutted against the upper jaw of an oral cavity so as to fix the tooth socket 1 in the oral cavity, the steel wire body 3 is horizontally and symmetrically embedded into the two side wall bodies on the buccal side of the tooth socket 1, the steel wire body 3 is in an arc shape on the horizontal plane and is consistent with the shape of the upper jaw arch teeth, in use, the steel wire body 3 drives the tooth socket 1, the effect of enlarging dental arch is realized.

Furthermore, the vertical surface of the steel wire body 3 is in sine wave shape and is distributed along the arc of the horizontal plane, so that the stress surface of the tooth socket 1 is enlarged, and the uniform stress of the upper tooth socket 1.1 and the lower tooth socket 1.2 is ensured.

Further, the occlusal surfaces include a first bicuspid occlusal surface 4, a second bicuspid occlusal surface 5, a first molar occlusal surface 6, a second molar occlusal surface 7, and a third molar occlusal surface (not shown) of the upper and lower arch teeth.

Further, the dental mouthpiece 1 is manufactured by using a model of the upper and lower jaw dental arches printed by a 3D technique.

Further, the diameter of the steel wire body 3 is 0.3-0.8 mm.

Furthermore, the branched antibodies 2 are made of metal materials and are in an omega shape, and two ends of the omega shape are symmetrically embedded into the side wall bodies at two sides of the tooth socket 1 close to the tongue.

Furthermore, the steel wire body 3 is made of an elastic 316 stainless steel wire.

Further, the tooth socket 1 is made of heat vulcanization type silicon rubber.

The appliance of the invention can be used for simultaneously expanding the upper and lower dental arches of children of age 12 years, and the data obtained by practical application is displayed by taking the appliance worn for 6-8 hours every day as a standard: the appliance with the diameter phi of 0.3mm of the steel wire expands the dental arch not less than 1mm every week; the appliance with the diameter phi of 0.45mm of the steel wire expands the dental arch not less than 1.5mm every week; the appliance with the diameter phi of 0.6mm of the steel wire expands the dental arch not less than 2mm every week; different age groups have different correction effects due to different development degrees of dental arches, and the effect of enlarging dental arches every week is compared with the standard value, and the error range is within +/-0.5 mm.

The present invention is not limited to the above-described embodiments, which are described in the specification and illustrated only for illustrating the principle of the present invention, but various changes and modifications may be made within the scope of the present invention as claimed without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims.

Claims

1. An arch-expanding movable appliance, the appliance comprising: facing, prop up antibody and steel wire body, wherein the facing is including the last facing that is used for wrapping up upper jaw dental arch tooth and the lower facing that is used for wrapping up lower jaw dental arch tooth, it is fixed as an organic whole through bonding occlusal surface with lower facing to go up the facing, the occlusal surface includes the first bicuspid occlusal surface in the tooth of upper and lower jaw dental arch, the second bicuspid occlusal surface, first molar occlusal surface and second molar occlusal surface, it is internal that the embedding facing that the anchorage body both ends are symmetrical respectively leans on the both sides lateral wall of lingual side, it is internal that the embedding facing of steel wire body horizontal symmetry leans on the both sides lateral wall of buccal side, the steel wire body is the arc on the horizontal plane and is unanimous with upper jaw dental arch appearance.

2. The orthosis of claim 1 wherein said vertical surface of said wire body is arranged in an arc of a sine wave configuration along a horizontal plane.

3. The orthosis of claim 2 wherein said wire body is formed from 316L spring wire.

4. The orthosis of claim 3 wherein said wire body has a wire diameter of 0.3 to 0.8 mm.

5. The appliance of claim 1, wherein the mouthpiece is made of heat-cured silicone rubber.

6. The appliance of claim 1, wherein the occlusal surfaces comprise a first bicuspid occlusal surface, a second bicuspid occlusal surface, a first molar occlusal surface, a second molar occlusal surface, and a third molar occlusal surface of the maxillary and mandibular arch teeth.

7. The appliance according to claim 1, wherein said antibodies are made of metal material and are shaped in omega form.