CN211834802U

CN211834802U - A plant draw gear for orthodontic

Info

Publication number: CN211834802U
Application number: CN202020197509.0U
Authority: CN
Inventors: 李涛; 张亚丽
Original assignee: First Peoples Hospital of Qujing
Current assignee: First Peoples Hospital of Qujing
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-11-03
Anticipated expiration: 2030-02-21

Abstract

An implant traction device for orthodontics comprises an implant nail, a tension spring, a hook body, a dental crown, a bracket and an arch wire; the implant nail is fixed on the alveolar bone, the support grooves are bonded on the surfaces of the dental crowns, the arch wire penetrates through the support grooves to connect a plurality of support grooves on different dental crowns, and the hook body penetrates through the support grooves to be connected with the implant nail through the tension spring. The hook body is characterized in that a hook is arranged at the tail end of the hook body, two ends of the hook body are folded into a triangle, the folded angle position is in a circular ring shape, two ends of the hook body are respectively fixed in the bracket, an inclined angle structure is formed between the horizontal vertical plane where the hook body and the base part are located when the hook body is viewed from the side, and the inclined angle alpha is 10-15 degrees, so that the traction hook is close to the impedance center of the dental crown as much as possible, and the stimulation to the dental arch of the surrounding tissues is avoided as much as. The hook body is triangular, the two bottom corners are fixed in the bracket, the vertex angle is pulled, the moment generated by the pulling force is transferred to the bracket and the arch wire, the target tooth is free from the action of the moment, and the traction effect on the target tooth is good.

Description

A plant draw gear for orthodontic

Technical Field

The utility model relates to an orthodontic correction technical field, concretely relates to a plant draw gear for orthodontic.

Background

In the oral treatment process, the implant implantation and the long-term effect can be influenced by the insufficient vertical height of the alveolar bone, so the insufficient vertical height of the alveolar bone is corrected by adopting a traction osteogenesis technology. Authorization notice number: CN 203468765U discloses an orthodontic traction hook and orthodontic device which can make teeth move integrally, the device adopts two ends of a base part to be connected with a hook body and a retention part respectively and vertically, and forms a step shape, the retention part is inserted in a vertical tube in a tooth bracket in a bolt way to fix the traction hook on a target tooth, the base part is clung to the upper part of the bracket, when a hook at the top end of the hook body is subjected to traction force in one direction, an acting point is close to the impedance center of the target tooth, so that the target tooth generates integral translation; but the following disadvantages still exist in the practical use process:

1. the device sets up the action point at the impedance center that is close target tooth through the coupler body, because the cantilever installation of coupler body, the pulling force that the coupler body received and the action point of force are not on a straight line when pulling the coupler body, and the pulling force can produce moment on the coupler body, and moment effect is on the tooth, and the existence of moment makes tooth root forward rotation, and the effect of pulling the tooth is unsatisfactory.

2. The existing planting nails are unstable in fixation and easy to loosen to lose the traction effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, designed a planting draw gear for just abnormal of oral cavity, the device's planting nail is planted stably, and is difficult not hard up, and the acting force point is at the impedance center of target tooth, the whole translation of tooth, and the pulling force can not produce moment at the acting force point, and is good to the pulling effect of tooth.

In order to realize the technical purpose, reach above-mentioned technological effect, the utility model discloses a realize through following technical scheme:

an implant traction device for orthodontics comprises an implant nail, a tension spring, a hook body, a dental crown, a bracket and an arch wire; the implant nail is fixed on the alveolar bone, the support grooves are bonded on the surfaces of the dental crowns, the arch wire penetrates through the support grooves to connect a plurality of support grooves on different dental crowns, and the hook body penetrates through the support grooves to be connected with the implant nail through the tension spring.

Furthermore, the hook body is provided with a hook at the tail end, two ends of the hook body are folded into a triangle, the folded angle position is in a circular ring shape, two ends of the hook body are respectively fixed in the bracket, an inclined angle structure is formed between the horizontal vertical plane where the hook body and the base part are located in the side view, and the inclined angle alpha is 10-15 degrees, so that the traction hook is close to the impedance center of the dental crown as much as possible, and the stimulation to the dental arch of the surrounding tissues is avoided as much as possible. The hook body is triangular, the two bottom corners are fixed in the bracket, the vertex angle is pulled, the moment generated by the pulling force is transferred to the bracket and the arch wire, the target tooth is free from the action of the moment, and the traction effect on the target tooth is good.

Furthermore, the thread section of the planting nail is conical, the thread is self-tapping, the conical thread is easy to enter the indent bone, and the diameter of the planting nail is increased along with the entering of the planting nail, so that the fixing stability is good; the tail end of the planting nail is provided with a tension spring groove, and a tension spring is fixed in the tension spring groove.

Furthermore, extension spring one end connect the upper end of coupler body, the other end passes through the extension spring hook and connects planting nail, and the extension spring hook sets up the upside at planting nail, and the pulling force of extension spring has a clockwise pulling force to planting nail, has a power of screwing up to planting nail, and planting nail is difficult not hard up.

The utility model has the advantages that: the planting nail of the device is set into a conical self-tapping thread, so that the planting is stable when the planting is easy, the tension of the tension spring exerts a pre-tightening tension on the planting nail, the planting nail is not easy to loosen, the device transfers an acting point to an impedance center of a target tooth through the hook body, the tooth integrally translates, the hook body is set into a triangle, torque generated by the tension is transferred to the arch wire, the torque is not generated to the target tooth, the stress of the target tooth is easy to control, and the traction effect on the tooth is good.

Drawings

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

FIG. 1 is a schematic drawing of a distraction mechanism of an orthodontic implant distraction device;

fig. 2 is a structural schematic view of the planting nail;

FIG. 3 is a front view of the hook body;

fig. 4 is a left side view structure diagram of the hook body.

In the drawings, the components represented by the respective reference numerals are listed below:

1-implanting nail, 101-implanting nail screw thread section, 102-implanting nail traction cap, 2-tension spring, 3-hook body, 4-dental crown, 5-bracket and 6-arch wire.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, a planting traction device for orthodontics comprises a planting nail 1, a tension spring 2, a hook body 3, a dental crown 4, a bracket 5 and an arch wire 6; the implant nail 1 is fixed on an alveolar bone, the support grooves 5 are adhered to the surfaces of the dental crowns 4, the arch wire 6 penetrates through the support grooves 5 to connect a plurality of support grooves 5 on different dental crowns 4, and the hook body 3 penetrates through the support grooves 5 to be connected with the implant nail 1 through the tension spring 2.

Wherein, the hook is arranged at the tail end of the hook body 3, two ends of the hook body 3 are folded into a triangle, the folded angle is annular, and two ends of the hook body 3 are respectively fixed in the bracket 5; an inclined angle structure is formed between the hook body 3 and a horizontal vertical plane where the abutment part is located when the side view is taken, and the inclined angle alpha is 10-15 degrees, so that the traction hook is close to the impedance center of the dental crown as much as possible, and the stimulation to the dental arch of the surrounding tissues is avoided as much as possible. The hook body 3 is triangular, two bottom corners are fixed in the bracket 5, the vertex angle is pulled, the moment generated by the pulling force is transferred to the bracket 5 and the arch wire 4, the target tooth is free from the action of the moment, and the traction effect on the target tooth is good.

The thread section 101 of the planting nail 1 is conical, the thread is self-tapping, the conical thread is easy to enter the groove pressing bone, the diameter of the planting nail is increased along with the entering of the planting nail, and the fixing stability is good; the tail end 102 of the planting nail is provided with a tension spring groove, and the tension spring 2 is fixed in the tension spring groove.

Wherein, 2 one end connection coupler body 3's of extension spring upper end, the other end passes through the extension spring hook and connects planting nail 1, the extension spring hook sets up the upside at planting nail 1, the pulling force of extension spring has a clockwise pulling force to planting nail, has a power of screwing up to planting nail, planting nail is difficult not hard up.

When the dental implant is specifically implemented, the dental implant nail 1 is implanted into an alveolar bone, the supporting groove 5 is bonded on the dental crown 4, the arch wire 6 penetrates through the supporting groove 5 to connect the supporting grooves 5, the lower two ends of the hook body 3 are respectively fixed in the supporting grooves 5, one end of the tension spring 2 is connected with the upper end of the hook body 3, the other end of the tension spring is connected with the dental implant nail 1, the tension spring 2 is installed on the upper side of the dental implant nail 1, the upper side of the dental implant nail 1 is pulled by the tension spring 2, the dental implant nail 1 is pulled by the tension force to rotate clockwise, the dental implant nail 1 is tensioned, the dental implant nail is not easy to loosen, the triangular hook body 3 transfers the tension force of the tension spring 2 to the impedance center of a target tooth, the moment generated by the tension force is transferred to the arch wire 6, the target tooth is.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An implant traction device for orthodontics is characterized by comprising an implant nail, a tension spring, a hook body, a dental crown, a bracket and an arch wire; the implant nail is fixed on the alveolar bone, the bracket is adhered to the surface of the dental crown, the arch wire penetrates through the bracket to connect a plurality of brackets on different dental crowns, and the hook body penetrates through the bracket to be connected with the implant nail through the tension spring; the hook body tail end is provided with a hook, two ends of the hook body are folded into a triangle, the folded angle position is in a circular ring shape, and two ends of the hook body are respectively fixed in the bracket.

2. The orthodontic implant extension device of claim 1, wherein the hook body and the abutment portion are inclined at an angle α of 10-15 degrees in a horizontal plane from a side view.

3. The implant traction device for orthodontics according to claim 1, wherein the screw thread section of the implant nail is conical, the screw thread is self-tapping, and the tail end of the implant nail is provided with a tension spring groove, and the tension spring is fixed in the tension spring groove.

4. The implant traction device for orthodontics according to claim 1, wherein the tension spring has one end connected to the upper end of the hook body and the other end connected to the implant nail through the tension spring hook, the tension spring hook is disposed on the upper side of the implant nail, the tension of the tension spring exerts a clockwise tension on the implant nail and a tightening force on the implant nail, and the implant nail is not easily loosened.