CN211534896U

CN211534896U - Individual traction accessory for three-dimensional printed embedded teeth made of titanium alloy

Info

Publication number: CN211534896U
Application number: CN201920062738.9U
Authority: CN
Inventors: 聂萍; 于德栋; 朱敏; 安庆龙; 邹凡; 蔡鸣; 代杰文; 史俊
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2019-01-15
Filing date: 2019-01-15
Publication date: 2020-09-22
Anticipated expiration: 2029-01-15

Abstract

The utility model relates to the field of medical technology, specifically be an annex is pull in three-dimensional titanium alloy's that prints burial tooth individuation, this three-dimensional titanium alloy's that prints burial tooth individuation pull the annex, pull out the route according to hindering living tooth best, the bonding position and the direction of pull of annex are pull in the design, confirm that the best pulls annex main part concrete site and best pull the hook position. Based on a titanium alloy material, according to the design scheme of the optimal traction accessory device, a traction accessory main body and a traction hook which are very attached to the corresponding tooth surface are printed, wherein the traction accessory main body and the traction hook are integrated. The tooth surface can be completely attached, and the tooth surface is not easy to fall off after being bonded; compared with the traditional stainless steel, the titanium alloy material has obviously superior tissue compatibility and is not easy to cause soft and hard tissue inflammatory reaction; the structure of integral type is more firm, is difficult for appearing the phenomenon of rupture.

Description

Individual traction accessory for three-dimensional printed embedded teeth made of titanium alloy

Technical Field

The utility model relates to the field of medical technology, specifically a three-dimensional titanium alloy's that prints burial tooth individuation pulls annex.

Background

The embedded tooth is a common dysplasia in clinical oral diseases, and is easy to cause a plurality of complications, such as recurrent pericoronitis, carious and inclined adjacent teeth, abnormal recurrence after orthodontic treatment, food impaction, bad breath and the like. The common embedded tooth can be extracted by a surgical method, but the risk of the simple extraction of the embedded tooth which is closely related to important tissue structures such as lower alveolar neurovascular bundle, maxillary sinus cavity, nasopalatine nerve and the like is high, and the surgical exposure and orthodontic traction are one of the best treatment methods. In the prior treatment, a finished product traction device is adopted, so that the finished product traction device is easy to fall off, the traction action position is not easy to determine, the direction cannot be controlled, and the like.

The existing problems specifically include: firstly, the traction design is often disjointed with the surgical windowing position, and an orthodontist can only bond accessories and determine the traction direction according to the windowing position of the surgeon after the surgical operation; the surgery often requires blind removal of a large amount of bone to find a relatively flat dental surface area for adhesion, sometimes with a potential exposure to the detriment of traction treatment. Second, improper distraction can result in loss of attached gingiva or marginal bone. In addition, most of the traction devices commonly used in clinic are finished lingual buttons, brackets or temporary bending parts, the best fit with the tooth surface form of the embedded tooth cannot be achieved, the anti-shearing force is low, the traction devices frequently fall off, secondary operations are needed, the traction devices are bonded again, the wound, the pain and the cost of a patient are increased, and doctor-patient disputes are easy to occur. Finally, the thickness of the lingual button or bracket cannot be changed, and the exposed surface is deep, which is likely to press the gum during traction to cause inflammation or gum recession.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's defect, provide a titanium alloy's that three-dimensional printed buries prostrate tooth individuation and pulls annex.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a three-dimensional titanium alloy's embedding tooth individuation pulls annex, includes pulls subassembly and human tooth contact surface, its characterized in that: the traction assembly comprises a traction main body and a traction hook, wherein the traction main body is arranged on the outer side of the human tooth contact surface, one side of the traction main body corresponding to the human tooth contact surface is attached to the human tooth contact surface, the traction hook is arranged on one side of the traction main body far away from the human tooth contact surface, and one end of the traction hook is connected and fixed with one side surface of the traction main body corresponding to the traction hook.

Preferably, a plurality of grooves are arranged on one side surface of the traction main body corresponding to the contact surface of the human teeth.

Preferably, the other surface of the traction body excluding the surface contacting with the teeth of the human body is a smooth surface.

Preferably, the thickness of the traction body is 1mm higher than the gum of the patient.

Preferably, the surface of the towing hook is smooth.

Preferably, the direction of the main shaft of the traction hook is consistent with the reset traction direction.

Preferably, the towing main body and the towing hook are of an integrally molded structure.

Preferably, the traction main body and the traction hook are both formed by a 3D printing technology.

Preferably, the traction main body and the traction hook are both made of titanium alloy materials.

Preferably, the number of the grooves is at least two groups, and the grooves are distributed on the surface of the contact surface of the traction main body and the teeth of the human body in a grid shape.

Compared with the prior art, the beneficial effects of the utility model are that: according to the three-dimensional printed individualized traction accessory for the embedded teeth of the titanium alloy, the bonding position and the traction direction of the traction accessory are designed according to the optimal traction and extraction path of the impacted teeth, and the specific position of the optimal traction accessory main body and the optimal traction hook position are determined. Based on a titanium alloy material, according to the design scheme of the optimal traction accessory device, a traction accessory main body and a traction hook which are very attached to the corresponding tooth surface are printed, wherein the traction accessory main body and the traction hook are integrated. The tooth surface can be completely attached, and the tooth surface is not easy to fall off after being bonded; compared with the traditional stainless steel, the titanium alloy material has obviously superior tissue compatibility and is not easy to cause soft and hard tissue inflammatory reaction; the structure of integral type is more firm, is difficult for appearing the phenomenon of rupture.

Drawings

FIG. 1 is a schematic drawing of the structure of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

In the figure: 1 traction component, 2 traction main body, 3 traction hook and 4 human tooth contact 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.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a three-dimensional titanium alloy's that prints embedding tooth individuation pulls annex, is including pulling subassembly 1 and human tooth contact surface 4, pull subassembly 1 including pulling main part 2 and pulling hook 3, pull main part 2 and set up in the outside of human tooth contact surface 4, wherein pull main part 2 and the one side that human tooth contact surface 4 is corresponding and the laminating of human tooth contact surface 4, pull hook 3 and set up in the one side of pulling main part 2 and keeping away from human tooth contact surface 4, and pull hook 3's one end and pull the one side surface connection that main part 2 is corresponding fixed.

As a technical optimization scheme of the utility model, a plurality of grooves are arranged on one side surface of the traction main body 2 corresponding to the human tooth contact surface 4.

As a technical optimization proposal of the utility model, other surfaces of the traction main body 2 except the contact surface 4 with the teeth of the human body are smooth surfaces.

As a technical optimization scheme of the utility model, the thickness of drawing main part 2 is for being higher than the human gum 1mm of patient.

As a technical optimization scheme of the utility model, 3 smooth surfaces of towing hook.

As a technical optimization scheme of the utility model, the main shaft direction of towing hook 3 is unanimous with the direction of pulling that resets.

As a technical optimization scheme of the utility model, draw main part 2 and draw hook 3 and be the integrated into one piece structure.

As a technical optimization scheme of the utility model, it all constitutes through 3D printing technique to pull main part 2 and draw hook 3.

As a technical optimization scheme of the utility model, it constitutes to pull main part 2 and pull hook 3 and be titanium alloy material.

As a technical optimization scheme of the utility model, the quantity of recess is two sets of at least, and is latticedly distributed drawing main part 2 and human tooth contact surface 4's surface.

The working principle is as follows: when people use the three-dimensionally printed embedded tooth individualized traction accessory made of titanium alloy, firstly, a preoperative surgical plan is planned. The patient shoots the maxilla CT in a DICOMS format, CT data is imported into design software Mimics to carry out three-dimensional reconstruction, important anatomical structures are respectively described, after injury is avoided, a surgeon and an orthodontist jointly carry out optimal traction scheme design, and operation planning is exported to be an STL format file.

The tow assembly 1 is then designed. In the Geomagic studio 2013 software, according to the optimal traction scheme design, an individualized traction main body 2 and a traction hook 3 are designed, wherein the traction main body 2 is in a 3D printing individualized shape, the traction main body 2 is attached to a contact surface 4 of a human tooth, and grooves distributed in a grid shape are formed in the surface of the traction main body 2, so that the traction main body 2 is convenient to adhere and fix; the other surfaces of the traction main body 2 are smooth surfaces, so that discomfort of a patient is avoided; the thickness of the traction body 2 which is 1mm higher than the expected gingiva is adopted, so that the use of the traction body 2 has no occlusion interference with the involutory teeth of a human body. The towing hook 3 is arranged on the part of the towing body 2 extending toward the involution, so that the main shaft direction of the towing hook 3 is consistent with the towing direction, and the towing hook 3 is made of titanium alloy material with smooth surface.

And finally, three-dimensional printing and finishing and polishing are realized. The preparation method comprises the steps of adopting an electron beam melting forming method, utilizing a three-dimensional printer of a medical Aracam Q10 titanium alloy, wherein the powder material is Ti-6A1-4V which is medical noble, completing three-dimensional printing, cooling, blowing off redundant powder by using an air gun, polishing, grinding, fine processing and the like, then performing mechanical measurement, sterilizing, finally sterilizing at high temperature and high pressure, performing biological detection on the implant, and then performing sterilization and double-layer packaging.

Make this subassembly 1 that draws very laminating, difficult drop to histocompatibility is better, be difficult for appearing soft and hard tissue inflammation, and the form is irregular simultaneously, and is corresponding with exposing the tooth face, highly is higher than the gum edge, prevents that the gum from closing for the second time, and makes the main shaft direction of drawing hook 3 unanimous with the traction force direction, has avoided drawing 3 hook fracture, because of efficiency before the maximize.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An individual traction accessory for an embedded tooth of three-dimensional printed titanium alloy comprises a traction component (1), an embedded tooth main body (4) and other tooth main bodies, and is characterized in that: draw subassembly (1) including drawing main part (2) and draw hook (3), draw main part (2) to set up on the surface of the tooth that buries a prostrate main part (4), wherein draw the medial surface of main part (2) and the surface laminating of the tooth main part that buries a prostrate (4), the surface of other tooth main parts is provided with just abnormal arch wire, draw hook (3) to set up and keep away from the position that buries a prostrate tooth main part (4) one side is located and is close to the middle part in drawing main part (2), and draw the one end of hook (3) and draw the corresponding side surface of main part (2) to be connected fixedly, the other end of drawing hook (3) is just abnormal welded fastening with the arch wire on other tooth main part surfaces.

2. The three-dimensionally printed, individualized traction attachment for an embedded tooth of titanium alloy according to claim 1, wherein: draw main part (2) and the corresponding interior side surface of the tooth that buries body (4) and set up a plurality of recesses, draw other surfaces that main part (2) kept away from tooth that buries body (4) one side be smooth surface, the thickness of drawing main part (2) is for being higher than patient's tooth that buries 1mm of gum around main part (4).

3. The three-dimensionally printed individualized traction attachment for an embedded tooth of titanium alloy according to claim 1 or 2, characterized in that: the traction main body (2) and the traction hook (3) are of an integrally formed structure, the traction main body (2) and the traction hook (3) are formed by a three-dimensional printing technology, the traction main body (2) and the traction hook (3) are made of titanium alloy materials, the surface of the traction hook (3) is smooth, and the direction of a main shaft of the traction hook (3) is consistent with the reset traction direction.

4. The three-dimensionally printed, individualized traction attachment for an embedded tooth of titanium alloy according to claim 2, wherein: the number of the grooves is at least two, and the grooves are distributed on the surfaces of the traction main body (2) and the embedded tooth main body (4) in a grid shape.