KR101804991B1

KR101804991B1 - Mould type jig for bonding orthodontic brackets and mould type jig

Info

Publication number: KR101804991B1
Application number: KR1020160026307A
Authority: KR
Inventors: 임성훈
Original assignee: 조선대학교산학협력단
Priority date: 2016-03-04
Filing date: 2016-03-04
Publication date: 2017-12-06
Also published as: KR20170103417A

Abstract

The present invention relates to a mold-type jig manufacturing method and a mold-type jig, and more specifically, to a bracket for ligating an orthodontic wire, which can be easily applied with an appropriate amount of resin, A method of manufacturing a mold type jig for attaching a bracket for orthodontic appliances that can extend the service life without breakage due to the pulling force of the wire during orthodontic correction because the slot insert can be embedded in the portion of the bracket to be contacted, will be.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold type jig for attaching a bracket to an orthodontic bracket,

Teeth that are present in the human oral cavity may have an uneven tooth alignment due to congenital or acquired deformities. Malocclusion refers to malocclusion, which causes functional problems such as an aesthetic problem that adversely affects appearance in human life, and a linguistic use of food intake or inaccurate pronunciation . Accordingly, orthodontic appliances have been used as dental treatment means for correcting malocclusion of teeth.

And a lingual correction method of correcting the teeth by attaching an orthodontic appliance to the surface of the tooth facing the inside of the oral cavity. In recent years, There is a high preference for lingual correction methods in which the orthodontic appliance is not exposed to the outside.

Conventional conventional orthodontic appliances used in orthodontics consist of a bracket attached to the patient's teeth and a line connecting the tooth formed in the bracket to provide a traction force to move the teeth to the calibration position. At this time, the bracket is formed with a base to be attached to the tooth surface.

Conventional orthodontic braces attach brackets one by one to the surface (tooth surface) of each dental tooth making a dentition and ligate an arch wire of rigid material to the slots formed in each bracket by ligation wire, Direction was gradually corrected over a long period of time.

However, in the conventional orthodontic bracket, when the wire is ligated to the slot of the bracket, the gap between the tooth surface and the arc line is formed at a relatively large interval in order to secure the treatment space. And the orthodontic force applied to the tooth is applied to the bracket, not the center of gravity of the tooth or the center of resistance.

As such, the orthodontic force that does not pass through the center of resistance of the tooth inevitably generates a rotational moment. As a result of this moment of rotation, the teeth bound to the line are rotated around the bracket slot as the center of rotation. 1, there is a problem in that an unintentional rotation moment is generated due to the movement of another tooth or a problem of a tilting of the teeth T, so that a torque bend (torque twist) the third order bend is applied to the bracket 10 so that the rotation moment M is applied to the bracket 10, the rotation of the tooth T takes place around the arc 20 inserted in the slot of the bracket 10, As a result, the vertical height of the tip of the tooth (cut edge, tibia) as well as the slope of the lingual side of the tooth changes. The farther the bracket slot is from the tooth surface (the larger the bracket 10 profile), the greater the problem.

On the other hand, the bracket for orthodontic treatment generally uses a ready-made bracket, and the resin is applied to attach it to the teeth and ligature the wire to perform orthodontic correction.

At this time, it is very difficult for skilled physicians to attach the bracket to the correct position on the teeth and to apply the resin with sufficient bonding force in an appropriate amount.

[Prior Art Literature]

[Patent Literature]

1. Korean Patent No. 1410760, Fixing device for orthodontics

2. Korean Patent No. 1410758, Fixing device for orthodontics

3. Korean Patent Publication No. 2010-0088276, a bracket for orthodontics

4. Korean Patent Application No. 10-2014-0061643, an orthodontic bracket

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a mold-type jig capable of forming a patient-customized bracket at a correct position of a tooth surface by applying an appropriate amount of resin, And a mold-type jig.

It is another object of the present invention to provide a method and apparatus for preventing the breakage of the bracket due to the pulling force of the wire by effectively inserting the slot insert in the bracket portion to which the wire is ligated, A mold-type jig manufacturing method, and a mold-type jig.

According to an aspect of the present invention, Attaching a bracket model formed with a wire-ligating slot to each tooth of the dental model to generate a bracket-attached dentition model (hereinafter referred to as bracket-attached dentition model); And a step of fabricating the mold-type jig, which is a mold, with the bracket-attached dental model as a sentence.

In a preferred embodiment, preparing the dentition model of the patient includes preparing a dentition model of the patient before correction (hereinafter, referred to as a dentition model before correction). And arranging the pre-orthodontic dentition model into a tooth arrangement after orthodontic treatment to generate a dentition model after the correction, wherein the bracket-attached dentition model places the bracket model on each tooth of the dentition model after correction .

In a preferred embodiment, the method further comprises restoring the posterior dentition model to a tooth arrangement of the pre-dentition model after creating the bracket attached dentition model, wherein the mold- Of the dentition with the bracket attached.

In a preferred embodiment, the method further comprises the step of positioning the orthodontic arc model close to the dental model after the step of preparing the patient's dentition model, A wire line model is attached to the surface of each tooth of the dental model to ligature

In a preferred embodiment, after placing the bracket model, the orthodontic arc model is removed, and the mold jig is fabricated with a model of the bracket attached dentition model from which the orthodontic arc model has been removed.

In a preferred embodiment of the present invention, a slot insert model is provided with an arc-shaped ligature groove in the arc-shaped ligature slot of the bracket model.

In a preferred embodiment, after the step of preparing the dental model of the patient, positioning the orthodontic arc model close to the dental model; Positioning a slot insert model corresponding to each tooth of the dental model so as to be ligated into a line ligation groove provided with the orthodontic arc model; And attaching the bracket model to the surface of each tooth of the dental model so that the slot insert model is inserted into the slot for ligation, thereby creating the bracket attached dental model.

In addition, the present invention is a mold-type jig manufactured by the mold-type jig manufacturing method, wherein, when resin is filled in the negative portion of the bracket mold and the mold-type jig is covered on the patient's teeth, Shaped jig to be attached to a tooth of a patient.

In addition, the present invention is a mold-type jig manufactured by the mold-type jig manufacturing method, wherein a slot insert is inserted into a hollow portion of the slot insert model, a resin is filled in the hollow portion of the bracket mold, Wherein the bracket having the shape of the bracket model and capable of causing the bracket embedded with the slot insert to be attached to the patient's tooth when the bracket is put on the tooth.

The present invention has the following excellent effects.

First, according to the mold-type jig manufacturing method and the mold-type jig of the present invention, an appropriate amount of resin can be cured at the correct position on the tooth surface without attaching the bracket, which is a ready-made article, to the tooth surface, thereby attaching the patient-customized bracket.

Also, according to the mold-type jig manufacturing method and the mold-type jig of the present invention, since the slot insert can be attached so as to be embedded in the bracket, it is possible to prevent the breakage of the bracket due to the traction force of the wire and to reduce the frictional force during traction, There is an advantage that it can be increased.

1 is a view for explaining a problem of a conventional orthodontic bracket,
FIG. 2 is a flowchart of a mold-type jig manufacturing method according to an embodiment of the present invention,
FIG. 3 is a view for explaining a dental model in the method of manufacturing a mold-type jig according to an embodiment of the present invention,
FIG. 4 is a view showing the placement of a calibration line model in a mold-type jig manufacturing method according to an embodiment of the present invention;
FIG. 5 is a view illustrating positioning of a slot insert model in a mold-type jig manufacturing method according to an embodiment of the present invention;
6 is a view for explaining a bracket attaching dental model in the method of manufacturing a mold-type jig according to an embodiment of the present invention,
FIG. 7 is a view showing a model in which each model of the bracket attaching dentition model of FIG. 6 is Boolean Sum,
FIG. 8 is a view showing the generation of a tone of the bracket-attached dental model in the mold-type jig manufacturing method according to the embodiment of the present invention;
FIG. 9 is a view showing a mold-type jig that is a type of a bracket-attached dental model in the method of manufacturing a mold-type jig according to an embodiment of the present invention,
Fig. 10 is a view showing an actual photograph of the mold-type jig of Fig. 9,
FIG. 11 is a view showing a state in which a slot insert is inserted into the mold-type jig of FIG. 9;
FIG. 12 is a view showing an actual photograph of a mold-type jig filled with a resin for forming a slot insert and a bracket of FIG. 11;
FIG. 13 is a view showing a dentition of a patient to which a bracket is attached through a mold-type jig fabricated by the mold-type jig manufacturing method according to an embodiment of the present invention,
FIG. 14 is a view showing an actual dental image obtained by ligating a line to a dentition of a patient to which a bracket is attached, in FIG.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

A method of manufacturing a mold-type jig according to an embodiment of the present invention is a method of manufacturing a mold-type jig for forming a bracket customized on a patient's tooth surface without attaching a bracket to a patient's tooth surface.

Also, the meaning of 'model' in the present invention may be a digital model on a design program such as 'CAD', as well as a real model produced by 3D printing or the like.

Referring to FIG. 2, in a method of manufacturing a mold-type jig according to an embodiment of the present invention, a dental model of a patient is prepared (S1000).

The dentition model of the patient may be an ideal dentition model of the patient after orthodontic treatment. After obtaining the dentition model of the patient before the correction through the dental photograph such as CT or panorama (S1100), the expected dentition array (S1200).

In addition, the dentition model of the patient before the correction can be a digital model on a computer program, as well as a dentition model of an actual patient manufactured through an impression process.

In addition, FIG. 3 shows a patient's dental model (100) after correction, wherein symptoms such as malocclusion are resolved by rearrangement of the teeth.

Next, an orthodontic line model is placed close to the dental model 100 (S2000)

4 shows a state in which the orthodontic arc model 200 is disposed close to the dental model 100. When the orthodontic orthodontic work is completed, And are disposed at corresponding positions.

Next, the slot insert model is ligated to the orthodontic arc line model 200 (S3000).

In addition, the slot insert model is arranged in a number corresponding to the number of teeth that need calibration or provide a traction force at the time of calibration.

5, the slot insert model 300 is coupled to the orthodontic arc model 200 between each tooth surface of the dental model 100 and the orthodontic arc model 200.

The slot insert model 300 is formed with a line ligation groove 310 in which the orthodontic arc model 200 can be inserted and seated on a surface facing the orthodontic arc model 200. For example, The cross-

Quot; shape. &Lt; / RTI >

However, the slot insert model 300 may have a shape of '∪' or '∨' in cross section if it is a block in which the arc ligating groove 310 is formed.

In addition, the slot insert model 300 may be provided with a bracket coupling protrusion 320 protruding from the surface of the slot insert model 300 when the slot insert model 300 is inserted into the bracket model 400 described below.

Also, the slot insert model 300 is ligated to the orthodontic arc model 200 in a number corresponding to the number of teeth to be calibrated.

Next, a bracket model 400 is attached between the slot insert model 300 and the tooth surface (S4000).

6, the bracket model 400 is a model in which the slot insert model 300 and the tooth insert model 300 are fixedly disposed on the tooth surface by arranging a space between the tooth insert model 300 and the tooth surface, There is formed a slot for wire ligation to which the insert model 300 can be coupled.

That is, one side of the bracket model 400 is attached to the tooth surface, and the other side is disposed so that the slot insert model 300 is embedded.

Meanwhile, the process of placing the slot insert model 300 (S3000) may be omitted. In this case, the orthodontic arc model 200 is ligated to the slot for wire connection of the bracket model 400.

Next, after removing the orthodontic arc model, the dentition model with the bracket model 400 (hereinafter referred to as 'bracket attached dentition model') is completed. However, the calibration line model 200 may not be removed.

Also, although not shown, after the completion of the bracket-attached dental model, the placement of the dentition can be restored to the dentition of the dental model of the patient before the correction.

Next, the dentition model 100, the bracket model 400, and the slot insert model 300 are boolean summed on a program to generate a single model 500 as shown in FIG.

Next, a mold-type jig that is a sound of the bracket-attached dental model is manufactured (S6000).

Referring to FIG. 8, the mold-type jig is designed as a dent 600 that surrounds the outside of the bracket-attached dental model, and the dent 600 is removed from the bracket-attached dental model.

9 is a view showing the mold-type jig 700, showing a space in the form of a sound corresponding to teeth, a space 720 (hereinafter, referred to as a 'bracket model space) corresponding to the bracket model 400, A hollow space 710 corresponding to the slot insert model 300 is formed and has the shape of a mouthpiece.

FIG. 10 shows the actual product of the mold-type jig 700. In the present invention, the product is made of silicon using a 3D printer.

Hereinafter, a method of using the mold-type jig 700 will be briefly described.

First, as shown in FIG. 11, a slot insert 300a is inserted and positioned in the slot insert model space 710 of the mold-type jig 700.

However, if the step S300 of disposing the slot insert model 300 in the process of manufacturing the mold jig 700 is omitted, the process of inserting the slot insert 300a is also omitted.

Next, as shown in FIG. 12, the resin mold insert space 720 of the mold-type jig 700 is filled with the resin 400a.

Next, the mold-type jig 700 is inserted into the dentition of the patient, and the resin 400a is cured to attach the resin 400a to the tooth surface in the shape of the bracket model.

In addition, the polymerization may be a photo-polymerization in which light is irradiated to cure the resin 400a.

Next, the mold-type jig 700 is removed from the patient's teeth.

Then, as shown in FIG. 13, a bracket 400a in which a slot insert 300a is embedded is attached to each tooth surface of the patient's actual tooth row 100a.

Next, as shown in FIG. 14, the actual calibration line 200a is inserted into the slot insert 300a, and the ligature line 200b is inserted into the bracket 400a so as not to be separated from the slot insert 300a Thereby completing the arrangement of the arithmetic rectifying line 200a.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

100: dental model 200: orthodontic line model
300: Slot insert model 400: Bracket model
500: Bracket attached Denture model 600: Bracket attached Denture model
700: Molded jig

Claims

Preparing a patient's dental model;
Attaching a bracket model to a surface of each tooth of the dental model to generate a dental model having a bracket model (hereinafter referred to as a bracket attached dental model); And
And forming the bracket-attached dentition model as a sentence and fabricating the molded jig,
Wherein when the molded part of the bracket model is filled with resin and the molded jig is covered with the patient's teeth, the bracket having the shape of the bracket model can be attached to the patient's teeth .

The method according to claim 1,
The step of preparing the dentition model of the patient comprises:
Preparing a dentition model of the patient before correction (hereinafter, referred to as 'pre-correction dentition model'); And
Arranging the pre-orthodontic dental model in a tooth arrangement after orthodontic treatment to generate a dental model after correction;
Wherein the bracket attached dentition model is created by placing the bracket model on each tooth of the dentition model after the correction.

The method according to claim 1,
Wherein the bracket model is a bracket mold having a slot for wire ligation.

The method according to claim 1,
After preparing the dentition model of the patient,
Positioning an orthographic line model proximate the dental model,
Wherein the bracket model is provided with a slot for wire ligation and is attached to the surface of each tooth of the dental model so that the orthodontic arc model is ligated to the slot for wire ligation.

5. The method of claim 4,
After placing the bracket model, the orthodontic arc model is removed,
Wherein the mold-type jig is made of a dent of a bracket-attached dentition model from which the orthodontic arc model has been removed.

The method according to claim 1,
Wherein the bracket model is provided with a slot for a ligation ligature and the slot for ligation is provided with a slot insert model having a ligation groove.

5. The method of claim 4,
After preparing the dentition model of the patient,
Positioning an orthodontic arc model proximate the dental model;
Positioning a slot insert model corresponding to each tooth of the dental model so as to be ligated into a line ligation groove provided with the orthodontic arc model; And
And attaching the bracket model to the surface of each tooth of the dental model so that the slot insert model is inserted into the slot for ligation, thereby creating the bracket attaching dental model.

A mold-type jig manufactured by the mold-making jig manufacturing method according to any one of claims 1 to 7.

A mold-type jig manufactured by the mold-type jig manufacturing method according to claim 6 or 7,
When a slotted insert is inserted into a hollow portion of the slotted insert model and the molded portion of the bracket model is filled with resin to cover the mold teeth of the patient, Shaped bracket can be attached to the teeth of the patient.