WO2018012839A1 - Method for manufacturing jig-integrated bracket using 3d printer - Google Patents

Abstract

The present invention relates to a method for manufacturing a jig-integrated bracket using a 3D printer and, more particularly, to a method for manufacturing a jig-integrated bracket using a 3D printer, the method comprising: a tooth 3D scanning step of 3D-scanning a tooth to be corrected of a patient (S01); a tooth 3D data generating and storing step of generating and storing scanned data (S02); a bracket selecting and position setting step (S03) of selecting the type of a bracket to be applied and setting the position of the selected bracket in the tooth 3D data (S03); a jig selecting and position setting step (S04) of selecting the type of a jig and setting the position thereof (S04); a connector data generating step of generating data regarding a connector between the bracket and the jig (S05); a 3D printing data converting step of converting data for 3D printing (S06); and a jig-integrated bracket 3D printing step of outputting a jig-integrated bracket using a 3D printer (S07). The method for manufacturing a jig-integrated bracket using a 3D printer according to the present invention makes it possible to use a jig-integrated bracket optimized for various treatment plans and deviations that exist with regard to respective teeth to be corrected, thereby substantially improving the effect of correction.

Description

Jig integrated bracket manufacturing method using 3D printer

The present invention relates to a jig integrated bracket manufacturing method using a 3D printer, and more specifically, a tooth 3D scanning step (S01) for 3D scanning a target tooth of a patient; Generating and storing tooth 3D data for generating and storing the scanned data (S02); Selecting a bracket shape to be applied and setting the position of the selected bracket on the tooth 3D data, selecting the bracket and setting the step (S03); Jig selection and position setting step (S04) of selecting a kind of jig and setting a position; A connector data generation step (S05) of generating connector data between the bracket and the jig; A data conversion step (S06) for 3D printing converting the data for 3D printing; And a jig integrated bracket 3D printing step of outputting a jig integrated bracket by using a 3D printer (S07); and the jig without using a ready-made bracket so as to accommodate deviations and various treatment plans existing for each tooth to be corrected. The present invention relates to a jig integrated bracket manufacturing method using a 3D printer that dramatically increases the effect of calibration by enabling the use of an integrated bracket.

Orthodontic devices are widely used for the purpose of restoring balanced facial features and functions, such as orthodontic teeth, protruding mouths, and surgical corrections to surgically compensate for the maxillary and lower jaw gaps. Orthodontics using double brackets is commonly used. .

The method of attaching the bracket to the teeth is largely directly attached to the teeth and the tooth model is made by attaching the bracket to the model, and then transferring the bracket back to the teeth to attach the silicone material, metal material, cured resin, etc. There is an indirect attachment method to transfer to the patient teeth using a jig for position guide produced by.

The direct attachment method has a problem in that the correction effect decreases due to a large number of attachment errors depending on the positional difference and skill of the orthodontic dentist in the process of directly attaching the bracket to the teeth. have.

However, the indirect attachment method also requires a separate tooth model, which requires a lot of treatment time, complicated procedures, errors in the process of bonding to the jig and attaching it back to the tooth, and the use of expensive off-the-shelf brackets. There is a problem.

In addition, because the shape of the teeth is different from patient to patient, it is not possible to reflect the differences in the individual treatment plans such as different treatment plans such as extraction or non-extraction, posterior toe and maxillary incisor. The ready-made bracket to be uniformly applied to the subjects without post-processing, and the lighting that there may be errors even when it is attached, is a representative problem that reduces the effect of calibration.

Currently available orthodontic brackets are products that are developed in the United States that almost dominate the global market. However, not only companies have different specifications but also products with different specifications among the same company products have different treatment results. In order to overcome the differences in the results of the treatment due to the difference in the bracket specification, a professional and long-term skill is required.

As a prior art to solve the above problems, Korean Patent Laid-Open No. 10-2016-0049698 (2016.05.10) relates to a jig for a bracket position guide and a method of manufacturing the same, more specifically a bracket used for lingual correction To a bracket position guide jig and a method of manufacturing the same for fixing and attaching to a precise mounting position of a tooth. The jig is manufactured by shaping the jig together with the bracket through 3D modeling to attach the bracket to the correct position. Is minimized, and productivity can be increased, but since the ready-made brackets must be uniformly applied to the calibration target, there is a problem in that the above-described problems are kept as it is and limited to lingual correction.

The present inventors have studied a method of outputting the jig integrated bracket to the 3D printer to solve the problems of the prior art, and as described below, without using a ready-made bracket, to meet the unique characteristics of teeth for each patient and to various treatment plans By selecting the optimal bracket shape according to the dentist's choice and outputting it to the 3D printer, the correction method corresponding to each tooth is minimized, minimizing the correction error, and without the actual production of the tooth model 3D graphics The present invention has been found to be able to make a file and to manufacture a jig integrated bracket, thereby significantly reducing the effort and cost required for calibration.

Method for manufacturing a jig integrated bracket (JITB) using the present invention 3D printer is a tooth 3D scanning step (S01) for 3D scanning the target tooth of the patient; Generating and storing tooth 3D data for generating and storing the scanned data (S02); Selecting a bracket shape to be applied and setting the position of the selected bracket on the tooth 3D data, selecting the bracket and setting the step (S03); Jig selection and position setting step (S04) of selecting a kind of jig and setting a position; A connector data generation step (S05) of generating connector data between the bracket and the jig; A data conversion step (S06) for 3D printing converting the data for 3D printing; And a jig integrated bracket 3D printing step S07 of outputting a jig integrated bracket using a 3D printer.

The 3D printer used in the jig integrated bracket 3D printing step (S07) may preferably output any one or two or more of metal, plastic, and ceramic materials.

The jig integrated bracket (JITB) is composed of a bracket (B), jig (J) and the connector (C) which is a connection portion of the bracket and the jig.

The connector (C) is configured in the form of a plurality of recesses respectively at the connection portion between the bracket and the jig can be easily separated using a cutting tool.

When the bracket (B) is selected as a straight bracket, it is possible to set up differently the shape of the groove of the bracket, the ligation wing, and the bracket base according to the tooth condition.

It is preferable to use a ligation method using a ligation wire or a ligation rubber ring or a structure capable of self-ligation.

The jig is displayed the tooth number (N) to be corrected,

Bracket information (SN) may be displayed, the bracket information (SN) is the name of the initial name of the person to be corrected, the number of teeth to be corrected, the type of bracket, whether or not to adjust the setup, wire thickness or diameter and the date of correction It may include.

Therefore, the method of manufacturing a jig integrated bracket using the 3D printer of the present invention can produce a custom bracket using 3D printing, so that the indirect attachment method can be attached more accurately and accurately without a procedure error, and the jig according to the accuracy of the bracket and jig shape is increased. Increased accuracy when moving, maximizing orthodontic effects.

Since the jig integrated bracket is manufactured by 3D printing, it is possible to reduce the purchase cost of the bracket and to easily apply, transmit, and manufacture the treatment data considering the import substitution and the ethnic characteristics for the bracket which is mostly imported. Even if there is an advantage that can easily secure the market.

 Since the jig integrated bracket is stored as 3D data, it is easy to immediately re-manufacture the bracket dropped by the patient's authoring activity during the treatment without the impression acquisition process or the delivery of the model, and the printing can be done immediately if the hospital has a 3D printer facility. This allows for easy reattachment without any error to the original position.

1 is a flow chart schematically showing a jig integrated bracket manufacturing method using the present invention 3D printer.

2 is a view schematically illustrating tooth scan data of a 3D scan of a tooth to be corrected.

3 is a view schematically illustrating setting of a position of a selected bracket to the tooth scan data.

FIG. 4 is a view schematically illustrating setting a jig and a connector in addition to setting a position of a bracket selected in tooth scan data.

FIG. 5 is a diagram illustrating jig integrated bracket data excluding tooth scan data from the data of FIG. 4.

6 is a detailed view showing the connector portion of the jig integrated bracket in detail.

FIG. 7 is a view showing that the jig integrated bracket manufactured by using a 3D printer is attached to actual teeth requiring correction.

8 is a view showing the jig removed from the actual teeth to which the jig integrated bracket is attached.

9 is a view showing that the jig integrated bracket removed the connector other than the jig.

FIG. 10 is a diagram illustrating that calibration is completed by finally wiring.

FIG. 11 is a diagram illustrating a lingual correction process, unlike the labial correction process illustrated in FIGS. 2 to 10.

First, prior to entering the detailed description of the present invention, if it is determined that the detailed description of the known technology or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the terms to be described later are defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or operator, and the definition thereof is defined as "a method for manufacturing a jig integrated bracket using a 3D printer according to the present invention. It should be made based on the contents throughout the specification to describe.

Hereinafter, a preferred embodiment of "a jig integrated bracket manufacturing method using a 3D printer" according to the present invention will be described in detail with reference to the drawings. The following examples are merely illustrated to illustrate the present invention and are not intended to limit the scope of the present invention.

FIG. 2 is a flowchart schematically illustrating a method for manufacturing a jig integrated bracket using the 3D printer of the present invention. FIG. 2 is a view schematically illustrating tooth scan data of a 3D scan of a tooth to be corrected, and FIG. 3 is a position of a bracket selected in the tooth scan data. 4 is a view schematically illustrating setting the jig, and FIG. 4 is a view schematically illustrating setting a jig and a connector in addition to setting the position of the selected bracket in the tooth scan data, and FIG. 5 is a tooth scan data from the data of FIG. 4. Figure 6 is a diagram representing the jig integrated bracket data, Figure 6 is a detailed view showing the connector portion of the jig integrated bracket in detail, Figure 7 is attached to the jig integrated bracket manufactured using a 3D printer on the actual teeth that need to be corrected. 8 is a seal with a jig integrated bracket. 9 is a view showing the removal of the jig from the teeth, Figure 9 is a view showing the removal of the connector in addition to the jig in the jig integral bracket, Figure 10 is a view showing that the correction is completed by the final wiring, Figure 11 is a view Unlike the labial orthodontic process described in 2 to 10 is a view representing a lingual orthodontic process.

* Referring to Figure 1 jig integrated bracket manufacturing method using a 3D printer includes a tooth 3D scanning step (S01) for 3D scanning the target tooth of the patient; Generating and storing tooth 3D data for generating and storing the scanned data (S02); Selecting a bracket shape to be applied and setting the position of the selected bracket on the tooth 3D data, selecting the bracket and setting the step (S03); Jig selection and position setting step (S04) of selecting a kind of jig and setting a position; A connector data generation step (S05) of generating connector data between the bracket and the jig; A data conversion step (S06) for 3D printing converting the data for 3D printing; And a jig integrated bracket 3D printing step S07 of outputting a jig integrated bracket using a 3D printer.

FIG. 2 illustrates the tooth scan data SD stored in the tooth 3D data generation and storage step S02 of generating and storing the scanned data through the tooth 3D scan step S01.

The device for scanning 3D teeth is a 3D scanner that has emerged according to the stage of technology development, and can be any device capable of scanning including teeth, upper and lower teeth, and gums.

Referring to FIG. 3, a bracket selection and position setting step (S03) of selecting a shape of a bracket to be applied and setting a position of the selected bracket on the tooth 3D data is represented. In FIG. 3, a straight self-ligating bracket is represented. However, the bracket (B) that is finally matched and selected for the teeth to be corrected includes various types of ligation wings and slots, and a bracket base can be selected. Such selection is not limited as long as it can achieve the maximum corrective effect. do.

Of course, when the bracket (B) is selected as a straight bracket, the bracket (slot) and the ligation wing of the bracket can be set up to vary the shape of the base bracket.

The setup refers to varying the shape of the bracket groove (slot), the shape of the ligation wing, the angle and thickness of the bracket base according to the shape of the tooth and the treatment plan.

The groove of the bracket is also called a slot, and refers to the portion of the bracket where the wire is mounted.

By varying the shape of the grooves of the bracket, it means that the shape of the grooves (slots) of the brackets varies according to the thickness, angle and inclination of the teeth according to the characteristics of the individual teeth.

The bracket (B) is the optimal ligation wing, slot, considering all treatment plans, such as the protruding degree of the gum, whether the operation, extraction and non-extraction, the location of the extraction, the rear pulling method of the upper and lower anterior teeth, the anatomical condition of the individual teeth The dentist can randomly select the bracket shape including the size and arrangement of the base and the shape and arrangement of the bracket base, and the effect can be easily predicted by the operator using 3D diagnosis. Optimize the effectiveness of your treatment.

Of course, when the bracket (B) is selected as a straight bracket, it is possible to set up differently the shape of the groove of the bracket, the ligation wing, the bracket base according to the tooth condition, and the self ligation is also possible.

Self-ligation refers to a method of special handling such as caps (hooks) and hooks on the brackets so that wires or rubber rings do not escape from the brackets when they are ligated.

3 to 11 is a bracket of the ligation method using a rubber ring or a wiring.

The bracket base refers to the lower part of the bracket that contacts the actual tooth.

The ligation wing is a part for fixed ligation of the ligation wire or the elastic ligation rubber ring to the bracket after inserting the orthodontic wire into the slot. The ligation wing may allow the operator to selectively attach a hook for backtowing the canine or for fastening the interhepatic rubber in the desired position.

Ligation method using ligation wire or ligation rubber ring or self-ligation structure.

The ligation wire or ligation rubber ring is an essential material used when performing ligation, as the method of tying the bracket and the wire or rubber ring for calibration is referred to as ligation.

The base of the bracket is a surface that attaches the bracket to the teeth to compensate for the narrow thickness difference of the tooth shape. In addition, it is possible to significantly improve the dropout rate of the bracket by designing a base that perfectly matches the tooth surface in consideration of the anatomical shape of the tooth surface when the bracket is bonded. The difference in tooth shape between these individuals can be accurately identified by the 3D scanner and designed into the base.

This allows the wire to be inserted directly into the slot of the optimally adjusted bracket, allowing for optimal correction of the anatomy of the individual tooth and the individual treatment plan.

The present invention is characterized in that the brackets, which are selected and positioned, can perform such setup work in the 3D modeling process, so that the jig-integrated brackets can be manufactured by the 3D printer.

4 is a jig selection and position setting step (S04) and a jig for generating data by selecting a type of a jig for position guide used when setting the bracket to the actual tooth and setting the position to the selected and set bracket (B). It represents that the connector data generation step (S05) to generate a connector portion for connecting the bracket with the.

Referring to Figure 5 of the jig selection and position setting step (S04) and the connector data generation step (S05) of the data except the tooth scan data (SD) of the data to be 3D printed, that is, jig integrated bracket (JITB) It is a representation of 3D graphic data.

The jig integrated bracket (JITB) is composed of a bracket (B), jig (J) and the connector (C) which is a connection portion of the bracket and the jig.

It is desirable to generate data of a plurality of jig-integrated brackets (JITB) for each of these plurality of teeth in the dentition and output them all at once using a 3D printer.

The jig is preferably a tooth number (N) to be corrected is displayed, it is possible to select a jig integrated bracket (JITB) to match the tooth to be corrected in the actual setting process.

The bracket may display the bracket information SN, but the portion displayed in the bracket B may be easily recognized by the naked eye or using a magnifying glass in the upper face of the tie wing on the bracket. It is preferable to be displayed in any one or more.

The bracket information SN may include information on at least one of a name of a person to be corrected, a tooth number to be corrected, a type of bracket, a setup adjustment, a wire thickness or diameter, and a date of correction.

This information can reduce the waiting time of the patient by preparing the device in advance if the patient sends a photo of the dropped bracket during the treatment to the mobile phone, and can be used as information for future recalibration. On request, it is easy to share data with other hospitals even when all treatment hospitals are in operation.

Any information may be used as long as it can indicate a specific person other than the name of the person to be corrected.

It is sufficient if the type of bracket is initial, whether it is a standard type, a straight type, a lingual type, or a forward type.

Whether or not to adjust the setup can be replaced by an indication of a particular type of setup.

The wire thickness applied indicates whether it is 018 inch or 022 inch.

Referring to Figure 6 jig integrated bracket (JITB) is a connector connecting the jig and the bracket, if any cutting tool can be used, the connector and the jig, the connector and the connection portion of the bracket is preferably composed of a plurality of yaw, the connection portion The strength or thickness of is preferably the minimum thickness as the connection angle between the bracket and the connector can be maintained when the bracket is actually set on the tooth.

The connector (C) is preferably composed of a plurality of recesses in the connection portion between the bracket and the jig, so that it can be easily separated using a cutting tool (eg, pin and ligature cutter, etc.).

It is desirable that the tool for cutting the connection part of the bracket and the connector and the connection part of the jig and the connector be developed as a dedicated tool in the orthodontic process.

The 3D printer used in the jig integrated bracket 3D printing step (S07) may be any one of a 3D printer using any one of metal, plastic, and ceramic, or a 3D printer capable of using two or more materials in combination.

Referring to FIG. 7, it can be seen that the jig integrated bracket manufactured by using the 3D printer is attached to the actual teeth requiring correction.

Referring to FIG. 8, the jig is removed from the state of FIG. 7, and referring to FIG. 9. In addition, the order of removing the connector is shown.

Referring to Figure 10 it is a view showing that the calibration is completed by the final wiring.

Referring to FIG. 11, unlike the labyrinth correcting process illustrated in FIGS. 2 to 10, the lingual corrective process is represented, and thus, the present invention is not limited to the labyrinth correcting method.

The present invention relates to a method for correcting orthodontic teeth consisting of a plurality of teeth, but the above embodiment is expressed only for one tooth in terms of expression or explanation, and for this reason, the scope of the present invention is not limited.

According to the method of manufacturing a jig integrated bracket using the present inventors 3D printer, it is possible to manufacture a custom bracket using 3D printing so that the indirect attachment method can be attached more accurately and without errors, and the jig according to the accuracy of the bracket and jig shape is increased. Increased accuracy when moving, maximizing orthodontic effects.

Since the jig integrated bracket is manufactured by 3D printing, it is possible to reduce the purchase cost of the bracket and to easily apply, transmit, and manufacture the treatment data considering the import substitution and the ethnic characteristics for the bracket which is mostly imported. Even if there is an advantage that can easily secure the market.

 Since the jig integrated bracket is stored as 3D data, it is easy to immediately re-manufacture the bracket dropped by the patient's authoring activity during the treatment without the impression acquisition process or the delivery of the model, and the printing can be done immediately if the hospital has a 3D printer facility. This allows for easy reattachment without any error to the original position.

SD: Tooth Scan Data B: Bracket

J: Jig C: Connector

JITB: Jig integrated bracket N: Tooth Number

SN: Bracket Information

RT: Orthodontic Teeth W: Wire

Claims (5)

A tooth 3D scan step S01 of 3D scanning the patient's corrected tooth; Generating and storing tooth 3D data for generating and storing the scanned data (S02); Selecting a bracket shape to be applied and setting the position of the selected bracket on the tooth 3D data, selecting the bracket and setting the position (S03); Jig selection and position setting step (S04) of selecting a kind of jig and setting a position; A connector data generation step (S05) of generating connector data between the bracket and the jig; A data conversion step (S06) for 3D printing converting the data for 3D printing; And Jig integrated bracket 3D printing step of outputting the jig integrated bracket using the 3D printer (S07); Jig integrated bracket manufacturing method characterized in that consisting of. The method according to claim 1, The jig integrated bracket 3D printing step (S07) 3D printer used in the jig integrated bracket manufacturing method, characterized in that the output of any one or two or more of the metal, plastic and ceramic materials. The method according to claim 1, The jig integrated bracket is composed of a bracket, a jig and a connector that is a connection portion of the bracket and the jig, The connector is a jig-integrated bracket manufacturing method characterized in that the connecting portion between the bracket and the jig is composed of a plurality of yaw shape each so that it can be easily separated using a cutting tool. The method according to claim 1, When the bracket is selected as a straight bracket, it is possible to set up different grooves of the bracket, ligation wings, and bracket base according to the tooth condition. Jig integrated bracket manufacturing method characterized in that the ligation method using a ligation wire or ligation rubber ring or self-ligating structure. The method according to claim 1, The jig is marked with the tooth number to be corrected, The bracket is a bracket information is displayed, the bracket information is jig integrated, characterized in that the name of the initial name of the person to be corrected, the number of teeth to be corrected, the type of bracket, whether or not the setup adjustment, the wire thickness or diameter and the date of correction Bracket manufacturing method.

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