KR20070108020A - Bracket for revising a set of teeth and system for revising a set of teeth using the same - Google Patents

Abstract

A bracket for correcting a set of teeth and a system for correcting a set of teeth using the same are provided to be manufactured in a non-prescription method, and to achieve a small size and a simple structure. A bracket for correcting a set of teeth includes a base(220) and first to fourth hooks(230). The bottom surface of the base is attached to a tooth. A slot(210) is formed on the upper center of the base in a longitudinal direction of a body. A wire is inserted into the slot. The hooks are formed vertically on both end portions of the base to have a predetermined length. The end portion of a body of the hook is branched from the center of the body of the hook and is bent downwardly. In the state that the first to fourth hooks are attached to the surface of teeth, an elastic band is hung on the hooks to give force to the teeth.

Description

Orthodontic Bracket and Orthodontic System Using Them {Bracket for Revising A Set of Teeth and System for Revising A Set of Teeth Using the Same}

1 is a view showing a general orthodontic bracket,

Figure 2 is a perspective view of the orthodontic bracket positioning jig according to the invention,

3 is an exploded perspective view illustrating a state in which the cap and the connector of FIG. 2 are separated;

Figure 4a is a perspective view of the orthodontic bracket according to the present invention,

FIG. 4B is a front sectional view of the orthodontic bracket taken along line X-X 'of FIG. 4A;

Figure 4c is a cross-sectional plan view of the orthodontic bracket according to the present invention,

5 is 3D shape data about the teeth of the patient read on the orthodontic program,

6 is an explanatory diagram for explaining a process of performing tooth setting for orthodontic treatment by using the orthodontic treatment program after obtaining 3D tooth shape data;

7 is an explanatory view showing a state in which the transfer jig for attaching the bracket to the bracket using a tooth-orthodontic program after the tooth setting is completed;

FIG. 8 is a view illustrating a state in which each transfer jig is separated by using a boolean function in the orthodontic program;

FIG. 9 is a perspective view illustrating a state in which a connector manufactured after the production of the RP machine using the shape data of the cap of the transfer jig obtained in FIG.

10 is a cross-sectional view for explaining a process of automatically positioning the bracket on the tooth surface by coupling the orthodontic bracket to the transfer jig manufactured according to the present invention;

11 and 12 are a step-by-step view showing the process of separating the transfer jig from the tooth according to the invention

Figure 13 is a perspective view of an orthodontic bracket according to the present invention.

<Description of Symbols for Main Parts of Drawings>

100: jig 102: through hole

104: cap 106: protrusion

108: fixing protrusion 110: coupling portion

112: 114a, 114b: wing

200,300: Orthodontic Bracket 210: Slot

220: base 230: ring

240: hollow window

The present invention relates to an orthodontic bracket and an orthodontic system using the same, and more particularly, to an orthodontic bracket and orthodontic system using the same so that the structure is very simple so that you do not feel a foreign body even after a long time in the oral cavity.

In general, the cause of the uneven tooth or malocclusion (tooth bite misalignment) of the tooth may be due to bad eating habits such as abnormal teeth development, jawbone development, or sucking fingers when young. It is caused by not being able to grow right in.

People with such uneven or unbalanced dentitions will not be able to live a good social life by eating or talking with others, covering their mouths, or passively dealing with interpersonal relationships. Even when the food is not evenly crushed or the food waste is caught in the gap between the teeth and teeth, there was a problem that causes various dental diseases or diseases of the digestive system.

In order to solve this problem, orthodontic brackets have been used, in which the movement of the tooth occurs with the modification of the alveolar bone surrounding the tooth by applying a constant force to the tooth.

As shown in FIG. 1, a general orthodontic bracket 10 has a shape in which a pair of wings 14 and 16 spaced a predetermined distance from the base 12 attached to a tooth A is integrally formed. . Slots 210 are formed between the wings 14 and 16 to which wires (not shown) are inserted.

The orthodontic bracket 10 is attached to the lip side or the tongue surface of the teeth, as shown in Figures 2 to 3, but recently has been attached to the teeth of the tongue in consideration of interpersonal relationship, appearance.

The conventional bracket has a characteristic angle called a prescription between the base portion and the groove (slot). The bracket helps the treatment to be easy due to the inherent set angle, but for this reason, the conventional bracket has a high additional production cost (processing, etc.), and thus the price of the product is very high.

That is, the orthodontic bracket according to the prior art is manufactured in a manner that gives an average prescription value for each bracket. In other words, it is the best way to give each patient an appropriate subscription value, but it requires a lot of effort and cost to use it, which is not practical and not functional.

Conventional brackets are made of resin or ceramic and are similar to tooth color, but are difficult to see, but are causing a price increase.

In addition, the bracket has a tendency to become smaller and less expensive to increase the comfort and less foreign object when attached to the patient's teeth, and furthermore, the bracket is required for a product that is easy to install in a short time to the patient.

On the other hand, orthodontics are made by attaching the orthodontic bracket to each tooth surface and adjusting the wires coupled to the grooves (slots) of the bracket. In this orthodontic treatment, the positioning of the bracket attached to the tooth surface in order to properly transmit the force of the wire to the bracket plays a very important role in the treatment process and the result. Therefore, there is a need for a tool that accurately reproduces the position of the bracket (designed) through diagnosis on the surface of the patient's teeth.

The tool that accurately holds the mounting position of the bracket on the teeth of the patient is called a transfer jig (Transfer Jig), it is conventionally manufactured by the doctor himself or by hand in the laboratory. That is, after the liquid resin was poured into the gypsum tooth model equipped with a bracket and cured, a jig for each tooth was manufactured by removing the gypsum tooth model and cutting and trimming it to fit each tooth.

Meanwhile, the wider the area (area) where the jig touches the tooth, the more accurate and stable the user can mount the bracket. However, the jig of the orthodontic bracket according to the prior art is made of a single bar, there is a problem that the area of contact with the surface of the tooth is limited due to the problem when the orthodontic bracket is mounted on the tooth and removed.

In addition, a three-dimensional relationship (angle / distance) between the tooth for treatment and the bracket is called a prescription, which means a relationship between the treatment wire and the groove (slot) located in the bracket. Therefore, the jig should accurately express this, but as described above, the jig manufactured by hand has a problem of inferior accuracy because it is based on an external shape rather than a slot of a bracket.

In addition, the jig of the orthodontic bracket according to the prior art, if the orthodontic bracket mounted on the patient falls, may be reattached, but if the jig produced by hand is lost, the jig of the other teeth also need to be produced again there was.

In particular, the jig of the orthodontic bracket according to the prior art by manufacturing by hand is very expensive production and purchase costs, the quality is not constant affect the treatment results, there was a problem that must be discarded after one use.

And, the jig of the orthodontic bracket according to the prior art requires about 20 to 30 jigs for one patient, there was a problem that it is difficult to record the mark for identification.

Korean Patent Laid-Open Publication No. 2006-20214 discloses an integrated universal bracket attaching device in which the height and angle of a tooth are indicated, but there is a problem in that the manufacturing cost is high because the structure is very complicated.

In addition, Korean Patent Publication No. 2002-16324 discloses orthodontic treatment consisting of a molding portion coupled to the front end of the tooth, a body portion extending from the upper surface of the molding portion to the tooth surface, and a rubber ring for coupling the body portion and the bracket. Positioning and adhesion aids of ligation brackets are disclosed. However, this technique is difficult and complicated to precisely position the bracket since the molding part and the body part which are important for determining the mounting position of the bracket are manufactured by hand, and the molding part and the main body part are separated after the bracket is attached. The work is not simple. In addition, since the device is manufactured in a handmade manner, there is a problem that the cost increases.

Therefore, the present invention is to solve the problems described above, the purpose of the production is based on a no-prescription method, so compact and very simple structure, minimizing foreign object when worn for a long time in the oral cavity, the patient is comfortable dentition The purpose is to provide a calibration bracket.

It is another object of the present invention to apply the individual subscription values best suited to the individual patient in the transfer jig instead of the average 'prescription' values possessed by the general bracket so that the brackets are not given a subscription value. The present invention provides a orthodontic bracket without a prescription and orthodontic system using the same.

Still another object of the present invention is to provide a bracket in which the structure of the bracket is very simple and the problem of cleanliness caused by food and secretions generated during long-term oral installation can be easily solved.

Another object of the present invention is to provide a bracket having excellent product competitiveness because the price is less than 1/10 or less than conventional products.

Another object of the present invention is the orthodontic bracket that can be easily used so that even the general public, not the doctor can be installed because the positioning procedure of the bracket relative to the tooth surface is mounted on the patient using a jig as it is designed on the computer. And to provide an orthodontic system using the same.

SUMMARY OF THE INVENTION An object of the present invention is to provide an orthodontic system comprising a bracket positioning jig for orthodontics having a split type structure in which a cap detachably coupled to a tooth and a connector coupled to a bracket at a lower end are easily separated.

Another object of the present invention is to provide an orthodontic system comprising an orthodontic bracket positioning jig that can realize a maximum contact area for the stable and accurate bracket mounting because the cap portion in contact with the teeth is separated and freely adjustable. There is.

Still another object of the present invention is to provide an orthodontic system including an orthodontic bracket positioning jig that can accurately reproduce the relationship between the bracket and the teeth because the lower end is connected to the groove (slot) of the bracket.

Another object of the present invention is to provide an orthodontic orthodontic system comprising a bracket positioning jig for orthodontics that can be remanufactured only the jig of the necessary part using the data stored in the computer when the jig is lost.

Another object of the present invention is because the cap of the jig is designed and manufactured using a CAD / CAM, the quality of the product is constant, excellent, and can be mass-produced orthodontics including a low-cost orthodontic bracket positioning jig To provide a calibration system.

Another object of the present invention is divided into two parts to discard only the cap portion in contact with the teeth and the connector portion is recyclable to provide an orthodontic system comprising an orthodontic bracket positioning jig that can reduce the burden on the user have.

In order to achieve the above object, the present invention is a bottom surface is attached to the teeth, the base having a slot is inserted into the center of the upper surface in the longitudinal direction of the body; Both ends of the base are vertically installed at a predetermined length, and an end portion of the body is branched from the center to provide an orthodontic bracket, characterized in that composed of the first to fourth hook (hook) curved downward.

Orthodontic system of the present invention and the orthodontic bracket; A base having a bracket positioning jig for attaching the orthodontic bracket to the tooth surface, the orthodontic bracket having a bottom surface attached to the tooth and having a slot into which a wire is inserted in the center of the upper surface in the longitudinal direction of the body; A predetermined length is vertically installed at both ends of the base, and an end portion of the body is branched from the center and configured as first to fourth hooks curved downward, and the orthodontic bracket positioning jig has a lower portion of the tooth. A groove is formed in contact with the cap, and has a cap having a through hole in the longitudinal direction on the upper inner circumferential surface of the body, and a fixing protrusion detachably inserted into and fixed to the through hole of the cap on one side thereof, and the other side of the lower portion of the body It is characterized in that it comprises a connector that is bent and coupled.

In the present invention, it is possible to predict a good treatment result by applying an individual prescription value that is most suitable for an individual patient to a transfer jig on a computer program instead of the average 'prescription' value of the general bracket.

Hereinafter, a preferred embodiment of the orthodontic bracket and the orthodontic method using the same according to the present invention with reference to the accompanying drawings in detail as follows.

Figure 2 is a perspective view showing the orthodontic bracket positioning jig according to the invention, Figure 3 is an exploded perspective view showing a state in which the cap and the connector of Figure 2 separated.

As shown in Figure 2 and 3, the jig 100 of the orthodontic bracket according to the present invention, the lower end is coupled in contact with the upper surface of the teeth, the through hole 102 in the longitudinal direction on the upper inner peripheral surface of the body A cap 104 having a triangular protrusion 106 formed in a substantially rectangular box shape having a) and arranged at an upper end of the upper surface so as to catch one end of a separation mechanism (not shown); The fixing protrusion 108 is detachably inserted into and fixed to the through-hole 102 of the cap 104, and an orthodontic bracket (not shown) is provided at a lower end which is bent downward from the body and extended. It consists of a "112" shaped connector 112 having a coupling portion 110 extending inward and outward to engage.

The through hole 102 has a tapered shape that decreases in width from the inlet to the outlet where the fixing protrusion 108 is coupled, and the fixing protrusion 108 of the connector 112 has an inner circumferential surface structure of the through hole 102. It is preferable to have a taper shape in which the width becomes narrower toward the tip portion correspondingly. In this case, although the through hole 102 and the fixing protrusion 108 are each shown to have a quadrangular shape, the cross-sectional shape may also form another shape such as a circle. Any coupling structure may be used as long as the fixing protrusion 108 is press-fitted to the through-hole 102. The fixing protrusion 108 is preferably formed to be slightly longer than the length of the through hole (102).

The protrusion 106 is formed integrally with the cap 104, and after fixing the bracket to the patient's teeth using the jig 100, as described below, when removing the jig using a tool such as a forceps to remove the cap When the connector 112 is separated from the cap 104 by pressing the fixing protrusion 108 of the connector 112 that protrudes and is coupled to one side of the 104, the protrusion 106 serves as a supporting support jaw. . Therefore, the shape of the protrusion 106 may have any shape as long as it is a structure that can serve as a supporting jaw.

The connector 112 has a pair of wings 114a and 114b at the rear end of the fixing protrusion 108 to serve as a stopper when the fixing protrusion 108 is coupled to the through hole 102.

Figure 4a is a perspective view of the orthodontic bracket according to the invention, Figure 4b is a cross-sectional view of the orthodontic bracket taken along the line X-X 'of Figure 4a, Figure 4c is a plan cross-sectional view of the orthodontic bracket.

As shown in Figures 4a to 4c, the orthodontic bracket 200 according to the present invention is attached to the bottom surface of the teeth (not shown), the wire in the center of the upper surface in the longitudinal direction of the body (not shown) A base 220 having a slot 210 into which is inserted; A predetermined length is vertically installed at both ends of the base 220, and an end portion of the body is branched from the center and formed of first to fourth hooks 230 hooked downward.

The first to fourth rings 230a to 230d are used to induce a force applied to a tooth in a specific direction by hanging an elastic band or the like in a state of being attached to the tooth surface.

The space formed in the center between the first to fourth rings 230a to 230d serves as a hollow window 240 for checking whether the photocurable bond is bonded when the base 220 is attached to the tooth. .

The jig design of the orthodontic bracket according to the present invention configured as described above and the actual procedure will be described with reference to Figures 5 to 12 as follows.

FIG. 5 illustrates 3D shape data of a patient's teeth read on a dental orthodontic program, and FIG. 6 illustrates a process of performing tooth setup for orthodontic treatment using a dental orthodontic program after obtaining 3D tooth shape data. 7 is an explanatory diagram illustrating a state in which a transfer jig for attaching a bracket is coupled to a bracket by using a tooth-orthodontic program after completion of tooth cleaning, and FIG. 8 is a boolean in a tooth-orthodontic program. A diagram showing a state in which each transfer jig is separated using a function.

First, a dental gypsum model of a patient is made in a dentist's office, and then three-dimensional (3D) shape data of a tooth is illustrated by three-dimensional (3D) scanning using a three-dimensional scanning system (not shown) for dental computer modeling. Extract as shown in 5.

The surgeon can then set up the position of the bracket on the computer system using a dedicated program for tooth set-up which can predict the result after orthodontic treatment with the tooth shape data obtained above, ie 3D tooth CAD data. Using the dedicated program, it is possible to design a diagnosis / treatment result prediction / treatment device for orthodontic treatment.

The doctor reads 3D tooth CAD data for tooth setting on the dedicated program. The 3D tooth CAD data read is data which can move each tooth A one by one. Then, attaching the bracket 200 to each tooth (A) in the dedicated program and coupled by passing the calibration wire 11 through the slot of the bracket 200, manually moving each tooth to the desired calibration position. Or rearrange the teeth to achieve a uniform orthodontic state as shown in Figure 6 through the automatic correction function. According to the tooth set-up for orthodontics, the bending wire 13 is formed on the orthodontic wire 11 accordingly, and these data data are later reflected in the procedure for orthodontics after attaching the bracket to the teeth. do.

When the tooth set-up is completed as described above, as shown in Figs. 7A and 7B, the image data of the transfer jig 100, which is prepared in advance for each bracket 200 and stored in the storage device, is called out and then the coupling part of the jig ( 110 is coupled to the slot 210 of the bracket 200. In this case, while the cap 104 portion of the transfer jig 100 is coupled with the tooth A, the shape data of the tooth A is invariant, and the portion of the cap 104 portion that overlaps the tooth A is removed. The coupling is made in a way.

As a result, the lower end shape of the portion of the cap 104 coupled to the tooth A of the transfer jig 100 has a different shape according to the upper end shape of the tooth and the attachment position of the bracket 200.

Thereafter, in order to obtain the shape data of the transfer jig 100, each transfer jig is separated as shown in FIG. 8 by using a boolean function. The cap 104 of the separated transfer jig 100 has a tooth mark B of the patient on the bottom thereof. As a result, shape data of the patient-specific transfer jig 100 is obtained.

The final data of the transfer jig 100 shown in FIG. 8 is digital shape data reflecting both tooth setup and bracket setup. The final digital shape data of the transfer jig 100 is then transferred to a laboratory or a manufacturing facility equipped with a Rapid Prototyping (RP) machine, whereby only the cap 104 of the transfer jig 100 is made of transparent resin by the RP machine. do. In the present invention, the digital shape data is supplied to the RP machine after the conversion to the CAD file to enable the CAM operation.

In the present invention, since all the necessary prerequisites for orthodontics are reflected in the cap 104 of the transfer jig, the connector 112 coupled to the cap 104 and the bracket 200 coupled to the connector 112 are provided. The shape does not have to change depending on the patient or the teeth. As a result, in the present invention, the connector 112 and the bracket 200 can be manufactured by mass production in advance, thereby lowering the manufacturing cost, and these parts can be reused after cleaning, so that the cost of the orthodontic user is required. The burden can be greatly reduced. The connector 112 is manufactured in three sizes for the anterior part, the premolar part and the posterior part according to the size of the tooth.

Thereafter, when the cap 104 of the jig 100 and the connector 112 are engaged, as shown in FIG. 9, it is obtained.

Then, after coupling the coupling portion 110 of the jig 100 to the slot of the orthodontic bracket 200, as shown in Figure 10, the cap 104 of the jig 100 to the upper portion of the tooth (A) When mounted on the base 220 of the orthodontic bracket 200 is set to a predetermined position on the surface of the tooth.

Thereafter, the photocurable bond 116 previously attached to the bottom of the base 220 is cured with a laser to fix the bracket 200 to the teeth A.

When the hardening treatment is completed, the fixing protrusion 108 of the connector 112 protruding from the through hole 102 of the cap 104 is pressed using a separation tool. Accordingly, the fixing protrusion 108 is pushed out of the through hole 102 of the cap 104 and the connector 112 is separated from the cap 104 and the bracket 200 as shown in FIG. 11. .

The cap 104 of the jig 100 is then separated from the tooth A, as shown in FIG.

Subsequently, a straightening wire (not shown) is inserted into the slot 210 of the bracket 200, and the straightening wire is bent and molded as shown in FIG. 6 to allow displacement in the desired direction to the bracket 200 for orthodontic correction. Induce.

In the above description of the embodiment it is illustrated that a predetermined subscription is given to the bracket, in the present invention, any type of bracket to which a subscription is given may be used together with a transfer jig, and furthermore, in the present invention, Since the transfer jig is given a subscription, it is possible for the bracket to apply this type of product without a subscription.

13 is a perspective view of an orthodontic bracket according to a second preferred embodiment of the present invention. The bracket 300 is similar to the structure of the first embodiment, but is attached to a tooth (not shown) and has a slot 310 into which a wire (not shown) is inserted in the center of the upper surface in the longitudinal direction of the body. A base 320; First to fourth hooks 331 to 334 which are vertically installed at both ends of the base 320 and extend in a downward direction from an upper end thereof; The base 320 includes a pair of hollow windows 340a and 340b for checking whether the photocurable bond is bonded when the base 320 is attached to the teeth along the longitudinal direction at both ends.

The first to fourth rings 330a to 330d are used to induce a force applied to a tooth in a specific direction by hanging an elastic band in a state attached to the tooth surface.

The bracket 300 of the second embodiment is made of medical stainless steel, and since the prescription is given to the jig, the bracket does not have to be given any prescription, and thus the shape may be very simple, simple, and compact. .

As described above, in the present invention, since it is manufactured based on the non-prescription method, it is compact and the structure is very simple to minimize foreign objects when worn for a long time in the oral cavity so that the patient feels comfortable.

In addition, in the present invention, by applying the individual subscription value that is most suitable for the individual patient to the transfer jig instead of the average value 'prescription' value of the general bracket, the bracket does not have to be given a subscription value. Since the structure of the bracket is very simple, the problem of cleanliness caused by food and secretion generated during oral installation for a long time can be solved more easily, and the product is competitive because the price is 1/10 or less than the conventional product.

In the present invention, since the positioning procedure of the bracket with respect to the tooth surface is mounted on the patient using the jig as it is, the value designed by the computer can be quickly and easily used so that even the general public, not the doctor, can mount it.

In the present invention, the cap is detachably coupled to the tooth and has a split type structure in which the connector to which the bracket is coupled to the lower end is easily separated and the size of the bracket is small and the structure is simple, so that the procedure is performed on the lingual or labial side of the tooth. All is possible.

In addition, in the present invention, since the cap part in contact with the tooth can be freely adjusted, the maximum contact area for stable and accurate bracket mounting can be realized, and the lower end is connected to the groove (slot) of the bracket, so the relationship between the bracket and the tooth is achieved. Can be reproduced accurately.

Moreover, in the present invention, if the jig is lost, only the required jig can be remanufactured using the data stored in the computer, and the quality of the product is constant and excellent because the cap of the jig is designed and manufactured using CAD / CAM. It can be mass-produced, so the price is low.

In addition, the present invention is divided into two parts to discard only the cap portion in contact with the teeth and the connector portion can be recycled to reduce the burden on the user, the doctor only laser the photocurable adhesive with the cap portion in contact with the teeth Since the positioning and fixing of the bracket are completed by scanning and curing, the procedure time can be significantly shortened as compared with the conventional method.

Claims (2)

A base having a bottom surface attached to the tooth and having a slot into which a wire is inserted in the center of the upper surface in the longitudinal direction of the body; Orthodontic bracket is installed vertically at both ends of the base, the end portion of the body is branched from the center consisting of first to fourth hooks (curve) curved in the downward direction. Orthodontic brackets; It consists of a bracket positioning jig for attaching the orthodontic bracket to the tooth surface, The orthodontic bracket includes a base having a bottom surface attached to the tooth and having a slot into which a wire is inserted in the center of the upper surface in the longitudinal direction of the body; It is installed vertically at a predetermined length at both ends of the base, the end of the body is composed of the first to fourth hooks (hook) which is branched from the center and curved downward, The orthodontic bracket positioning jig is formed in the lower end of the groove in contact with the teeth, the cap having a through hole in the longitudinal direction on the upper inner peripheral surface of the body, and is detachably inserted and fixed to the through hole of the cap on one side The orthodontic system comprising a connector having a fixing projection, the other side is bent to the lower end of the body having a coupling portion.

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