WO2018101784A1 - Jig for guiding bracket position and method for manufacturing same - Google Patents

Abstract

The present invention relates to a jig for guiding bracket position and method for manufacturing same and, more specifically, to a jig for fixing a bracket, which is used for lingual-side correction, to a correct mounting position of the tooth and attaching same. By forming and manufacturing a jig with a bracket by means of 3D modeling, a bracket can be attached to a correct position, manufacturing error can be minimized and productivity can be increased.

Description

Jig for Bracket Positioning Guide and Manufacturing Method

The present invention relates to a jig for bracket position guide and a method of manufacturing the same, and more particularly to a jig for bracket position guide for fixing and attaching the bracket used for lingual correction to the correct mounting position of the tooth and a method of manufacturing the same. The present invention relates to a bracket position guide jig and a method of manufacturing the jig, which can be attached to the bracket at the correct position by manufacturing the jig together with the bracket through 3D modeling, minimizing the manufacturing error, and increasing the productivity.

Orthodontic devices are widely used for orthodontic treatment for crooked teeth, protruding mouths, malocclusion teeth, as well as for cosmetic purposes through a balanced contour to straighten twisted teeth.

The orthodontic device includes a metal orthodontic device for fixing a metal bracket on the front of the tooth, a ceramic orthodontic device for fixing a tooth-like ceramic bracket on the front of the tooth, a lingual orthodontic device for fixing the bracket inside the tooth, a tooth-shaped transparent material tooth cover Transparent orthodontic devices that are worn on the teeth, such as the mouthpiece is used.

Among them, a lingual orthodontic device having excellent orthodontic treatment effects is widely used without the orthodontic device being visually recognized.

The lingual orthodontic device is to fix the bracket to the inside of the tooth, lingual tooth surface, by coupling the orthodontic wire connected between the through-holes of the bracket is a way that the teeth are moved according to the expansion force of the orthodontic wire to produce a corrective effect.

Here, the lingual orthodontic device is not visible to the outside because the bracket is formed on the inside of the tooth, lingual, and because the tooth is corrected by the expansion force of the orthodontic wire has a short period of correction, but is not attached to the correct position of the inner surface of the tooth If not, there is a problem that the correction power falls.

In order to solve the above problems, a jig for guiding the mounting position of the bracket is used, but the conventional jig guides the bracket in a state in which the wire is connected to the bracket.

In addition, since the resin resin is poured on the plaster dental model by manufacturing the resin according to the manual manufacturing process, there is a problem that the productivity is lowered and the accuracy is lowered due to manufacturing errors.

In order to solve the above problems, it is an object of the present invention to provide a bracket position guide jig and a method of manufacturing the same that can guide the lingual orthodontic bracket is attached to the correct position of the teeth.

Bracket position guide jig according to the present invention for achieving the above object is a jig body having a tooth receiving portion for receiving the shape of the tooth on the inner surface; A bracket accommodating part in which a bracket to be attached to a tooth is mounted on an inner side of the body; It is characterized in that the inside of the tooth receiving portion of the jig body to press the bracket to be fixed at the correct position and the pressing portion protruding in relief to increase the adhesion.

The pressing portion is characterized in that formed in the shape of a strip, a projection or a combination thereof.

When the pressing portion is formed with a projection, it is pressed in the vertical direction with respect to the mounting plane of the bracket, but is formed at the center of the bracket among the areas in contact with the bracket so as to press the center of the bracket, or the tooth attachment surface of the bracket is not flat so that the lifting or incompleteness of the bracket When the attachment is expected to occur is characterized in that formed in the portion to press the attachment weak portion vertically to press the attachment weak portion.

When a plurality of the pressing unit is formed, it is characterized in that it is formed in a uniform distribution of the area in contact with the bracket for uniform pressing of the bracket.

The outer side of the tooth of the jig body is formed in a size covering 1/3 to 2/3 of the tooth, the inner side is characterized in that it is formed in a size that completely covers the tooth.

On the other hand, jig model generation system for bracket position guide according to the present invention comprises a bracket setting unit for setting the bracket to the correct position of the teeth need correction; Jig setting for setting the jig for accommodating and fixing the bracket and the tooth while the pressing portion for pressing the bracket to fix the bracket to the correct position of the tooth is formed inside the bracket receiving portion and the bracket is set on the tooth. Wealth; It characterized in that it comprises a database for storing and managing the patient's teeth data, basic bracket and basic jig data.

The bracket setting unit arranges a basic bracket on a selected tooth that needs correction among 3D tooth data of the patient, adjusts the height of each bracket to be uniformly aligned, and arranges each bracket parallel to the inner surface of the tooth at the center of the tooth. It is characterized by setting the bracket.

The bracket setting unit designates a tooth for which a bracket is required, and measures a minimum height from a gum boundary where the bracket can be installed to the bottom of the bracket in consideration of the size of the bracket for each tooth; Arranging a bracket based on a tooth having a maximum value Max among the measured minimum heights; Generate an ideal arch line with respect to the bottom of the arranged bracket; Placing a bracket for the remaining teeth on the ideal arch; Set brackets to teeth by adjusting the position of the individual brackets so that the brackets are centered on the teeth by matching the brackets with each tooth against the placed brackets, and by adjusting the direction of the individual brackets so that the individual brackets are flush with the tooth surface. It features.

The jig setting unit generates a basic jig, and generates the pressing unit to process the basic jig into a shape that simultaneously receives the tooth on which the bracket is set to set a jig on each tooth; The pressing portion is characterized in that the protrusion is formed from the inner surface of the tooth receiving portion, a band shape or a combination thereof.

When the pressing portion is formed with a projection, the jig setting portion presses in a vertical direction with respect to the attachment plane of the bracket, but is generated in the center of the bracket among the areas in contact with the bracket so as to press the center of the bracket, or the tooth attachment surface of the bracket is not flat. If it is expected that the lifting or incomplete attachment of the attachment is characterized in that it is generated in the vertically pressing portion of the attachment weak portion to press the attachment weak portion.

The jig for bracket position guide according to the present invention guides the bracket to be attached at the correct position of the tooth, thereby producing an excellent effect of maximizing the corrective effect.

In addition, since the jig is manufactured together with the bracket through 3D modeling, there is an excellent effect of increasing the yield and productivity by minimizing the manufacturing error as well as the accuracy of the coupling.

1 schematically shows a jig for a bracket position guide according to a preferred embodiment of the present invention.

2 to 6 schematically illustrate the formation of the pressing portion according to the preferred embodiment of the present invention.

7 is a system configuration diagram schematically showing a jig model generation system for bracket position guide according to an embodiment of the present invention.

8 is a flowchart schematically illustrating a method for manufacturing a jig for bracket position guide according to a preferred embodiment of the present invention.

9 to 16 are process diagrams schematically showing a method for manufacturing a jig for bracket position guide according to a preferred embodiment of the present invention.

17 and 18 illustrate in detail the process of aligning the bracket in accordance with a preferred embodiment of the present invention.

Jig for bracket position guide according to the present invention comprises a jig body having a tooth receiving portion for receiving the shape of the tooth on the inner surface; A bracket accommodating part in which a bracket to be attached to a tooth is mounted on an inner side of the body; It is characterized in that the inside of the tooth receiving portion of the jig body to press the bracket to be fixed at the correct position and the pressing portion protruding in relief to increase the adhesion.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 schematically shows a jig for a bracket position guide according to a preferred embodiment of the present invention.

Referring to Figure 1, the jig for bracket position guide according to the present invention is a jig body 20 having a tooth receiving portion 210 for receiving the shape of the teeth on the inner surface and the bracket receiving portion formed on the inner surface of the body And 220.

In addition, the jig body 210 may be formed with a jig identification symbol formed in an embossed or intaglio form to identify the individual jig on the outer side of the tongue. The jig identifier may be formed of a number of teeth to be accommodated.

The outer side of the tooth of the jig body 20 is formed to have a size to cover 1/3 to 2/3 of the tooth, preferably half of the tooth, and the inner side of the tooth is formed to a size that completely covers the tooth. Can be.

Here, the tooth outer portion does not need to cover the entire tooth outer portion because it serves to cover the teeth in the form of hooks, and is preferably formed to have a size that covers only 1/2 of the tooth outer portion (front side of the tooth).

Since the jig body 20 is configured to cover the teeth, the inner surface is formed in the same geometric shape as the shape of the tooth, so that the jig is mounted on the teeth in a state where the bracket is accommodated in the bracket receiving portion 220 of the inner surface. The bracket can be attached to the correct position of the tooth simply by fixing it.

2 schematically shows that the pressing unit 230 is formed in the jig body 20 according to the present invention.

The jig serves to fix the bracket at the correct position of the tooth, but as described above, the jig body 20 has a pressing portion 230 to apply the pressure to attach the bracket to the correct position while fixing the bracket at the correct position. It can be configured to increase the adhesion of the bracket.

When the jig only fixes the position of the bracket, the surface of the tooth is generally uneven, so that a slight error may occur at the actual attachment position of the bracket. Therefore, by pressing the pressing unit so that the bracket is correctly attached to the correct position, it is possible to increase the attachment accuracy and adhesion of the bracket.

The pressing unit 230 may be configured to press in a vertical direction with respect to the mounting plane of the bracket, it may be composed of at least one projection.

The pressing unit 230 is formed in the center of the bracket of the area in contact with the bracket to press the vertical direction with respect to the mounting plane of the bracket to press the bracket as shown in Figure 3 to press the bracket in place It is preferable.

When a plurality of pressing portions 230 are formed, it is preferable to form a uniform distribution among the areas in contact with the bracket for uniform pressing of the bracket.

In addition, when the tooth attachment surface of the bracket is not flat, it is expected that the lifting portion or incomplete attachment of the bracket will occur. Can be formed.

In addition, the pressing unit 230 may be configured in the form of a band as shown in Fig. 5 or 6, as shown in Figure 6, although not shown may be configured in the form of a mixture of the projection and the band. Since the pressing point 230 is configured to protrude at a certain height to press the bracket, it is obvious that the pressing point 230 may be configured in various shapes protruding at a certain height.

The pressing unit 230 serves to press the bracket in place and to increase the adhesive force, but if the height of the pressing point is too high, the bracket is too large force can be applied to the teeth because it is too much force on the teeth It is preferable that it is comprised so that it may protrude to the height which does not give it, and it is preferable to form in thickness below 2 mm.

7 is a system configuration diagram schematically showing a jig model generation system for bracket position guide according to an embodiment of the present invention.

Referring to FIG. 3, the jig model generation system for bracket position guide according to the present invention includes a bracket setting unit 110 for setting a bracket at an accurate position of a tooth to be corrected, and the bracket in a state where the bracket is set on a tooth. It may include a jig setting unit 120 for setting the jig for receiving and fixing the teeth and a database 130 for storing and managing the dental data, the basic bracket and the basic jig data of the patient.

The bracket setting unit 110 places a basic bracket on a selected tooth that needs to be corrected among the 3D tooth data of the patient, the height is uniformly aligned, positioned at the center of each tooth, and the bracket is disposed parallel to the inner surface of the tooth. It is responsible for setting the.

The jig setting unit 120 generates a basic jig, and serves to set the jig to each tooth by processing the basic jig into a shape that simultaneously accommodates the teeth set the bracket.

Hereinafter, a method for manufacturing a jig for bracket position guide according to a specific embodiment of the present invention will be described.

8 is a flowchart schematically illustrating a method for manufacturing a jig for bracket position guide according to a preferred embodiment of the present invention.

Referring to FIG. 8, first, a bracket to be attached to a tooth is set.

More specifically, as shown in FIG. 9, 3D tooth data of a scanned patient is called.

The 3D tooth data is dental data of a patient's current state, may be obtained by 3D scanning a tooth bone, and may be obtained by directly scanning the patient's teeth through a 3D scanner.

Subsequently, a tooth in need of lingual correction is selected from the 3D tooth data, and a basic bracket to be mounted on the selected tooth is called up as shown in FIG. 10. Here, the basic 3D bracket refers to basic bracket data in a state in which a direction and an angle are not adjusted.

The bracket setting portion aligns the basic brackets by placing the basic brackets on the inner side of the selected tooth to be corrected, respectively.

More specifically, it is important that the bracket is formed at a constant height because the bracket is inserted to provide a straightening force, so it is important to position the bracket setting portion to be aligned with an ideal arch line.

In addition, since the bracket has a large area to be attached to the inner surface of the tooth to maintain durability even in a large orthodontic force, the bracket setting unit arranges the basic bracket to be placed on each tooth so that the contact area of the inner surface of the tooth is maximum, and the height of the bracket is increased. Arrange to be consistent.

17 and 18 illustrate in detail the process of aligning the bracket in accordance with a preferred embodiment of the present invention.

More specifically, the bracket setting portion first designates a tooth requiring a bracket as shown in FIG. 17A, and considering the size of the bracket for each tooth, a minimum height from a gum boundary where the bracket can be installed to the bottom of the bracket. Measure

The bracket is disposed based on the tooth having the maximum value Max among the measured minimum heights, and an ideal arch line is generated based on the lower end of the disposed bracket as shown in (B), and FIG. 18C. Place the brackets for the remaining teeth on the ideal arch as shown.

In general, the bracket is preferably installed as close as possible to the root of the tooth in order to increase the orthodontic force and preferably as low as possible in the tooth.

Therefore, it is possible to align the lowest height of the teeth along the ideal arch line only by arranging the tooth C having the maximum value Max among the minimum heights.

Subsequently, the position of the individual brackets is adjusted so that the brackets are positioned at the center of the teeth with respect to the aligned brackets, and the directions of the individual brackets are adjusted so that the individual brackets are flush with the tooth surface.

And as shown in (D) to adjust the direction of the individual bracket so that the individual bracket is horizontal with the tooth inner surface.

If the individual bracket is not located in the center of the tooth and not parallel to the inner surface of the tooth, the corrective force may act in a different direction or angle than the direction of the tooth, in which case it may adversely affect the overall orthodontic force.

When the setting of the bracket is completed as described above, the jig setting unit sets the jig for accommodating the teeth and the bracket simultaneously with the bracket set on the tooth.

More specifically, the jig setting unit generates a basic jig to be applied to the tooth on which the bracket is set, as shown in FIG. 12, and sets the jig by machining the basic jig into a shape that simultaneously receives the bracket and the tooth as shown in FIG. 13.

The basic jig may be formed in a geometric shape that can be worn by receiving a shape on the tooth in a state before the bracket is formed on the tooth.

The basic jig means a state in which the bracket accommodating part is not formed on the inner surface of the jig body, and is formed in the form of a hook for accommodating the teeth, and the front surface of the tooth is formed to cover 1/3 to 2/3 as shown in FIG. 14. The back side (the lingual side) of the tooth may be formed to have a size covering the entire back side of the tooth that does not touch the gums (gum).

Since the back of the tooth (the lingual side) is the part where the bracket is fixed, the larger the area of the jig body, the more stable the guide can be provided at the correct position.However, when touching the gingival, the gingival force is applied to the gingival, which may cause side effects such as inflammation. It is desirable to form it to a size that does not.

Here, by pressing the bracket inside the bracket receiving portion 120 of the jig to create a pressing portion 130 for fixing in the correct position and to increase the adhesion of the bracket.

Since the generation of the pressing unit 130 has been described in detail with reference to FIG. 2, a detailed description thereof will be omitted.

Subsequently, the jig setting unit matches the basic jig while the bracket is set on the tooth, thereby removing the bracket area protruding from the inside of the tooth to complete the jig setting.

Through this, it is possible to set a jig for accommodating the tooth and the bracket at the same time.

When the jig is set as above, the jig is aligned to manufacture the jig.

More specifically, the jig setting unit removes the bracket from the jig and arranges the brackets in the order of tooth identification symbols, and then arranges the jig in a row in accordance with the rotation angle of the jig group composed of a plurality of jig as shown in FIG. 15.

Here, the jig group may be composed of a jig disposed in the upper jaw of the patient or a group of jigs disposed in the lower jaw.

Subsequently, the jig setting unit generates a tag in which the jig group identification information is inserted into the arranged jig, generates a frame connecting the tag with each jig, and a jig group composed of a plurality of jig groups is formed as shown in FIG. 16. Create a jig group to form.

Here, the jig group identification information may include information for specifying the use of the jig, such as the patient's name, maxilla and mandible.

When the jig group is generated as described above, the jig group is 3D printed through a 3D printer, and each jig is separated from the frame of the jig group to complete jig manufacturing.

Although the detailed description of the present invention described above has been described with reference to the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiment, and those skilled in the art will appreciate It will be understood that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention.

The present invention relates to a jig for bracket position guide and a method of manufacturing the same, and more particularly to a jig for bracket position guide for fixing and attaching the bracket used for lingual correction to the correct mounting position of the tooth and a method of manufacturing the same. Since the jig is manufactured by shaping the jig together with the bracket through 3D modeling, the bracket can be attached to the correct position, the manufacturing error is minimized, and the productivity can be increased.

Claims (10)

Jig body having a tooth receiving portion for receiving the shape of the tooth on the inner surface; A bracket accommodating part in which a bracket to be attached to a tooth is mounted on an inner side of the body; Jig for bracket position guide, characterized in that the pressing portion protruding in relief to press the bracket to be fixed to the correct position inside the jig body fixed to the correct position and to increase the adhesion. The method of claim 1, The pressing portion Jig for bracket position guide, characterized in that formed in the shape of a band, a projection or a combination thereof. The method of claim 2, When the pressing portion is formed with a projection, it is pressed in the vertical direction with respect to the mounting plane of the bracket, but is formed at the center of the bracket among the areas in contact with the bracket so as to press the center of the bracket, or the tooth attachment surface of the bracket is not flat so that the lifting or incompleteness of the bracket Jig for bracket position guide, characterized in that formed in the portion to vertically press the attachment weak portion to press the attachment weak portion when it is expected to occur. The method of claim 2, Jig for bracket position guide, characterized in that formed in a uniform distribution among the areas in contact with the bracket for uniform pressing of the bracket when a plurality of the pressing portion is formed. The method of claim 1, Tooth outer portion of the jig body Formed to a size covering 1/3 to 2/3 of the tooth, Jig for bracket position guide, characterized in that the inner portion is formed in a size that completely covers the teeth. Bracket setting unit for setting the bracket to the correct position of the teeth need correction; Jig setting for setting the jig for accommodating and fixing the bracket and the tooth while the pressing portion for pressing the bracket to fix the bracket to the correct position of the tooth is formed inside the bracket receiving portion and the bracket is set on the tooth. Wealth; Jig model generation system for bracket position guide comprising a database for storing and managing the patient's teeth data, basic bracket and basic jig data. The method of claim 6, The bracket setting portion Set the brackets by placing the basic brackets on the selected teeth that need correction in the patient's 3D tooth data, adjusting the height of each bracket uniformly, and adjusting each bracket to be parallel to the inner surface of the tooth in the center of the tooth. Jig model generation system for bracket position guide, characterized in that. The method of claim 7, wherein The bracket setting portion Specify a tooth for which the bracket is required, and measure the minimum height from each gum boundary to the bottom of the bracket where the bracket can be installed, taking into account the size of the bracket for each tooth; Arranging a bracket based on a tooth having a maximum value Max among the measured minimum heights; Generate an ideal arch line with respect to the bottom of the arranged bracket; Placing a bracket for the remaining teeth on the ideal arch; Set brackets to teeth by adjusting the position of the individual brackets so that the brackets are centered on the teeth by matching the brackets with each tooth against the placed brackets, and by adjusting the direction of the individual brackets so that the individual brackets are flush with the tooth surface. Jig model generation system for bracket position guide. The method of claim 4, wherein The jig setting portion Generating a base jig, processing the base jig into a shape that simultaneously accommodates the teeth on which the bracket is set, and setting the jig on each tooth; Jig model generation system for the bracket position guide, characterized in that the pressing portion is formed in a protrusion, a band shape or a combination thereof protruding from the inner surface of the tooth receiving portion. The method of claim 9, When the pressing portion is formed of a projection The jig setting part is pressed in the vertical direction with respect to the mounting plane of the bracket but is generated in the center of the bracket of the area in contact with the bracket so as to press the center of the bracket, or the tooth attachment surface of the bracket is not flat will cause the lifting or incomplete attachment of the bracket Jig model generation system for bracket position guide, characterized in that the generation in the vertically pressing portion of the attachment weakening portion to press the attachment weakening portion if expected.

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