KR20230164882A - Custom ready-made orthodontic bracket - Google Patents

Abstract

One embodiment of the present invention is a customized ready-made orthodontic bracket, comprising a base part on one side of which is attached to a target tooth, and a body part protruding from the other side of the base part and forming a slot into which an orthodontic wire is inserted, the customized ready-made orthodontic bracket The parameters of the bracket are determined based on the statistical group to which the target value belongs among a plurality of statistical groups obtained from the statistical distribution of a plurality of target values, and the parameter is one or more of torque angle, angle, rotation offset, and in-out, We provide customized, ready-made orthodontic brackets.

Description

CUSTOM READY-MADE ORTHODONTIC BRACKET}

The present invention relates to customized, ready-made orthodontic brackets, and more specifically, to customized, ready-made orthodontic brackets that can be mass-produced in a certain form.

Teeth present in the human oral cavity may have uneven tooth alignment (dentition) due to congenital or acquired deformity factors. This condition in which the teeth are uneven is called malocclusion, and this malocclusion causes aesthetic problems that adversely affect human appearance in human life, as well as functional problems such as food intake and incorrect pronunciation of language.

As a dental treatment method for correcting such malocclusion, orthodontic brackets and wires are used to apply continuous force to the teeth to cause movement of the teeth along with remodeling of the alveolar bone surrounding the teeth.

Specifically, the orthodontic bracket is attached to the teeth, and the wire combines with the orthodontic bracket to apply continuous force to the orthodontic bracket. Here, since the orthodontic brackets are placed on each of the upper and lower teeth, a plurality of orthodontic brackets are used, and the plurality of orthodontic brackets are connected to each other by wires. Since the teeth are arranged in a curved shape from the left molar to the right molar, the wire is also formed in an arch shape to correspond to the arrangement of the teeth. These wires apply force to the brackets attached to the teeth, remodeling the alveolar bone, so the teeth move and the alignment is corrected.

On the other hand, conventional ready-made orthodontic brackets have the advantage of being standardized and mass-produced, making them inexpensive. However, although the shape of the teeth is different for each patient, there is a problem that the efficiency of orthodontic treatment is reduced by attaching standardized orthodontic brackets without considering this.

Customized orthodontic brackets are highly efficient in orthodontic treatment because they are manufactured to fit the patient's teeth, but they have the disadvantage of being expensive and impossible to mass produce.

The present invention is intended to solve the problems of the prior art described above, and the purpose of the present invention is to provide a customized, ready-made orthodontic bracket that covers a large number of patients and can be mass-produced in a certain shape.

One aspect of the present invention is a customized ready-made orthodontic bracket, comprising a base part on one side of which is attached to a target tooth, and a body part protruding from the other side of the base part and forming a slot into which an orthodontic wire is inserted, the customized ready-made orthodontic bracket The parameter of is determined based on the statistical group to which the target value belongs among a plurality of statistical groups obtained from the statistical distribution of a plurality of target values, and the parameter is one or more of torque angle, angle, rotation offset, and in-out, customized We provide ready-made orthodontic brackets.

In one embodiment, the tooth types of the target teeth are maxillary central incisors, maxillary lateral incisors, maxillary canines, maxillary premolars, maxillary first molars, mandibular 4th incisors, mandibular canines, mandibular first premolars, mandibular second premolars, and mandibular first molars. It may include at least one of:

In one embodiment, the statistical distribution may be for target values of a patient corrected with a ready-made orthodontic bracket.

In one embodiment, the plurality of statistical groups may be defined to be continuous with each other and cover more than 90% of the statistical distribution.

In one embodiment, the torque angle may be the median of one statistical group among the plurality of statistical groups.

According to one aspect of the present invention, since the parameters of the correction bracket are determined from a plurality of statistical groups covering more than 90% of the statistical distribution of each target value, the effect of a customized correction bracket can be expected even though it is an off-the-shelf correction bracket.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

Figure 1 is a perspective view of a custom-made orthodontic bracket according to an embodiment of the present invention.
FIG. 2 is a side view of FIG. 1 and is a diagram explaining the torque angle.
FIG. 3 is a top view of FIG. 1 and is a view explained by angles.
FIG. 4 is a front view of FIG. 1 and is a diagram explaining rotation offset.
FIG. 5 is a side view of FIG. 1 and is a diagram explaining in-out.
Figure 6 is a plan view of the upper and lower jaw.
Figure 7 relates to custom-made orthodontic brackets with different torque angles.
Figure 8 relates to custom off-the-shelf orthodontic brackets with different angles.
Figure 9 relates to custom off-the-shelf orthodontic brackets with different rotation offsets.
Figure 10 relates to custom off-the-shelf orthodontic brackets with different in-outs.

Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention may be implemented in various different forms and, therefore, is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when it is said that a part “includes” a certain element, this means that other elements may be further included rather than excluding other elements, unless specifically stated to the contrary.

As used herein, terms containing ordinal numbers such as 'first' or 'second' may be used to describe various components or steps, but the components or steps should not be limited by the ordinal numbers. . Terms containing ordinal numbers should be interpreted only to distinguish one component or step from other components or steps.

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

Figure 1 is a perspective view of a customized, ready-made orthodontic bracket 100 according to an embodiment of the present invention. As shown in FIG. 1, the custom-made orthodontic bracket 100 according to an embodiment of the present invention is configured to include a base portion 110 and a body portion 120.

The base portion 110 is formed in a plate shape, and one surface, the tooth attachment surface 111, is attached to the tooth with an adhesive. At this time, the base portion 120 may be attached to the back as well as the front of the tooth. Here, the front of the tooth is the surface of the tooth facing the lips, and the back of the tooth is the surface opposite the front, meaning the surface of the tooth facing the tongue.

Additionally, the tooth attachment surface 111 of the base portion 110 may be formed as a curved surface so that it can be better attached to the tooth. However, it is not limited to this, and the tooth attachment surface 111 of the base portion 110 may be formed as a flat surface.

Meanwhile, the body portion 120 protrudes from the other surface of the base portion 110 and has a slot 121 for receiving a wire. Here, the slot 121 is formed by being recessed in a direction from the outer surface of the body portion 120 toward the tooth attachment surface 111 of the base portion 110 so that the upper side is open. In detail, the bottom surface of the slot 121 is formed to be horizontal along the mesiocardial axis (X) extending to both sides of the body portion 120, and the walls of the slot 121 extend from both ends in the width direction of the bottom surface to the body. It is formed to protrude in the protruding direction of the portion 120.

In addition, when a wire is inserted into the slot 121, the body portion 120 and the wire are coupled to each other. At this time, the slot 121 may be formed to correspond to the outer peripheral surface of the wire, and as a result, the wall surface of the slot 121 is in close contact with the outer peripheral surface of the wire.

The custom-made orthodontic bracket 100 according to an embodiment of the present invention is elastically coupled to the body portion 120 and further includes a clip portion 130 capable of receiving and supporting a wire inside the slot 121. can do.

An insertion portion 131 inserted between the base portion 110 and the body portion 120 is formed at one end of the clip portion 130, and a ring-shaped hook 132 is formed at the other end. When the clip portion 130 is assembled to the body portion 120, the hook 132 covers the open upper side of the slot 121, so that the upper end of the wire is supported on the inner surface of the end of the hook 132. That is, when the wire is inserted into the slot 121, the wire may be supported by the elastic force provided from the end of the hook 132.

On the other hand, orthodontic brackets use the power of a wire to apply the force necessary for correction to the teeth, thereby achieving orthodontic treatment. At this time, since the force applied to the teeth or the arrangement of the teeth is determined by parameters consisting of torque angle, angle, rotation offset, and in-out, the above parameters are one of the important factors that determine orthodontic efficiency. Below, the parameters are described.

Figure 2 is a side view of Figure 1. As shown in FIG. 2, the slot 121 may be formed to have a torque angle α by being inclined at an angle with respect to the tooth attachment surface 111 of the base portion 110.

In detail, the longitudinal axis passing through the center of the bottom surface of the slot 121 in the direction of the myocardial axis (X) so as to be perpendicular to the myocardial axis (X) of the slot 121. Let's say, the vertical axis ( ) is a tangent to the tooth attachment surface 111 at the intersection point B1 where it intersects the tooth attachment surface 111 of the base portion 110. , and the tangent line ( ), the vertical axis is perpendicular to When , the torque angle (α) is the vertical axis ( ) and the vertical axis ( ) is the angle between

That is, if this torque angle (α) is expressed differently, the tangent line between the bottom surface of the slot 121 and the tooth attachment surface 111 of the base portion 110 ( The vertical axis perpendicular to ) ( ) is the angle between

At this time, the torque angle (α) is a line perpendicular to the tangent to the tooth attachment surface 111 of the base portion 110 ( ), if it is tilted toward the occlusal side, it has a positive (+) value, and if it is tilted toward the gingiva, it has a negative (-) value.

Figure 3 is a top view of Figure 1, and is a diagram explaining the angle (β). As shown in Figure 3, the vertical axis (X) perpendicular to the mesial axis (X) of the slot 121 ) is the central occlusal-intergingival axis ( ), which can be tilted about the vertical axis ( ) and the central occlusal-intergingival axis ( The angle formed by ) is called angle (β).

FIG. 4 is a front view of FIG. 1 and is a diagram explaining the rotation offset γ. As shown in FIG. 4, a perpendicular line extending from both ends of the slot 121 toward the base portion 110 , When the above repair line ( , ) and the axis connecting the intersection points (B2, B3) of the tooth attachment surface 111 of the base portion 110 ( The angle formed by ) with respect to the mesiocardial axis (X) is called the rotation offset (γ).

FIG. 5 is a side view of FIG. 1 and is a diagram explaining in-out (d). As shown in FIG. 5, the bottom surface of the slot 121 and the longitudinal axis passing through the center of the bottom surface of the slot 121 in the direction of the myocardial axis (X) so as to be perpendicular to the myocardial axis (X) of the slot 121. ( The distance between the intersection point (B1) where ) intersects the tooth attachment surface 111 of the base portion 110 is called in-out (d).

Figure 6 is a plan view of the upper and lower jaw. As shown in Figure 6, the upper jaw is formed along the molar direction from the center, with central incisors (U1), lateral incisors (U2), canines (U3), first premolars (U4), second premolars (U5), and first molars (U6). ), second molars (U7), and third molars (U8) are placed in that order. In addition, as shown, the lower jaw follows the molar direction from the center, including central incisors (L1), lateral incisors (L2), canines (L3), first premolars (L4), second premolars (L5), and first molars (L6). ), second molars (L7), and third molars (L8) are placed in that order.

Meanwhile, general orthodontic brackets are placed on each of the target teeth of the upper and lower jaw. Orthodontic brackets must be formed to have appropriate parameters according to the shape and angle of the target tooth, but ready-made orthodontic brackets have constant parameter values, which reduces the efficiency of correction, and custom orthodontic brackets have the disadvantage of being expensive and impossible to mass produce.

Accordingly, the parameters of the custom-made orthodontic bracket 100 according to an embodiment of the present invention are characterized in that they are determined from the statistical distribution of a plurality of target values.

The statistical distribution of target teeth may include, for example, the statistical distribution of the shape and angle of the target tooth and the alignment angle with adjacent target teeth, but is not limited thereto. In addition, it is desirable to derive the statistical distribution from the target values of patients whose malocclusion was treated using ready-made orthodontic brackets.

Meanwhile, according to the customized ready-made orthodontic bracket 100 of an embodiment of the present invention, the teeth of the upper jaw are divided into central incisor (U1), lateral incisor (U2), canine (U3), and premolar (first premolar (U4) and second premolar (U5). )) and first molar (U6), and all teeth of the lower jaw are grouped into four incisors (central incisor (L1) and lateral incisor (L2)), canine (L3), first premolar (L4), and second premolar (L5). and first molars (L6). The maxillary second molar (U7), maxillary third molar (U8), mandibular second molar (L7), and mandibular third molar (L8) were excluded from measurement, but are not limited thereto. In addition, maxillary central incisor (U1), maxillary lateral incisor (U2), maxillary canine (U3), maxillary premolar (U4), maxillary first molar (U5), mandibular 4 incisors (L1, L2), mandibular canine (L3), mandible It may include only one or more of the first premolar (L4), the lower second premolar (L5), and the lower first molar (L6).

That is, according to one embodiment of the present invention, the upper central incisor (U1), the upper lateral incisor (U2), the upper canine (U3), the upper premolar (U4), the upper first molar (U5), and the lower 4 incisors (L1, L2) ), parameters of the customized off-the-shelf orthodontic bracket (100) for each target tooth from the statistical distribution of the mandibular canine (L3), mandibular first premolar (L4), mandibular second premolar (L5) and mandibular first molar (L6) can be decided.

In one embodiment, the statistical distribution for each target value is divided into a plurality of statistical groups, and the parameters of the custom-made correction bracket 100 can be determined in each statistical group. At this time, the statistical distribution of each target value can typically be divided into N statistical groups (N is a natural number and can typically be a number from 2 to 9), and accordingly, N customized off-the-shelf corrections are required for each target value. Bracket 100 may be determined.

That is, the parameters of the custom-made correction bracket 100 are determined based on the statistical group to which the target value belongs among a plurality of statistical groups obtained from the statistical distribution of a plurality of target values.

In one embodiment, a plurality of statistical groups may be defined to cover more than 60% of the statistical distribution of each target value. Preferably, a plurality of statistical groups may be defined to cover more than 90% of the statistical distribution of each target value. Here, a plurality of statistical groups may be defined to be continuous with each other, but this is not limited to this, and adjacent statistical groups may overlap at the boundaries.

In addition, it is sufficient that the representative value of each statistical group is a value that falls within the relevant statistical group, such as the median, average, or mode.

Figure 7 relates to custom-made orthodontic brackets 100 having different torque angles. The custom-made orthodontic bracket 100 according to an embodiment of the present invention may be formed to have a torque angle determined from a statistical group of statistical distributions of angles of target teeth. Here, parameters other than the torque angle (angulation, rotation offset, in-out, etc.) may be fixed to predetermined values.

For example, from four statistical groups that cover more than 90% of the statistical distribution of the angles of the target teeth, = -5.8°, = 1.8°, = 9.4° and When the torque angle of = 17.0° is determined, as shown in FIG. 7, the base portion 110 and the body portion 120 of the custom-made orthodontic bracket 100 are , , and It can be arranged to form a torque angle of.

Figure 8 relates to custom-made orthodontic brackets 100 having different angles. The customized ready-made orthodontic bracket 100 according to an embodiment of the present invention may be formed to have an angle determined from a statistical group of the statistical distribution of the angle of the target tooth. Here, parameters other than the angle (torque angle, rotation) offset, in-out, etc.) can be fixed to a predetermined value.

For example, from four statistical groups that cover more than 90% of the statistical distribution of the angles of the target teeth, = 0°, = 2°, = 4° and When the angle of = 6° is determined, as shown in FIG. 8, the base portion 110 and the body portion 120 of the custom-made orthodontic bracket 100 are , , and It can be arranged to form an angle of.

Figure 9 relates to custom-made orthodontic brackets 100 having different rotation offsets. The custom-made orthodontic bracket 100 according to an embodiment of the present invention may be formed to have a rotation offset determined from a statistical group of the statistical distribution of the angle of the target tooth. Here, parameters other than the rotation offset (torque angle, angle, in-out, etc.) may be fixed to a predetermined value.

For example, from four statistical groups that cover more than 90% of the statistical distribution of the angles of the target teeth, = 0°, = 2°, = 4° and When the rotation offset of = 6° is determined, as shown in FIG. 9, the base portion 110 and the body portion 120 of the custom-made orthodontic bracket 100 are , , and It can be arranged to form a rotation offset of .

Figure 10 relates to a customized off-the-shelf orthodontic bracket 100 with different in-outs. The customized ready-made orthodontic bracket 100 according to an embodiment of the present invention may be formed to have an in-out determined from a statistical group of the statistical distribution of the alignment angle of the target tooth with the adjacent target tooth. Here, parameters other than in-out (torque angle, angle, rotation offset, etc.) may be fixed to predetermined values.

For example, from the four statistical groups that cover more than 90% of the statistical distribution of the alignment angle of the target tooth with the adjacent target tooth, = 0mm, = 0.2mm, = 0.4mm and When the in-out of = 0.6mm is determined, as shown in FIG. 10, the base portion 110 and the body portion 120 of the custom-made orthodontic bracket 100 are , , and It can be arranged to form an in-out of.

In this way, if the parameters of the customized off-the-shelf correction bracket 100 are determined from a plurality of statistical groups covering more than 90% of the statistical distribution of each target value, the effect of the customized correction bracket can be expected even though it is an off-the-shelf correction bracket.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as single may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

100 custom off-the-shelf orthodontic brackets
110 base part
120 body part
130 clip part

Claims (5)

In custom-made orthodontic brackets,
A base portion on one side of which is attached to the target tooth; and
a body portion that protrudes from the other side of the base portion and has a slot into which a correction wire is inserted; Including,
The parameters of the customized off-the-shelf correction bracket are determined based on the statistical group to which the target value belongs among a plurality of statistical groups obtained from the statistical distribution of a plurality of target values,
A custom, off-the-shelf orthodontic bracket where the parameters are one or more of torque angle, angle, rotation offset, and in-out. According to claim 1,
The tooth type of the target tooth includes at least one of the maxillary central incisors, maxillary lateral incisors, maxillary canines, maxillary premolars, maxillary first molars, mandibular 4 incisors, mandibular canines, mandibular first premolars, mandibular second premolars, and mandibular first molars. , custom-made, off-the-shelf orthodontic brackets. According to claim 1,
The statistical distribution is for the target teeth of a patient corrected with an off-the-shelf orthodontic bracket, a customized off-the-shelf orthodontic bracket. According to claim 3,
The plurality of statistical groups are continuous with each other and are defined to cover more than 90% of the statistical distribution. According to claim 4,
A customized, ready-made correction bracket, wherein the torque angle is the median of one statistical group among the plurality of statistical groups.

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