KR20080094279A - A structure for use in dentistry and the production method of it - Google Patents

Abstract

A structure for use in dentistry and a production method thereof are provided to enable an operator to perform an improved medical operation by a function of reproducing a human's real temporo-mandibular joint activity and a digital articulator with a simplified structure. A structure for use in dentistry includes: a first body part(100) for maxillary teeth; a second body part for mandibular teeth; a first marker part(150) and a second marker part(250) respectively formed on the outsides of the first and second body parts. The first and second body parts are made of resin. The first and second body parts are formed so that an occlusion surface of the maxillary teeth and the mandibular teeth is opened.

Description

A STRUCTURE FOR USE IN DENTISTRY AND THE PRODUCTION METHOD OF IT}

1 is a perspective view of a dental structure according to an embodiment of the present invention.

2 is a perspective view of a dental structure according to another embodiment of the present invention.

3 is a view showing a state in which the dental structure according to an embodiment of the present invention is mounted on the maxillary tooth model and the mandibular tooth model, respectively.

<Explanation of symbols for the main parts of the drawings>

100, 300 ... first body part, 200, 400 ... second body part,

150 ... first marker portion, 250 ... second marker portion

The present invention relates to a dental structure and a method for manufacturing a dental structure, and more particularly, to allow the motion capture of the maxillary and mandibular to allow for the creation of oral prostheses and the like to satisfy the optimal occlusal state. It is about.

Teeth have a structure in which the upper and lower teeth occlude through joint motion of the maxilla and the mandible. However, when the teeth are damaged, this occlusion problem occurs, leading to tooth dysfunction. In this case, the damaged tooth can be corrected by inserting a prosthesis into the existing tooth. In addition, in recent years, the number of people who want to straighten the teeth for the beauty of the teeth is increasing trend.

An articulator is used to check the occlusion state in the process of manufacturing the prosthesis. The articulator is fitted with a tooth model of the subject and artificially induces joint movement of the maxilla and mandible, thereby interlocking well with the existing tooth. It is a device for processing a prosthesis and the like. Accordingly, the articulator includes joints for mounting the maxillary and mandibular models, and is configured to reproduce the maxillary and mandibular positional relationship and mandibular movement in the oral cavity on an orthodontic model outside the oral cavity.

As articulators, articulators of various types are used, but conventional articulators include a maxillary and a mandibular tooth model cast on which a tooth model of a subject is mounted, a connecting member connecting them, and a mounting means for mediating the connecting member. It was structured to include.

However, since the conventional articulators check the occlusal state in a manner that artificially induces the up, down, front, and left and right movements of the maxillary and mandibular tooth casts, it is impossible to reproduce the actual jaw joint movement of a person. There was a problem that can not be carried out.

In addition, the device is very complex, bulky and heavy, difficult to handle, expensive, and requires a very skilled function to induce fine displacement movement. There was a problem that an error according to the expert may occur with respect to the occlusal state.

The present invention has been made to solve the problems as described above, the technical problem to be achieved by the present invention is to provide a dental structure to make oral prostheses and the like that satisfies a more accurate occlusal state.

In particular, by simplifying the structure from the existing articulator while having a function that can reproduce the actual jaw joint movement of a person, it is possible to technically improve medical behavior.

Dental structure according to an embodiment of the present invention for achieving the above technical problem, the first body portion for the maxillary teeth, the second body portion for the lower teeth, and formed on each outside of the first and second body parts And first and second marker portions.

In addition, the first body portion and the second body portion may be formed of a resin.

In addition, the first and second body portion may be configured to have a shape for opening the occlusal surface of the upper and lower teeth.

In addition, the first and second body parts may be formed in a band-like structure surrounding the upper and lower teeth, respectively, so that the occlusal surfaces of the upper and lower teeth are opened.

In addition, the first and second body parts may be provided with first and second cutout parts, respectively.

The apparatus may further include first and second connection mechanisms which connect both ends of the first and second cut portions to each other.

In addition, the first and second markers may have first and second supports having a predetermined length so as to protrude outwardly from the upper lip and the lower lip, respectively, and the first and second supports are respectively attached to the first and second supports. It may comprise a second polygonal plate.

In addition, the first and second markers may have first and second supports having a predetermined length so as to protrude outwardly from the upper lip and the lower lip, respectively, and the first and second supports are respectively attached to the first and second supports. It may comprise a second polyhedron.

In addition, the first support may include a portion having a curved shape bent downward to enter the upper lip, the second support may include a portion having a curved shape curved upward to enter the lower lip. have.

The first and second supports may be formed of a resin including reinforcing fibers.

On the other hand, the first and second markers are first and second support having a predetermined length so as to protrude outwardly of the upper and lower lips, respectively, and a plurality of attached to the end of the first and second support It may include a marker of.

In addition, each of the first and second body parts may include an internal structure and an external structure that may be fixed to the inside and the outside of the tooth, and a connecting member connecting the internal structure and the external structure through the interdental portion of the tooth. can do.

In addition, each of the first and second body parts may be shaped to surround the outside of the tooth.

In addition, the first body portion and the second body portion may be formed of a resin containing a reinforcing fiber.

Dental structure manufacturing method according to an embodiment of the present invention for achieving the above technical problem is the step of applying a separating agent to each of the maxillary tooth model and the mandibular tooth model, wax on each of the maxillary tooth model and the mandibular tooth model Forming a boundary between the upper and lower teeth by applying a resin solution to each of the upper and lower tooth models to which the separating agent is applied, thereby forming a resin pattern for the upper teeth and a resin pattern for the lower teeth, respectively. Removing a portion of the maxillary dental resin pattern and a portion of the mandibular dental resin pattern so that the occlusal surfaces of the dental model are respectively exposed, and cutting the maxillary dental resin pattern and the mandibular dental resin pattern in their height directions, respectively Step, after cutting the maxillary dental resin pattern and the mandibular dental resin pattern, Separating the maxillary dental resin pattern and the maxillary dental resin pattern from the maxillary dental model and the maxillary dental model, respectively, for connecting the both ends of the maxillary dental resin pattern and the maxillary dental resin pattern to each other Forming a connecting mechanism in the maxillary dental resin pattern and the maxillary dental resin pattern, and connecting a marker portion for motion capture to each of the maxillary dental resin pattern and the maxillary dental resin pattern, respectively. .

The method may further include filling the void space with wax if there is a void space formed by the neighboring teeth of the maxillary tooth model and the mandibular tooth model.

In addition, the resin solution may include reinforcing fibers.

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

1 shows a structure of a dental structure according to an embodiment of the present invention.

Dental structure according to an embodiment of the present invention is a structure that can be used to implement a digital articulator.

As shown in FIG. 1, the dental structure according to the embodiment of the present invention includes a first body part 100, a second body part 200, a first marker part 150, and a second marker part 250. ).

The first body portion 100 is formed in accordance with the upper jaw structure of the subject can be worn on the maxillary teeth of the subject, the second body 200 is shaped in accordance with the mandibular tooth structure of the subject It can be formed and worn on the mandibular teeth of the subject.

The first body part 100 and the second body part 200 are formed to be accurately fitted to the upper and lower teeth of the subject, respectively. To this end, the first body part 100 and the second body part 200 may be manufactured using a tooth model that is a model of the maxillary and mandibular tooth models of the subject. 3 illustrates a state in which the first body part 100 is mounted on the maxillary dental model 101 of the subject. Similarly, a state in which the second body part 200 is mounted on the mandibular tooth model 102 of the subject at the lower part of FIG. 3 is illustrated.

The maxillary tooth model 101 and the mandibular tooth model 102 accurately reproduce the oral condition of the subject, and the first and second body parts 100 and 200 are the maxillary tooth model and the mandibular tooth model for more stable wearing. It may be formed to surround at least a portion of the gum portion and the teeth (101, 102). Meanwhile, the first and second body parts 100 and 200 may be formed to cover only a part of the teeth without covering the gums, or may be formed to surround only a part of the gums without covering the teeth.

In the drawing, the first and second body parts 100 and 200 are shown to have a form surrounding the entire maxillary and the mandibular teeth, but when only a part of the teeth exist, the first and second body parts 100 and 200 are present. ) May have a form surrounding only some of the teeth present. In addition, when the operator wears a denture without teeth, the first and second body parts 100 and 200 may have a shape surrounding the denture.

The first and second body parts 100 and 200 may be formed of resin.

In addition, the first and second body parts 100 and 200 may be formed of a resin including reinforcing fibers for high strength function.

As shown in FIG. 3, the first and second body parts 100 and 200 are formed such that the occlusal surfaces of the maxillary and mandibular teeth are opened. The first and second body parts 100 and 200 may occlude the maxillary and the mandibular teeth so that the subject may naturally perform oral activities such as chewing while wearing the first and second body parts 100 and 200. It has a structure that exposes the surface.

As described above, the structure of the first and second body parts 100 and 200 exposing the occlusal surface may be in the form of a band as in the example of FIG. 1. As shown in FIG. 1, the first and second body parts 100 and 200 are cut at their outer sides in the height direction thereof, so that the first and second cut parts 110 and 210 are formed and cut. Connection mechanisms 115 and 215 for connecting both ends are provided. The coupling mechanisms 115 and 215 may be a pair of buttons 216 attached to both ends of the first and second cutouts 110 and 210, and the two buttons 216 may be fixed in a pair. A fixing string 217 or the like. Therefore, the first and second body parts 100 and 200 may be worn in the form of bands on the upper and lower teeth of the subject by using the first and second connection mechanisms 115 and 215.

The first and second marker portions 150 and 250 are tools for motion capture, wherein the first marker portion 150 is on the first body portion 100 and the second marker portion 250 is on the second portion. It is mounted on the body portion 200, respectively.

As shown in FIGS. 1 to 3, the first and second marker parts 150 and 250 may have an outer side of the first and second body parts 100 and 200 to obtain more efficient coordinate values of the exercise data. It can be centrally mounted and has a shape suitable to ensure natural oral activity of the subject.

For example, the first and second marker parts 150 and 250 may include first and second supports 151 and 251, respectively, and the first support 151 may be lowered to allow the upper lip of the subject to enter. It includes a curved curved portion, and the second support 251 includes a curved curved portion that can be curved upward so that the lower lip of the subject.

The first and second supports 151 and 251 may be formed of a resin, or may be formed of a resin including reinforcing fibers to increase strength.

In the case of using a scanner method among motion capturing methods, the first and second marker parts 150 and 250 may have first and second polygon plates 152 and 252 at the ends of the first and second supporters 151 and 251, respectively. ). In addition, the first and second polygonal plates 152 and 252 may be replaced with first and second polyhedrons (not shown). In this embodiment, a triangular polygonal plate is shown. Each image obtained through the scanner method is matched with respect to the polygonal plate (or polyhedron), and successive images form occlusal motion data of the subject.

In addition, when the optical magnetic method is used among the motion capturing methods, the first and second marker parts 150 and 250 may be provided with a plurality of markers 153 and 152 attached to the ends of the first and second supports 151 and 251, respectively. 253). For example, the first and second marker parts 150 and 250 may include three markers 153 and 253, respectively.

On the other hand, according to another embodiment of the present invention, each of the first body portion and the second body portion may have a form separated into two parts. That is, as shown in FIG. 2, the structures of the first and second body parts 300 and 400 exposing the occlusal surface may be internal structures 301 of the first and second body parts 300 and 400, respectively. , 401, and external structures 302 and 402, and connecting members 303 and 403 connecting them, respectively. That is, the first body 300 is divided into an inner structure 301 that can be worn inside the maxillary teeth of the subject and an outer structure 302 that can be worn outside, and a connection member 303 such as a wire. By connecting the two structures (301, 302) by passing through the interdental portion, the first body portion 300 of the detachable structure can be fixed to the teeth of the subject. In addition, the same manner as described above may be applied to the lower teeth.

In addition, the first and second body parts 300 and 400 may be mounted on the maxillary and mandibular teeth of the subject with only the outer structures 302 and 402 without the respective inner structures 301 and 401. It may be.

As in the above-described embodiment, the first and second marker parts 150 and 250 may be attached to the first body part 300 and the second body part 400, respectively.

Next, an example of a method for manufacturing a dental structure according to an embodiment of the present invention will be described.

In each of the maxillary dental model 101 and the mandibular dental model 102 produced by injecting gypsum into impressions obtained according to the subjects of the procedure (see FIG. 3), an appropriate amount of a resin separation agent is used to facilitate separation from the resin. Apply

In addition, each of the maxillary tooth model 101 and the mandibular tooth model 102 makes a boundary with wax. In this case, if a hollow space formed by a caries crown site or neighboring teeth is opened on the model, the wax appears. Fill it with

The resin solution made by mixing fine powder and liquid is coated on each of the maxillary dental model 101 and the mandibular dental model 102 to which the separating agent is applied.

At this time, if you want to make a structure having a high strength function, it is possible to use a resin solution containing a fiber for reinforcement.

When the resin solution is completely cured, a portion of the cured resin pattern is cut out so that the occlusal surfaces of the maxillary dental model 101 and the mandibular dental model 102 are exposed, respectively, so as not to interfere with natural oral activity. .

Next, the outer portions of the upper dental resin pattern and the lower dental resin pattern may be cut in the height direction to form a band-like structure (see FIG. 1). In addition, each end portion of the molar can be cut in its height direction to form a separate structure so that it can be divided and mounted inside and outside of the tooth (see FIG. 2).

The cut region may be used to remove the maxillary dental resin pattern and the maxillary dental resin pattern from the maxillary dental model and the mandibular dental model 101 and 102, respectively.

Next, in the case of the resin pattern formed in the band structure, the connecting mechanisms 115 and 215 for connecting the both ends of the cut each other are attached. 3 shows the protruding button 216 as an embodiment of the coupling mechanism. In the state in which the structure is mounted on the subject's teeth, the projecting button 216 formed in pairs at both ends thereof is wound with elastic fixing straps 217 to fix the structure on the subject's teeth. It becomes possible.

Next, the ends of the supporters 151 and 251 of the marker parts 150 and 250 are attached to the outer center portions of the upper and lower tooth resin patterns and connect the marker parts 150 and 250, respectively.

As described above, according to the present invention, it is possible to perform motion capture of the maxillary and mandible using a dental structure, and to implement a digital articulator based on this, and to obtain more accurate occlusal motion data according to the subject. have.

In addition, by implementing a digital articulator having a simple structure compared to the existing articulator, the occlusal diagnosis process is facilitated, and the operation error according to the articulator manufacturer's or operator's articulation skill and subjective judgment can be further reduced.

Therefore, it is possible to design and manufacture more reliable prostheses and the like using the dental structure according to the present invention.

Claims (17)

First body for maxillary teeth, Second body portion for mandibular teeth, and First and second marker parts formed on each outside of the first and second body parts Dental structure comprising a. In claim 1, Dental structure of the first body portion and the second body portion is formed of a resin. In claim 1, The first and second body portion is a dental structure configured to have a shape that opens the occlusal surface of the upper and lower teeth. In claim 3, And the first and second body parts are formed in a band-like structure surrounding the maxillary and mandibular teeth so that the occlusal surfaces of the maxillary and mandibular teeth are opened. In claim 3, And the first and second body parts include first and second cutout portions, respectively, on the outer side. In claim 5, The dental structure further comprises a first and second connecting mechanism for connecting both ends of the first and second cutting portion to each other. In claim 1, The first and second marker parts First and second supports having predetermined lengths so as to protrude outwardly from the upper and lower lips, respectively, Dental structures comprising first and second polygonal plates attached to the first and second supports, respectively. In claim 1, The first and second marker parts First and second supports having predetermined lengths so as to protrude outwardly from the upper and lower lips, respectively, Dental structures comprising first and second polyhedrons attached to the first and second supports, respectively. In claim 7 or 8, The first support includes a portion having a curved shape bent downward to enter the upper lip, the second support is a dental structure comprising a portion having a curved shape bent upward to enter the lower lip. In claim 7 or 8, And the first and second supports are formed of a resin comprising reinforcing fibers. In claim 1, The first and second marker parts First and second supports having predetermined lengths so as to protrude outwardly from the upper and lower lips, respectively, Dental structure comprising a plurality of markers attached to the ends of the first and second supports. In claim 1, Each of the first and second body parts, Internal and external structures which can be fixed to the inside and outside of the tooth, respectively; Connecting member connecting the internal structure and the external structure through the interdental portion of the tooth Dental structure comprising a. In claim 1, Each of the first and second body parts has a shape surrounding the outside of the tooth. In claim 2, And the first body portion and the second body portion are formed of a resin comprising reinforcing fibers. Applying a separator to each of the maxillary and mandibular tooth models, Creating a boundary with wax on each of the maxillary tooth model and the mandibular tooth model, Applying a resin solution to each of the maxillary tooth model and the mandibular tooth model to which the separating agent is applied to form a maxillary dental resin pattern and a mandibular dental resin pattern, respectively; Removing a portion of the maxillary dental resin pattern and a portion of the maxillary dental resin pattern to expose the occlusal surfaces of the maxillary dental model and the maxillary dental model, respectively; Cutting the maxillary dental resin pattern and the mandibular dental resin pattern in a height direction thereof, After cutting the maxillary dental resin pattern and the maxillary dental resin pattern, separating the maxillary dental resin pattern and the maxillary dental resin pattern from the maxillary tooth model and the mandibular tooth model, respectively; Forming connecting mechanisms for connecting the cut ends of the maxillary dental resin pattern and the maxillary dental resin pattern to the maxillary dental resin pattern and the maxillary dental resin pattern, respectively; and Connecting a marker portion for motion capture to each of the maxillary dental resin pattern and the maxillary dental resin pattern Dental structure manufacturing method comprising a. The method of claim 15, If there is an empty space formed by the neighboring teeth of the maxillary tooth model and the mandibular tooth model, further comprising the step of filling the void space with wax. The method of claim 15, The resin solution is a dental structure manufacturing method comprising a reinforcing fiber.

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