KR20080026679A - Device for dental prosthesis - Google Patents

Abstract

A dental prosthesis is provided to secure a treatment space to make the surgical operation easier, and to prevent the exterior of the teeth from being deteriorated by hiding a fixing member. A dental prosthesis fixes an artificial tooth in a bridge form using neighboring natural teeth. A bracket(134) having first coupling portions on both sides is inserted into the artificial tooth(130). At least one or more coupling recesses are formed on the inner side of the natural tooth. A plate(142) that has a form corresponding to the shape of the inner surface of the natural tooth is installed on one side of a fixing member. A second coupling portion that is coupled with the first coupling portion is formed on the other side of a fixing member(150), which is inlaid on the inner surface of the natural tooth.

Description

Dental prosthesis {Device for dental prosthesis}

1 is a schematic cross-sectional view showing the configuration of a dental prosthesis according to an embodiment of the prior art.

Figure 2 is an exploded perspective view showing the configuration of a dental prosthesis according to another embodiment of the prior art.

Figure 3 is a perspective view showing the installation state of the dental prosthesis according to the present invention.

Figure 4 is an exploded perspective view showing a configuration in which the fixing member is assembled in the dental prosthesis according to the present invention.

5 is an exploded perspective view showing a configuration in which an artificial tooth is assembled in the dental prosthesis according to the present invention.

6 is a cross-sectional view showing a configuration of a dental prosthesis according to the present invention.

7 is an exploded perspective view illustrating an enlarged configuration of a dental prosthesis according to the present invention.

8 is a perspective view showing the configuration of the coupling protrusion in the dental prosthesis according to the present invention.

** Description of Codes for Major Configurations of Drawings **

100: dental prostheses 110, 120: natural teeth

112, 122: coupling groove 130: artificial tooth

132: panic 134: bracket

136, 138: slide groove 140, 150: fixing member

142, 152: plates 144, 154: slide projection

146, 156: engaging protrusion

The present invention relates to a dental prosthesis, and more particularly, the present invention is suitable for molar teeth with a wide area of teeth in the case of a conventional prosthesis to bridge the artificial tooth by inlaying the fixing member to both sides of the damaged tooth, but the area of the tooth is narrow It is not suitable for incisors or canines, and especially for incisors that are easily exposed when the mouth is open, there is a problem in the installation of the side engagement type fixing member, and the dental prosthesis that bridges the artificial tooth using the inner side of the tooth. It is about.

In general, teeth have a pronounced function or aesthetic function in addition to chewing function to crush food. When these teeth are lost, problems such as inadequate intake of food may cause nutritional problems, or the surrounding teeth of the lost teeth may be inclined, resulting in inconsistent occlusal teeth.

Since human teeth are no longer new teeth after teeth are replaced by permanent teeth, there is no known treatment to remove the teeth on both sides of the missing area in proper shape and connect the missing teeth to dentures. It is.

One such conventional treatment is shown in FIG. 1. In the treatment method shown in FIG. 1, the teeth on both sides of the lost part are abutment 2, and the occlusal surface and the peripheral surface of both abutment 2 are removed by about 1 mm to 3 mm, and then a model is acquired using an impression material. A prosthesis 4 (also known as a crown bridge) is produced by a technician, and a bridge system is used to cover the abutment 2 from which the prosthesis 4 is removed.

Although this bridge-type treatment is a simple and inexpensive treatment method, a large portion of the normal abutment (2) on which the prosthesis (4) is covered must be largely removed, causing considerable pain to the patient during the procedure, and the abutment of the abutment (2) was normal. When processing, there is a problem that damages the nerve of the tooth or shortens the life. In addition, if the prosthesis 4 is covered with a long time use, there is a problem that the gap between the prosthesis and the preparation tooth is spread to the cavities.

In order to solve the problem of the conventional treatment method, an implant-type treatment method in which a screw is planted in the jawbone and the denture is fixed to the screw has been proposed.

However, such an implant treatment method requires a long period of procedure and a high cost of the procedure, and also has a problem of planting a screw inside the jawbone to avoid tissues such as nerves and blood vessels.

Recently, in order to solve the problems of the bridge treatment method and the implant treatment method, a treatment method as shown in Figure 2 has been proposed.

The treatment of the treatment shown in Figure 2 is carried out in the following procedure. First, a plurality of holes 24 are formed in one surface of both abutment 22 with both teeth as the abutment, and a pin 32 is formed at one side to be inserted into and fixed to the hole 24. On the side, a fixing member 40 having a fitting protrusion 34 having a cross-section having an approximately "I" shape is manufactured, and the pin 32 of the fixing member 40 is inserted into the hole 24 of the preparation tooth 22. The fixing member 40 is attached to the abutment 22 by fixing. Then, the treatment is completed by inserting and fixing the denture 50 in which the groove 42 corresponding to the cross-sectional shape of the fitting protrusion 34 of the fixing member 40 is formed.

However, the dental prosthesis of the prior art as described above has the following problems.

The conventional treatment method shown in FIG. 2 has a problem in that the treatment space is narrow and the procedure of the operator is inconvenient because the hole 24 must be formed on the opposing surface of both teeth of the lost portion. Therefore, there is a problem that the fixing member 40 is detached from the abutment 22 during use due to incomplete procedure.

In addition, according to the conventional dental prosthesis, since the molar teeth are the main substitute, the cross-sectional area is wide and thus suitable for installing the fixing member, but it is difficult to install the fixing member in the case of the incisor or fang that cuts or tears food. There is an inadequate problem.

In particular, when the fixing member is installed in the case of the incisor teeth, the fixing member is exposed to the side, which may damage the aesthetics of the teeth.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to provide a dental prosthesis to secure the treatment space to facilitate the procedure.

Another object of the present invention is to provide a dental prosthesis that the fixing member is concealed so as not to harm the aesthetics of the tooth.

Another object of the present invention is to provide a dental prosthesis that can be installed in the incisor or fang that is not suitable for installing the prosthesis.

It is another object of the present invention to provide a dental prosthesis in which the prosthesis is not randomly detached from the preparation tooth or the fixing member.

According to a feature of the present invention for achieving the object as described above, the present invention is a dental prosthesis for fixing the artificial tooth in the form of a bridge using natural teeth adjacent to both sides to restore the damaged incisor, the artificial Brackets having first coupling portions are inserted into both sides of the tooth, and at least one coupling groove is formed on the oral cavity inner side of the natural tooth, and a plate corresponding to the oral cavity inner shape of the natural tooth is formed on one side thereof. Is provided, the other side is configured to include a fixing member which is inlayed on the inner side of the oral cavity side of the natural teeth by being provided with a second coupling portion coupled to the first coupling portion.

The first coupling portion is a slide groove, and the second coupling portion is a slide protrusion.

The plate which is in contact with the natural tooth is formed with a protrusion protrusion is pressed into the coupling groove of the natural tooth.

The slide protrusion is fixed to the slide groove by an adhesive.

In the dental prosthesis for fixing the artificial tooth in the form of a bridge using a natural tooth that is healthy on both sides to replace the damaged tooth, the fixing member is inlayed on the natural tooth to bridge the artificial tooth to the natural tooth, The fixing member is installed on the inner side of the oral cavity of the natural tooth so that the fixing member is hidden when viewed from the front of the tooth.

The artificial tooth is composed of a panic forming the outer shape of the tooth and a bracket coupled to the fixing member.

The panic is molded from dental resin plastic to exhibit the same shape and color as the natural teeth, and the bracket is molded into a metal frame, where the bracket is inserted into the panic and cast.

The bracket is formed with slide grooves on both sides.

The slide groove is narrower toward the opposite side of the root.

The fixing member is composed of a plate-like plate corresponding to the inner side shape of the oral cavity side of the natural tooth, and a slide protrusion fastened to the slide groove of the bracket.

At least one coupling protrusion for fastening to the natural tooth is formed on a plate facing the oral cavity inner surface of the natural tooth.

The oral cavity inner side surface of the natural tooth is formed with a coupling groove into which the coupling protrusion is inserted as many as the coupling protrusion.

The engaging protrusion maintains an inclination angle of about 30 ° to 60 ° with respect to the plate so as not to touch the nerve in the center of the tooth.

The slide protrusion is coupled to the slide groove by pressing, it is fixed by an adhesive.

The artificial tooth is bridged between the incisors that carry and cut the food.

The artificial tooth is bridged between the incisor that bites and cuts the food and the canine that tears the food apart.

According to the dental prosthesis according to the present invention having such a configuration there is an advantage that the treatment space is secured and the procedure time is shortened.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the dental prosthesis according to the present invention having the configuration as described above will be described in detail.

Tooth teeth are divided into incisors that carry and cut food, fangs that tear food finely, and molars that crush food. In the present invention, the prosthesis applicable to the incisor or molar will be described.

As shown in FIGS. 3 to 7, the dental prosthesis 100 of the present invention fixes the artificial tooth 130 in the form of a bridge by using natural teeth 110 and 120 that are installed on both sides of the tooth where the tooth is lost. As to the configuration, the natural teeth (110, 120) is inlay fixing member (140, 150) to bridge the artificial tooth (130). In particular, the fixing member 140, 150 is characterized in that the inlay on the inner side of the oral cavity of the natural teeth (110, 120).

The artificial tooth 130 is composed of a panic (pontic) 132 constituting the appearance of the tooth and a bracket 134 coupled to the fixing members (140, 150). The panic 132 is cast and molded with a dental resin plastic in order to exhibit the same shape and color tone as the natural teeth 110 and 120, and the bracket 134 is made of a metal frame. The bracket 134 is inserted prior to casting the panic 132.

Slide grooves 136 and 138 are formed on both sides of the bracket 134, and the width thereof becomes narrower toward the upper side of the artificial tooth 130, that is, the opposite side of the root.

The fixing members 140 and 150 may include plates 142 and 152 having a shape corresponding to the oral cavity inner side, that is, the rear side, of the natural teeth 110 and 120, and the slide grooves 136 and 138 of the bracket 134. It is composed of slide projections (144, 154) fastened to the), one surface of the plate (142, 152) is formed with a plurality of coupling protrusions (146, 156) for fastening to the natural teeth (110, 120). The slide protrusions 144 and 154 and the slide grooves 136 and 138 may be interchanged. In this case, the slide protrusions 144 and 154 are fixed to the slide grooves 136 and 138 by an adhesive or the like.

On the other hand, the natural teeth (110, 120) are formed with coupling grooves 112, 122 into which the coupling protrusions (146, 156) can be inserted. Two or more coupling grooves 112 and 122 are preferable, and are drilled to a proper depth in consideration of the length of the coupling protrusions 146 and 156.

The coupling grooves 112 and 122 are preferably formed to be inclined so as to pass through the stratum corneum layer or soft dentin layer as much as possible without touching the pulp layer in the inner center of the tooth. As shown, the coupling protrusions 146 and 156 are also formed to be inclined at a predetermined angle with respect to the plate. Preferably, the coupling protrusions 146 and 156 may maintain an inclination angle of about 30 ° to 60 ° in both up and down.

Hereinafter, the operation of the dental prosthesis according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

Drill at least one or more coupling grooves (112, 122) in the natural teeth (110, 120) located on both sides of the damaged tooth using a drill or the like. At this time, care should be taken not to touch the nerve inside the natural teeth (110, 120).

As described above, the coupling grooves 112 and 122 are drilled, and then a model is acquired using the impression material, and then the fixing members 140 and 150 corresponding to the shape of the inner side of the oral cavity of the natural teeth 110 and 120 are molded. On the other hand, by inserting the bracket 134 with the slide grooves (136, 138) on both sides to produce an artificial tooth 130, the same shape and color tone as the natural teeth (110, 120).

First, as shown in FIG. 4, the fixing members 140 and 150 are installed on the natural teeth 110 and 120, and then the artificial teeth 130 are fixed to the fixing members 140 and 150 as shown in FIG. 5. When pressed in and fixed to the slide protrusions 144 and 154 and the slide grooves 136 and 138 slide to each other, and fixed by an adhesive or the like, the artificial tooth 130 is randomly separated from the natural teeth (110. 120) Will not be.

As described above, it can be seen that the present invention has a technical concept that the fixing member installed on the natural tooth is inlayed on the inner side of the oral cavity of the natural tooth to bridge the artificial tooth. Within the scope of the basic technical idea of the present invention, many other modifications will be possible to those skilled in the art.

As described above, according to the configuration of the present invention, the following effects can be expected.

First, by installing a fixing member using the oral side inner surface of the tooth, it is possible to secure a treatment space has the effect of improving the convenience of the consumer easy to operate.

Second, there is no fear that the fixing member is concealed on the medial side of the oral cavity to harm the aesthetics of the teeth.

Third, irrespective of the tooth structure on both sides of the damaged tooth, the procedure can be shortened and the procedure time can be shortened, and the effect of preventing re-treatment is expected.

Claims (16)

In the dental prosthesis for fixing the artificial tooth in the form of a bridge using natural teeth adjacent to both sides to restore the damaged front teeth, Brackets are provided with a first coupling portion on both sides of the artificial tooth, At least one coupling groove is formed on the inner side of the oral cavity of the natural tooth, One side is provided with a plate corresponding to the shape of the inner side of the oral cavity of the natural teeth, the other side is provided with a second engaging portion coupled to the first coupling portion, including a fixing member inlayed on the inner side of the oral cavity of the natural tooth Dental prosthesis, characterized in that configured. The method of claim 1, The first coupling portion is a slide groove, the second coupling portion is a dental prosthesis, characterized in that the slide projection. The method of claim 2, Dental prosthesis, characterized in that the plate is in contact with the natural teeth protruding coupling protrusions are pressed into the coupling groove of the natural teeth. The method of claim 2 or 3, The slide protrusion is a dental prosthesis, characterized in that fixed to the slide groove by an adhesive. In the dental prosthesis for fixing the artificial tooth in the form of a bridge using natural teeth that are healthy on both sides to replace the damaged teeth, The fixing member is inlayed on the natural tooth to bridge the artificial tooth to the natural tooth, and the fixing member is installed on the inner side of the oral cavity of the natural tooth so that the fixing member is concealed when viewed from the front of the tooth. Dental prosthesis characterized in that. The method of claim 5, wherein The artificial tooth, The panic which forms the appearance of the tooth, Dental prosthesis, characterized in that consisting of a bracket coupled to the fixing member. The method of claim 6, The panic is molded into a dental resin plastic to exhibit the same shape and color as the natural tooth, and the bracket is molded into a metal frame, and the bracket is inserted into the panic and is cast. The method of claim 6, The bracket is a dental prosthesis, characterized in that the slide groove is molded on both sides. The method of claim 8, The slide groove is a dental prosthesis, characterized in that the width becomes narrower toward the opposite side of the root. The method of claim 8, The fixing member, Plate-shaped plate corresponding to the shape of the oral cavity inner side surface of the natural tooth, Dental prosthesis, characterized in that consisting of a slide projection is fastened to the slide groove of the bracket. The method of claim 10, Dental prosthesis, characterized in that at least one engaging protrusion for fastening to the natural tooth is formed on the plate facing the oral side inner surface of the natural tooth. The method of claim 11, Dental prosthesis, characterized in that the coupling groove into which the coupling projection is inserted in the inner side of the oral cavity of the natural tooth is formed by the number of the coupling projection. The method of claim 11, The coupling protrusion is a dental prosthesis, characterized in that to maintain the inclination angle of 30 ° to 60 ° with respect to the plate so as not to touch the nerve in the center of the tooth. The method of claim 8, The slide protrusion is pressed into the slide groove is coupled, the dental prosthesis, characterized in that fixed by an adhesive. The method according to any one of claims 5 to 14, The artificial tooth is a dental prosthesis, characterized in that the bridge between the front teeth to carry and cut food. The method according to any one of claims 5 to 14, The artificial tooth is a dental prosthesis, characterized in that the bridge between the front teeth and carry the food to cut and chop the chop.

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