JP2011015985A - Dental prosthesis and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dental prosthesis and a manufacturing method of the same in which a broken tooth is remedied without cutting a cheek side surface and a tongue side surface and a fixing prosthesis is manufactured to cover therewith a swinging tooth and the cheek side surface and the tongue side surface of an adjacent tooth, a non-functioning biting head and a biting surface which does not come into contact with an opposed tooth and adhere to the swinging tooth and the adjacent tooth so as to recover the function of the tooth and extend the life.SOLUTION: The dental prosthesis is divided into an integral cover part only including a cheek side cover part and a tongue side cover part and a separate type cover part in which the cheek side cover part and the tongue side cover part are formed with a biting form or an abutting form. To manufacture the dental prosthesis, a present model is copied. Under a state that the copied model is waxed up, a sprue is attached thereto, then, buried, burnt out and cast to obtain a precise prosthesis.

Description

  The present invention relates to a dental prosthesis for recovering the function of a damaged tooth and a method for manufacturing the same, and more particularly, contact between a damaged tooth and an adjacent tooth when an occlusal surface is deleted during nerve treatment. By removing only the face, it is possible to repair damaged teeth without removing the buccal and lingual sides, and there is no special removal even when repairing occlusal surfaces that do not come into contact with the opposing teeth and broken teeth. This model relates to a prosthesis capable of repairing damaged teeth. In order to manufacture this prosthesis, this model is duplicated, and a sprue is attached with the waxing up on the duplicated model. In addition, the present invention relates to a manufacturing method for obtaining a prosthesis by performing burying, burnout, and casting.

  Until now, generally, if the occlusal surface is removed during nerve treatment or if the tooth breaks down, not only the contact surface of the tooth but also the buccal and lingual sides are undercut to restore the function of the tooth. The tooth was deleted so that there was no (undercut) part, and the prosthesis was restored on this model without the replication model. In particular, in the case of a tooth having a shake, a groove was formed mainly on the occlusal surface of the tooth, and a wire was placed in the groove to fill a resin, amalgam or other filler. However, in this case, the occlusal surface is considerably deleted, and when the tooth is shaken heavily, the filling material is easily dropped, and a sensitive reaction is expressed after the operation. In addition, the amount of tooth removal was relatively large, and dental caries was frequently caused by cement being melted away after prosthetic restoration due to inappropriate deletion, but according to the present invention, there is an undercut portion. Even in this case, since it can be attached to the tooth by using metal elasticity and protrusions, there is no deletion of the tooth on the buccal side and the lingual side.

  The present invention reduces tooth sway through adhesion between adjacent teeth that are swayed, or between a tooth that is swayed and a healthy tooth that is adjacent to the tooth, thereby extending the life of the tooth and restoring its function. It is possible to recover damaged teeth without damaging the tooth structure. In order to achieve the technical problem, the prosthesis is fixed and the maintenance power of the prosthesis is maintained without deleting the buccal side and the lingual side part or minimizing the deletion of the buccal side and the lingual side part. Should protect the weakened tooth quality.

  By removing only the damaged tooth part of the enamel, it is possible to repair the damaged tooth, prolonging the life of the tooth with severe shaking and restoring the function, preventing soft tissue damage that may occur when the tooth is removed, and preventing anesthesia. Necessary tooth loss can be minimized by significantly reducing patient care time and preventing the cement from being melted away by improper tooth removal.

It is the isolation | separation perspective view which showed the mounting state of the dental prosthesis of this invention. It is a perspective view of the separation type lid part by the present invention. It is the figure which showed the meshing form of the separation-type cover part by this invention. It is the side view which showed the deletion site | part of the tooth | gear in the case where the conventional dental prosthesis is applied. It is the side view which showed the deletion site | part of the tooth for mounting | wearing with the dental prosthesis of this invention. It is the side view which compared the deletion site | part for mounting the conventional dental prosthesis, and the deletion site | part for mounting the dental prosthesis of this invention. It is the perspective view which showed the state in which the lingual side cover site | part covered the maximum ridge of the cheek side. It is the perspective view which showed the state in which the lingual side cover part covered the direct lower side of the cheek side ridge. It is the perspective view which showed the state in which the lingual side cover part covered the cheek side margin. It is the perspective view which showed the state which the lingual side and the cheek side cover part covered the lingual side and the cheek side margin. It is the perspective view which showed the groove | channel form of the lingual side and the buccal side cover part. It is the side view which showed the mounting state of the dental prosthesis for fixation of this invention. It is the side view and top view which showed the protrusion form adhering to the dental prosthesis for fixation, and the recessed groove | channel form formed in the tooth. It is the side view and top view which showed the protrusion form adhering to the dental prosthesis for fixation, and the recessed groove | channel form formed in the tooth. It is the side view and top view which showed the protrusion form adhering to the dental prosthesis for fixation, and the recessed groove | channel form formed in the tooth. It is the side view and top view which showed the protrusion form adhering to the dental prosthesis for fixation, and the recessed groove | channel form formed in the tooth.

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

  First, when the occlusal surface is deleted at the time of nerve treatment, the piece crown, which is the prosthesis of the present invention, deletes only the contact surface between the damaged tooth and the adjacent tooth 8, so that the buccal side and the lingual side are removed. Damaged teeth can be repaired without removal (Fig. 5), and it is devised to be able to repair without occlusion of the occlusal surface that does not come into contact with the opposing teeth and even when a broken tooth is repaired. It is a thing. The separation-type piece crown (FIG. 2) is composed of a buccal side cover part 1 and a lingual side cover part 2, but the buccal side cover part 1 and the lingual side cover part 2 are engaged with each other (FIG. 3). It is also possible to repair in the contact form. At this time, by giving a predetermined angle (FIG. 3) to the meshing part or the contact part of the cheek-side cover part 1 and the tongue-side cover part 2, a tighter adhesion degree is obtained by using the ductility of the metal during mastication. The cement was prevented from being melted away. At this time, the meshing part or the contact part could be in the form of a slope, V-shape or U-shape.

  As will be described later, the buccal side cover part 1 and the lingual side cover part 2 are manufactured according to the original shape of the teeth on the buccal side and the lingual side, so that they are maintained by the undercut portions of the lingual side part and the buccal side part. Power increased.

  Since the integrated piece crown is composed only of the lingual cover (FIGS. 7, 8, 9, 10, and 11), the lingual cover covers the ridges on the lingual, occlusal and cheek sides. By covering (FIG. 7) or forming the groove 4 at the maximum bulge portion and increasing the elasticity of the metal, the area below the maximal bulge portion (FIG. 8) or the margin can be covered (FIG. 9).

  Further, since the integral piece crown is composed of only the buccal side cover (FIGS. 7, 8, 9, 10 and 11), the buccal side cover is the largest ridge on the cheek side, the occlusal surface and the tongue side. (FIG. 7), or by forming the groove 4 in the bulging region and increasing the elasticity of the metal, the lower portion (FIG. 8) or the margin (FIG. 9) of the largest bulging portion can be covered. .

  The buccal and lingual lids are replicated after the model has been replicated, and then a sprue is attached with the waxing up on the replicated model, embedded, burnout, casting ( After performing casting and polishing, it was manufactured by the method of attaching to this model using the elasticity of metal. By manufacturing in this way, the damaged part of the tooth can be repaired without deleting the cheek side and the tongue side surface (FIG. 5).

  Next, an effective prosthetic process of the rocking tooth will be described with reference to FIGS. The crown bridge according to the present invention can effectively restore the oscillating tooth using the adjacent tooth of the oscillating tooth. That is, the fixing prosthesis 1 'is integrally attached to the cheek side surface or the lingual side surface, and the tooth is fixed by using metal rigidity. In order to fix the teeth mainly using the occlusal surface that does not come into contact with the functional cusp and the opposing teeth, the method of fixing mainly on the buccal side in the upper jaw and mainly fixing on the lingual side in the lower jaw is selected (Fig. 12). At this time, if there is an undercut part, attach the sprue with waxing up on the replicated model, then bury, burn out, and cast using metal elasticity to attach the undercut part. If there is not, waxing up is performed on this model, and after separating the wax pattern, a sprue is attached to the wax pattern, and buried, burned out, and casted. Then, in order to reduce tooth sway and fix the tooth securely, the upper jaw is formed with a concave groove 3 ′ (including or not including the occlusal surface) on the buccal side, and the lingual side (the occlusal surface) in the lower jaw. (Including or not) is formed in the recessed groove 3 '. At this time, the deletion of the recessed groove 3 ′ is performed within a range where the patient does not feel a special refusal. As shown in FIGS. 13 to 16, the dental prosthesis of the present invention includes a fixing prosthesis 1 ′, a protrusion 2 ′ formed on the fixing prosthesis 1 ′, and a recessed groove formed on a tooth. In this case, rectangular, U-shaped, V-shaped, dot-shaped, hole-shaped, scratch-shaped 21 ', 22', 23 ', etc. can be applied to the recessed groove 3'. .

Claims (5)

  The lingual capping part completely covers the lingual side of the tooth, the occlusal surface, and the area of the largest ridge on the buccal side, or forms a groove (4) in the side of the buccal side, so that it is directly under the ridge (12) or a dental prosthesis that covers and extends to the buccal margin (margin), the dental prosthesis without metal occlusion and removal of the buccal and lingual sides of the teeth A dental prosthesis characterized in that it can be attached to a dental prosthesis.   The buccal side covering part completely covers the buccal side surface of the tooth and the portion of the occlusal surface and the lingual side of the tongue, or by forming a groove (4) on the side of the lingual side, A dental prosthesis that covers and extends to the lingual margin, and the dental prosthesis can be mounted without removing the buccal and lingual sides of the teeth using metal elasticity. A dental prosthesis characterized by   In a dental prosthesis that covers the lingual side, occlusal side, and buccal side of a tooth, the maximum ridges on one side of the lingual side and buccal side of the tooth are covered in an exposed form, and metal elasticity is used A dental prosthesis, which can be mounted without deleting the buccal side and the lingual side of the tooth.   4. The dental prosthesis according to claim 3, wherein the one surface on which the maximum ridge is exposed extends to the maximum ridge of the tooth to the maximum and is covered.   One surface where the maximum ridge is exposed is formed by forming a groove (4) to expose the maximum ridge, and extends only below or below the maximum ridge to be covered. The dental prosthesis according to claim 3.

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