JP4155762B2 - Denture with denture - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a denture having an artificial tooth fixed to a denture base.
[0002]
[Prior art]
A denture prosthesis manufactured for a patient who lacks all or part of a natural tooth is composed of a denture base and a portion called an artificial tooth fixed to the denture base. The denture base portion is a portion corresponding to natural peeling, and is usually made of a synthetic resin such as acrylic resin or polycarbonate. Although there is a metal plate that is part of a floor called a metal floor, a synthetic resin is used for the purpose of embedding and fixing the artificial tooth at the portion of the ridge that is in contact with the artificial tooth. The denture base is the recovery of lost alveolar bone and gingiva, and is physiologically, functionally and aesthetically determined.
[0003]
[Problems to be solved by the invention]
The denture base and the artificial tooth are manufactured in a shape that mimics the shape of a natural gingiva from the physiological and aesthetic viewpoints on the outside and inside of the boundary portion. By the way, in this specification, “outside” of the denture base and artificial teeth means the lip side or the cheek side in the upper jaw and the lower jaw, and “inside” means the palate side in the upper jaw. In this case, it means the lingual side. It is necessary to pay attention to the aesthetic aspect of the denture base and artificial teeth, particularly on the outside. For this reason, a recess is formed at the boundary between the artificial tooth and the denture base, and a recess is also formed between adjacent artificial teeth. This shape is preferred because the appearance is natural gingiva and tooth shape. However, from the viewpoint of maintaining the denture, there is a drawback that food residues and the like are easily accumulated in the boundary concave portion formed at the boundary between the artificial tooth and the denture base, and cleaning is troublesome. Brushing your teeth carefully can reduce the residue on the boundary recesses. However, plastics frequently used for molding artificial teeth are more susceptible to wear by tooth brushing than natural tooth enamel.
[0004]
It is also possible to fill the denture base with a synthetic resin used for the denture base and mold the denture base into a shape that does not have a recess. However, the denture with this shape has a different shape from the natural gingiva and has a strange appearance. This is because the synthetic resin for molding the denture base is colored gingival color.
[0005]
The present invention has been developed for the purpose of solving this drawback. An important object of the present invention is to effectively prevent dirt from accumulating in the boundary concave portion formed at the boundary between the artificial tooth and the denture base, thereby facilitating the cleaning of this portion, and the appearance of natural gingiva and natural teeth. An object of the present invention is to provide a denture with the same shape and no discomfort.
[0006]
[Means for Solving the Problems]
The denture of the present invention is a denture formed by fixing a plurality of artificial teeth 1 to a denture base 2 and has a transparent coating 4 with a predetermined width along the boundary portion between the artificial teeth 1 and the denture base 2. provided, it covers the boundary recess 3 that can be a boundary portion of the human Koha 1 and denture base 2 with a transparent coating 4. The denture has a transparent surface 4 that makes the boundary recess 3 a smooth surface with no recess or a shallow recess.
[0007]
Removable denture of the present invention, Ru may cover transparency film 4 outside the bounds the recess 3 of the artificial tooth 1 and denture base 2.
[0008]
Transparent film 4 and denture base 2 may be a A acrylic resin. The surface of the transparent coating 4 can be polished in a cured state.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. However, the Example shown below illustrates the base denture for materializing the technical idea of this invention, and this invention does not specify a base denture to the following.
[0010]
Further, in this specification, in order to facilitate understanding of the scope of claims, the numbers corresponding to the members shown in the embodiments are referred to as “claims” and “means for solving the problems”. It is added to the member shown by. However, the members shown in the claims are not limited to the members in the embodiments.
[0011]
1 to 4 includes a plurality of artificial teeth 1 and a denture base 2 to which the artificial teeth 1 are fixed. In the illustrated denture, all artificial teeth 1 composed of both anterior teeth and molars are fixed to the denture base 2. However, the denture of the present invention is not specified as a structure in which all teeth composed of anterior teeth and molars are fixed to the denture base, that is, a complete denture for an edentulous person, so-called complete denture. A denture is a structure in which a part of the anterior teeth or molars is fixed to the denture base, or only the anterior teeth or molars are fixed to the denture base. It can also be applied to dentures. The plurality of artificial teeth 1 are fixed to the denture base 2 in a state where a recess is formed at the boundary between the adjacent artificial teeth 1 as in the case of natural teeth. As shown in FIGS. 2 and 3, the artificial tooth 1 is firmly fixed to the denture base 2 such that a part thereof is embedded in the denture base 2 and the remaining part of the surface protrudes from the denture base 2. The
[0012]
The artificial tooth 1 is manufactured by molding a synthetic resin, ceramic, or metal into a natural tooth shape. The artificial tooth 1 made of synthetic resin or ceramic is formed by coloring the molded surface to the color of natural teeth, or using colored synthetic resin or ceramic. A synthetic resin such as an acrylic resin or polycarbonate is used as the synthetic resin for forming the artificial tooth 1. The artificial tooth 1 can also be formed by casting a metal. The metal artificial teeth are made of, for example, a gold alloy, a gold-silver palladium alloy, or the like.
[0013]
The denture base 2 has a plurality of artificial teeth 1 embedded and fixed. The denture base 2 has an outer shape in the same shape as natural gingiva. Since the denture in the figure is fixed to the gingiva so that the denture base 2 can be detached, the inner shape is molded into a shape that can be fixed in close contact with the gingiva. Plated dentures are not always attached to the gingiva. For example, since there is a denture base that is connected and fixed to the adjacent remaining tooth, the denture base 2 is formed into a shape optimal for the structure to be mounted. Further, the denture base 2 is formed of a synthetic resin such as an acrylic resin or polycarbonate. The synthetic resin for molding the denture base 2 is colored in gingival color, and there is also a mixture of fibers colored in red. The denture base 2 can have a surface pattern that closely approximates natural gingiva. That's because red fibers look like gingival blood vessels. The denture base 2 is not necessarily formed entirely of synthetic resin. The denture base 2 can also be manufactured as a structure in which a metal and a synthetic resin are partially mixed.
[0014]
Artificial tooth 1 and denture base 2, so is formed in a shape that approximates the natural tooth and gums can boundary recess 3 at the boundary between the artificial tooth 1 and denture base 2. As shown in the figure, the denture has a boundary recess 3 covered with a transparent coating 4. However, in these figures, for easy understanding of the transparent film 4, and displayed by hatching in FIG. 1, are displayed in black out the Te FIGS odor. The denture denture is applied so that uncured transparent synthetic resin is filled in the boundary recess 3, and the transparent synthetic resin is cured to fill the boundary recess 3. The transparent synthetic resin applied so as to fill the boundary recess 3 is finished to make the boundary recess 3 a smooth surface without a recess or a smooth surface with a shallow recess. The transparent coating 4 having the boundary recess 3 as a smooth surface without a recess can prevent food residues from accumulating in the boundary recess 3 in an ideal state. However, although the boundary recessed part 3 is not made into a smooth surface, the transparent film 4 applied so as to make the boundary recessed part 3 shallow can also considerably reduce the accumulation of food residues. In particular, the boundary concave portion 3 tends to accumulate food residues at corners having acute angles, but the transparent coating 4 can be effectively prevented from accumulating food residues by filling the corners. Therefore, the denture of the present invention does not necessarily need to have the boundary recess 3 as a smooth surface, and can be covered with the transparent coating 4 so as to make the boundary recess 3 shallow.
[0015]
It is the outside of the plate denture that food residue accumulates in the boundary recess 3 and is conspicuous. Accordingly, the denture with denture can be structured such that the transparent coating 4 is applied only to the outer boundary recess 3 and the inner boundary recess 3 is not covered with the transparent coating 4. However, the denture with dentures that covers both the outer and inner boundary recesses 3 with the transparent coating 4 has an advantage that it can effectively prevent food residues from accumulating on both sides. Furthermore, as shown in the figure, a denture with a transparent coating 4 covering all boundary recesses 3 between the artificial tooth 1 and the denture base 2 effectively collects food residues in all the denture bases 2. Can be prevented. However, it is practical that the denture base itself has a design with few boundary recesses on the inside. In addition, since the denture is easy to retain food residues and conspicuously in appearance is the molar tooth, it is possible to provide a transparent coating only at the boundary concave portion formed between the artificial tooth of the molar tooth and the denture base.
[0016]
Removable denture shown in FIGS. 1 to 3, along the boundary of the artificial tooth 1 and denture base 2, a boundary recess 3, that have a transparent film 4 provided with a required width.
[0017]
As the transparent coating 4, a transparent immediate polymerization type acrylic resin is suitable. In particular, when the denture base resin is an acrylic resin, it is optimal from the viewpoint of adhesiveness. This synthetic resin is subjected to pressure polymerization, and then the hardened surface is polished to finish the surface without fine irregularities. Since this transparent coating 4 can raise the surface to a beautiful smooth surface, light is not irregularly reflected on the surface, and has an advantage that the transparent coating 4 can be made inconspicuous as an excellent transparency. As the synthetic resin for the transparent coating 4, all synthetic resins that are cured and transparent and that are not harmful to the human body in the mouth can be used.
[0018]
【The invention's effect】
The denture of the present invention effectively prevents dirt from accumulating in the boundary recess formed at the boundary between the artificial tooth and the denture base, facilitates cleaning of this portion, and has an appearance of natural gingiva and natural teeth. There is the feature that it can be in a state without a sense of incongruity as the same shape. It is because denture of the present invention, covers the boundary recess can in a boundary portion of the human Koha and denture with a transparent film, and the smooth surface with no or shallow recess of the recess. Since the denture with this structure covers the boundary concave portion with a transparent coating, it is possible to prevent food residue and the like from accumulating in the boundary concave portion in an ideal state and facilitate cleaning. For this reason, it is possible to eliminate the trouble of cleaning, and it is possible to effectively prevent the wear of the artificial teeth and the denture base caused by the long-time brushing. And since a boundary recessed part is coat | covered with a transparent film, it can be set as the denture which does not have the discomfort on an external appearance.
[Brief description of the drawings]
FIG. 1 is a side view of a denture according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing an anterior portion of the denture shown in FIG. 1. FIG. 3 is a molar portion of the denture shown in FIG. FIG. 4 is a bottom view of the denture shown in FIG.
DESCRIPTION OF SYMBOLS 1 ... Artificial tooth 2 ... Denture base 3 ... Boundary recessed part 4 ... Transparent coating

Claims (4)

A denture denture formed by fixing a plurality of artificial teeth (1) to a denture base (2),
And a transparent coating (4) with a predetermined width along the boundary of the artificial teeth (1) and denture base (2), the border recesses can be in a boundary portion of the human Koha (1) and denture base (2) ( 3) is covered with a transparent coating (4), and with this transparent coating (4), the boundary concave portion (3) has a smooth surface with no concave portion or a shallow concave portion. .   The denture denture according to claim 1, wherein a transparent coating (4) is coated on an outer boundary recess (3) between the artificial tooth (1) and the denture base (2). The denture according to claim 1, wherein the transparent coating (4) and the denture base (2) are acrylic resins.   The denture according to claim 1, wherein the surface of the transparent coating (4) is polished in a cured state.

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