JPH05178713A - Processing material for denture - Google Patents

Abstract

PURPOSE:To enable the forming of a denture such as denture base, bar or clasp having high strength and rigidity in spite of thin thickness and light weight by using an easily formable processing material having thin thickness and excellent strength and rigidity. CONSTITUTION:The objective processing material for denture is composed of a semi-cured polymer composite material consisting of a synthetic resin 1 and glass fiber 2 or woven glass fiber fabric.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flooring material for dentures, a bar, a clasp, and the like, and processed materials used for dentures.

[0002]

2. Description of the Related Art Denture base materials, bars, and clasps are: (a) easy to process (b) thin to process (c) light (d) strong (e) expansion and contraction Less is required.

Research and development have been made to meet this demand, and today polymethymethacrylic acid (PMMA) is used as a floor material.
Although a synthetic resin material (such as resin is simply called in the industry) is used and a special alloy is used for the bar and clasp, there is a point that it is not enough to fully satisfy the above requirements. There is a problem that different materials are used because one is a resin and the other is a metal.

An object of the present invention is to provide a denture working material which can sufficiently meet the above-mentioned requirements and which can be commonly used for a floor material and a clasp.

[0005]

In order to achieve the above object, the processed material for denture of the present invention is composed of a semi-cured polymer material of synthetic resin resin and glass fiber or glass fiber woven material.

[0006]

[Function] Since the synthetic resin resin is composed of the polymer material of the glass fiber or the glass fiber woven fabric, the synthetic resin resin is reinforced by the glass fiber or the glass fiber woven fabric and has excellent strength and rigidity, Since there is little shrinkage, it sticks to the molded model and there is little deformation.

[0007]

EXAMPLE FIG. 1 shows a prepreg A which is a processed material in which a thin sheet obtained by wrapping the front and back of a glass fiber 2 with a synthetic resin resin 1 is laminated, and the prepreg A is wrapped with a light-shielding polypropylene film 3 for peeling or sealed. The synthetic resin 1 is in a semi-cured soft phase.

FIG. 2 shows a prepreg B made of a laminate of thin sheets obtained by polymerizing a glass fiber woven fabric 4 on a synthetic resin resin 1 which is also a soft phase.

Each of these prepregs A and B is photopolymerized by shining light on them, or is heated in hot water to cure the synthetic resin resin.

When manufacturing the full denture 5 shown in FIG. 3, the peeling film 3 is removed, and the plaster model 9 of the tooth is pressed with a finger to press it, and the synthetic resin resin is applied by photopolymerization or heating as described above. Let it harden.

In this case, as the prepreg, a thin cloth made of glass fibers and a synthetic resin material are polymerized as shown in FIG.

FIG. 4 shows a local denture base 8, and the clasp 6 is obtained by finely cutting the prepreg shown in FIG.

FIG. 5 also shows a local denture base, and the prepreg of the present invention is also used for the paratalbar 7 of the denture base. In this case, the glass fiber is preferably roving.

When the rigidity is not sufficient, a hybrid structure using carbon roving may be used.

[0015]

[Effect] The above-mentioned processed material for artificial teeth of the present invention is composed of the polymer material of the synthetic resin and the glass fiber or the glass fiber woven fabric. It is far superior in strength and rigidity to the conventional one.

Therefore, the processing material may be thin, easy to process, and thin and light for the denture base, the bar and the clasp, but there is an advantage that the denture can be molded with less strength and rigidity and less discomfort.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a processed material for artificial teeth according to the present invention.

FIG. 2 is a perspective view showing another example of a processed material for artificial teeth according to the present invention.

FIG. 3 is a plan view of a full denture.

FIG. 4 is a plan view of a local denture base.

FIG. 5 is a plan view of the local denture base.

[Symbols in the figure]

 1 Synthetic resin resin 2 Glass fiber 3 Release film 4 Glass fiber woven fabric 5 Full denture 6 Clasp 7 Paratalver 8 Local denture base 9 Tooth plaster model base

Claims (2)

[Claims] 1. A denture processing material comprising a semi-cured synthetic resin material of synthetic resin resin and glass fiber. 2. A processed material for denture, which comprises a semi-cured synthetic material of synthetic resin resin and glass fiber woven fabric.