Bond Strength of a Self-curing Resin with Barbituric Acid Derivatives to a Few Kinds of Denture Base Resin in Denture Repair.

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  • 義歯修理におけるバルビツール酸誘導体を用いた常温重合レジンと床用レジンとの接着性

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Abstract

A secure bond between self-curing resin and denture base resin is necessary for clinical success in denture repair. This study was conducted to evaluate the bond strengths of a new self-curing resin with barbituric acid derivatives to pour-type denture base resin, heat-cured resin and microwave-cured resin and investigate the effect of surface treatment. The repair surfaces of test specimens were treated in various manners before self-curing resin was applied to the joint. A three-point loading test was carried out to determine the transverse strength of specimens, and the surfaces of the three kinds of denture base resin after surface treatment were observed with a scanning electron microscope.<BR>The results were as follows:<BR>1. The surface treatment with dichloromethane following alumina air abrasive was the most effective on the three kinds of denture base resin.<BR>2. The bond strength of a new self-curing resin with barbituric acid derivatives was weaker than that of conventional self-curing resin to denture base resins without any surface treatment.<BR>3. The effects of any surface treatment with a new self-curing resin with barbituric acid derivatives were inferior to those with conventional resin.

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