硬質レジン前装冠の設計に関する研究 : 第3報カラーレスタイプの検討

概要

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The collarless porcelain veneer crown has been advocated in several reports and is actually in use recently. However, this sort of technique has not yet been applied to the resin veneered prosthesis. The present study was planned as a way to investigate the possibility of the collarless resin veneered crown. Thus, the influence of the differences in shape of metal frameworks, the effectiveness of hardening heat treatment and adhesive Juting agents, and the properties of veneering resins were examined by measuring the strain on the cervical part of the crowns caused by staticpressure. The results of the investigation are as follows : 1. In the experiment using metal frameworks without veneering resin, the differences in shape did not exert any influence and the thick underlying metal was better than the thin one. 2. In the experiment using test pieces of resin veuaeered crown, the influence of differences in shape was negligible. 3. The hardening heat treatment was not effective within the range of elastic transformation. 4. The strain on crowns veneered with CESEAD had a magnitude smaller than the strain on those veneered with New-METACOLAR L. 5. The strain on resins of veneered crowns had a magnitude larger than the strain on metal frameworks with the same shape.
日本補綴歯科学会の論文
1991-04-01