接着性オペークレジンによるリテンションビーズの削減について

概要

論文の詳細を見る
One of the weak points in the acrylic resin veneered crown as compare with the bonded porcelain crown is that a mechanical retention should be indispensable to fix the resin onto the metal frame. Introduction of the adhesive opaque resin into the fabrication of the veneered crown is expected to omit such the mechanical retention. The retention beads, however, could not be excluded completely due to the less endurance of commercially available adhesive-opaques. The aim of this study is to clarify how much beads could be remove without damaging the adhesive strength and the marginal seal. It was shown that the removal of beads by 50% from the center of the veneered portion decreased the adhesive strength to about 60〜80%, whereas permitted the marginal leakage of 2〜5% after subjected to the thermal cycles of 10,000 times.
1988-06-01