全部鋳造冠の印象採得における個歯トレーの有効性についての臨床的検討

概要

論文の詳細を見る
This study was executed at an opportunity for taking the impressions of a full crown a butment tooth by the five different methods with the four different impression materials ; the copper ring tray on the abutment method with the polysulfide rubber, the resin ring tray on the abutment method with silicone rubber, the wash technique with silicone rubber, the hydrocolloid impression technique and the hydrocolloid-alginate impression technique. The reproducibility of the preparation margin on the ten stone dies was photographicallymeasured and the following results were obtained. 1. The reproducibility of the preparation margin was affected considerably by the following conditions. 1) The character of the impression materials, 2) the position of the preparation margin in the gingiva sulcus and 3 the undercut degree beneath the preparation margin. 2. The impression technique with the individual ring tray on the abutment showed greatutility under any condition of the preparation margin on the abutment. 3. The impression method should be selected clinically according to the condition of the abutment.
日本補綴歯科学会の論文
1989-06-01