無菌顎の印象採得に使用される最終印象材の流動性に関する研究

概要

論文の詳細を見る
The flow characteristic of an impression material is one of important factors in the selection of suitable materials for edentulous impression procedures. The purpose of this study was to compare the degree of flow obtained from several types of impression materials (zincoxide-eugenol impression materials, polysulfide rubber impression materials, silicone rubber impression materials) by the parallel plate viscometer. The viscometer is used to measure the spread radius of samples (a volume of 0.5cm^3) between two parallel flat plates loaded by a 575-gramas weight at 1, 10, 60, 100 seconds after loading had begun. The load was applied initially at 90 seconds after mixing had begun. All samples were mixed according to the manufacture's recommendations. The finding was that zinc oxide-eugenol impressiorr materials (ADAS No.16 type 1) and addition-type silicone rubber impression materials (ADAS No.19 low viscosity type) had high flow compared to condensatioua-type silicone rubber impression materials (ADAS No.19 medium viscosity type).
日本補綴歯科学会の論文
1988-12-01