プラズマによる滅菌が歯科材料に及ぼす影響 : (1)印象体へのプラズマ照射が模型の表面性状へ及ぼす影響

概要

論文の詳細を見る
The purpose of this study was to examine the influence of plasma irradiation, of which sterilizing effect is highly expected, on the property of a model surface. Materials used in this study included alginate, silicone rubber impression materials and hard plaster. After plasma was applied to the impression for 1-90 seconds followed by infusion of hard plaster, the detail reproduction, dimensional change and surface rousrhness were examined. As for the sterilizing effect of plasma, the rate of inhibition was determined by using C. albicans after irradiation of plasma for 1-90 seconds. In addition, the condition without plasma irradiation was served as a control. The results obtained were as follows : 1. No significant difference was observed between the plasma-irradiated impression materials and the control concerning the detail reproduction, dimensional change and surface roughness of the examined model surface. 2. The sterilizing effect of plasma on C. albicans was observed on and after 15 seconds of irradiation and about 100% of inhibition was observed after irradiation for 90 seconds.
奥羽大学の論文
2003-09-30