Robinson P B, Dunne S M, Millar B J
Department of Conservative Dentistry, King's College School of Medicine and Dentistry, London, England.
J Prosthet Dent. 1994 Apr;71(4):390-3. doi: 10.1016/0022-3913(94)90101-5.
The aims of this study were to determine whether the use of a topical surfactant (Hydrosystem) reduced the number of air bubbles visible on the surface of polyvinyl siloxane impressions and stone dies. The impressions exhibited a mean of 1.4 +/- 2.1 bubbles when Hydrosystem wetting agent was used, which was significantly less (p < 0.001) than when it was not used (mean 5.5 +/- 4.7 bubbles). Dies prepared with Hydrosystem surfactant contained a mean of 0.4 +/- 0.8 bubbles, which was significantly (p < 0.001) less than when Wax-Mate surface agent was used (mean 3.5 +/- 5.2 bubbles). In conclusion, in vitro use of Hydrosystem surfactant reduced the number of air bubbles on the surface of silicone impressions and stone dies.
本研究的目的是确定使用一种局部表面活性剂（Hydrosystem）是否能减少在乙烯基聚硅氧烷印模和石膏模型表面可见的气泡数量。当使用Hydrosystem湿润剂时，印模上平均有1.4±2.1个气泡，这显著少于未使用时（平均5.5±4.7个气泡，p<0.001）。用Hydrosystem表面活性剂制备的模型平均有0.4±0.8个气泡，这显著少于使用Wax-Mate表面剂时（平均3.5±5.2个气泡，p<0.001）。总之，体外使用Hydrosystem表面活性剂可减少硅橡胶印模和石膏模型表面的气泡数量。
