Technical School, Federal University of Paraná.
J Appl Oral Sci. 2004 Sep;12(3):244-9. doi: 10.1590/s1678-77572004000300016.
The purpose of this study was to evaluate the dimensional stability of heavy and light bodied condensation silicones after immersion in disinfectant solution for 10 or 20 minutes. The impression materials were Optosil Comfort and Xantopren VL Plus and the disinfectant solutions were 1% sodium hypochlorite and 2% glutaraldehyde. Impressions were made on a perforated stainless steel tray, according to the American Dental Association specification No. 19, adding up to a total of 50 samples. The double mixing method (one time, two viscosities) was used. Impressions were removed from the roulette block after 7 minutes to ensure complete curing and then immersed in the solutions. Impressions not submitted to treatment composed the control group. After these steps, the impressions were removed from the solution, rinsed in running water and air-dried. Three-dimensional measurements were calculated using an optic microscope graduated at 0.001 mm. The two-way ANOVA indicated no differences (p>0.05) for any combination between variables. The results showed that the solution studied can be safely used to disinfect condensation silicone in clinical prosthodontic procedures.
本研究旨在评估重体和轻体缩合硅橡胶在消毒剂中浸泡 10 或 20 分钟后的尺寸稳定性。印模材料为 Optosil Comfort 和 Xantopren VL Plus，消毒剂分别为 1%次氯酸钠和 2%戊二醛。按照美国牙科学会规范 No.19，在有孔不锈钢托盘上制取印模，共制取 50 个样本。采用双混合法（一次，两种粘度）。7 分钟后从模具块中取出印模以确保完全固化，然后浸入溶液中。未进行处理的印模作为对照组。完成这些步骤后，将印模从溶液中取出，在流水下冲洗并风干。使用分度为 0.001mm 的光学显微镜计算三维测量值。双因素方差分析表明，变量之间的任何组合均无差异（p>0.05）。结果表明，研究中使用的溶液可安全用于临床修复程序中缩合硅橡胶的消毒。
