Influence of autoclave sterilization on dimensional stability and detail reproduction of 5 additional silicone impression materials.
- VernacularTitle:高温高压灭菌对加成型硅橡胶印模尺寸稳定性及细节再现性的影响
- Author:
Tong-kai XU
1
;
Zhi-hui SUN
;
Yong JIANG
Author Information
- Publication Type:Journal Article
- MeSH: Dental Impression Materials; chemistry; Dental Models; Hot Temperature; Materials Testing; Microscopy; Polyvinyls; chemistry; Silicone Elastomers; chemistry; Siloxanes; chemistry; Sterilization; methods
- From: Chinese Journal of Stomatology 2012;47(3):182-185
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the dimensional stability and detail reproduction of five additional silicone impression materials after autoclave sterilization.
METHODSImpressions were made on the ISO 4823 standard mold containing several marking lines, in five kinds of additional silicone. All the impressions were sterilized by high temperature and pressure (135 °C, 212.8 kPa) for 25 min. Linear measurements of pre-sterilization and post-sterilization were made with a measuring microscope. Statistical analysis utilized single-factor analysis with pair-wise comparison of mean values when appropriate. Hypothesis testing was conducted at alpha = 0.05.
RESULTSNo significant difference was found between the pre-sterilization and post-sterilization conditions for all locations, and all the absolute valuse of linear rate of change less than 8%. All the sterilization by the autoclave did not affect the surfuce detail reproduction of the 5 impression materials.
CONCLUSIONSThe dimensional stability and detail reproduction of the five additional silicone impression materials in the study was unaffected by autoclave sterilization.
