The effect of disinfection procedure and storage on wettability of hydrophilized condensation silicone impression materials | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 13, Issue 1, December 2016, Pages 11-18 | ||
| Authors | ||
| Assistant professor; Dr. Suha Fadhil Dulaimi | ||
| Abstract | ||
| Background: a newly developed hydrophilized condensation silicone impression material claimed to be hydrophilic, but exposure to disinfection procedure and storage could alter the wettability of impression material. Thus, the aim of present study was to evaluate the effect of impression disinfection by immersion in 0.5% NaOCl for 10 mints. on wettability of hydrophilized condensation silicon . In addition, effect of storage after disinfection for two hours, measured by contact angle of dental stone mix with impression surface. Materials and Methods: Hydrophilized condensation silicone (putty and wash type) tested with type III dental stone and 0.5% sodium hypochlorite disinfectant solution were used in this study. Disinfection procedure by immersion for 10 mint. Wettability was evaluated in simulation of regular clinical situation pouring 2ml. of stone slurry on impression surface to form stone patty. Each patty sectioned into two halves, scanned with flat bed scanner and images printed. Dental stone mix contact angle with impression surface was measured with protractor from scanned image of the cross section of stone patty. Measurements were preformed before and after disinfection procedure, also after storage in humid environment for two hours. Results: The putty type showed significant difference p<0.001 when subjected to disinfection and storage. The wash type showed no significant difference p>0.05 when subjected to disinfection or storage. Both types together they were not affected by disinfection procedure p>0.05, but storage had significant effect p<0.001 on wettability. Conclusions: For the hydrophilized condensation silicone using both types together (putty + wash) for making impression improve wettability even after disinfection. Delay pouring impression for two hours cause deterioration of impression wettability. | ||
| Keywords | ||
| KEYWORDS; impression material; surfactant; disinfection; hydrophilicity | ||
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