Evaluations of dimensional changes after disinfection of elastomeric impression materials with Ozone water, sodium hypochlorite, and autoclave method
Keywords:
autoclave, disinfection, sodium hypochlorite, impression materials, ozone waterAbstract
To evaluate the dimensional changes after disinfection of elastomeric impression materials with Ozone water, sodium hypochlorite, and autoclave method. A total of 40 impressions were made and divided into 4 groups according to type of sterilization method used (Group 1: Control without use of disinfectant, Group 2: Autoclave, Group 3: sodium hypochlorite, Group 4: ozone water method) with 10 in each group. Impression materials in each group were contaminated with Pseudomonas aeruginosa and poured with dental stone and subjected for different disinfection procedure. Microbial evaluation was done by the cultural method and dimensional stability for accuracy. Results were statistically evaluated. The Significant difference was seen in microbial load with sodium hypochlorite and autoclave method followed by ozone water compared to control group (P < 0.001). Autoclave and ozone water methods are effective in reducing microbial count and can be used as an effective disinfectant method.
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