COMPARATIVE EVALUATION OF DENTURE CLEANSERS ON SURFACE ROUGHNESS AND FLEXURAL STRENGTH OF HEAT CURE DENTURE BASE RESIN

*Dr. Tabish Ahmed and Dr. Pankaj Datta

ABSTRACT

Oral cavity contains variety of microorganisms that are capable of causing various pathological conditions. To avoid these pathological conditions various chemical agents are used to maintain the denture in proper hygiene. Aim: To study the effect of different chemical cleansers on surface roughness and flexural strength of heat cure denture base resin. Material and methodology: According to ADA Specification No. 12 for heat cure denture base resin, the samples were made. After cleansing protocol with various chemical cleansers, all samples were evaluated for surface roughness and flexural strength by mean of surface analyser (Surftest SJ-210, Mitutoyo, USA) and universal testing machine (Instron). Results: Data obtained by testing was compiled and analysed using statistical software SPSS version 19.0. ANOVA and Post-hoc Tukey’s tests were used and p-value <0.05 was considered significant in all tests. Conclusion: All heat cure denture base resin samples immersed in various chemical cleansers, sodium hypochlorite (4%) showed significant increase in surface roughness and decrease in flexural strength.

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