The effect of various denture cleansers on the physical and mechanical properties of CAD/CAM and heat-polymerized denture base materials: an in vitro study

Objectives To investigate the effects of denture cleansers on the various properties of CAD/CAM and heat-polymerized polymethyl methacrylate (PMMA). Materials and methods Two different brands of heat-polymerized and two of milled PMMA were fabricated ( n = 50), in total 200. Each group was randomly divided into five subgroups ( n = 10): control groups (D1) kept in distilled water, cleaning tablets (D2, D3), neutral (D4) and acidic electrolyzed acid water (EAW) (D5). Surface roughness, hardness and flexural strength values were evaluated. Data were statistically analyzed with two-way ANOVA and Tukey post hoc test for comparison ( p 0.05). The denture cleansers had no significant effect on surface hardness and flexural strength of heat polymerize groups ( p > 0.05). However, D2, D3 and D5 cleaning agent decreased the hardness values of the milled group ( p