Objective: here was investigated the potential of phytoconstituents as cinnamaldehyde and α-terpineol as denture cleansers, which was evaluated the antifungal activity, also their effect on the color change of the poly(methyl)methacrylate (PMMA). Methodology: Candida albicans biofilms were formed on PMMA specimens and exposed a 10 minutes daily treatment with cinnamaldehyde (10 mg/ mL), α-terpineol (10 mg/ mL), NaCl 0.9%, and NaClO 1%. Biofilms were collected, then analyzed the cell viability (CFU/ mL), cell metabolism (MTT), and roughness. Moreover, the color variation of the specimens during seven and 14 days was checked. Kruskal-Wallis, Mann Whitney, and ANOVA one-way were applied (α < 0.05). Results: cinnamaldehyde and α-terpineol de...