Hardness, flexural strength, and flexural modulus comparisons of three differently cured denture base systems.

Purpose: This study compared the surface hardness, flexural strength, and flexural modulus of a light- and heat-cured urethane dimethacrylate (UDMA) to two conventional polymethyl methacrylate (PMMA) denture base resins. The effect of less-than-optimal processing condition on the hardness of internal and external surfaces of UDMA specimens was also investigated.

Materials And Methods: The materials tested were Eclipse (light- and heat-cured UDMA), Meliodent (heat-cured PMMA), and Probase Cold (auto-cured PMMA).