Minimization of the inevitable residual monomer in denture base acrylic

Residual monomer is inevitable for all PMMA-based products no matter what the curing conditions are. However, extended time at high temperature can allow low values to be attained, and the time allowed can compensate for processing temperatures somewhat lower than the ordinarily recommended 100 °C. It is suggested that overnight processing at 95 °C should be adopted to minimize [MMA]R and save energy. This result is of importance for work at high altitude.