Heat cured and self cured polymethylmetacrylate for interocclusal splints

Fit, retention and faults [cracks, voids, porosity] of maxillary splints were evaluated. Twenty five patients were selected for the study, for each patient, two maxillary splints were fabricated. One was fabricated using heat cured PMMA and the other was fabricated using self cured PMMA. The results of the study showed that, differences between the two materials were statistically non significant. The fit and retention of the splints were unaffected by the material use, Where splints are indented for long term use the advantages of the mechanical properties of heat cured polymethyl-methacrylate indicate that it should be the material of choice