Surface Roughness and Weight Loss of Heat Cure and Self-Cure Acrylic Resins Which Were Subjected to Tooth Brush and Tooth Paste Cleaning-an In Vitro Study

Objectives:• To determine and compare the surface roughness of heat and chemically cured acrylic resins after subjecting them to mechanical polishing, chemical polishing and chemical polishing with microwaving.• To find out the surface roughness and weight loss caused by tooth brushes and dentifrices on heat and chemically cured acrylic resins which were subjected to mechanical polishing, chemical polishing and chemical polishing with microwaving.Materials and Methods: Rectangular specimens were prepared and they were subjected to mechanical polishing, chemical polishing and chemical polishing with microwaving.These specimens were then subjected to tooth brushing with tooth pastes.Surface roughness and weight of the specimens were measured before and after tooth brushing.Medium and hard tooth brushes and one regular tooth paste and one gel tooth paste were included.Brushing was done with a motor driven device and the brushing cycles were limited to 30,000.Data was statistically analyzed using ANOVA. Conclusions• Heat cure acrylic resin can resist surface roughness better than self cure resins.The roughness values observed in both the resins were within the clinically acceptable limits.• Heat cure resin which is mechanically polished can resist surface roughness better than in chemically polished specimens.• Tooth brushes and pastes included in the study will not cause surface roughness beyond the acceptable limit within a period of three years.• Heat cure acrylic resin undergoes more weight loss than self cure resin when subjected to brushing with tooth pastes.• Microwaving did not particularly improve the properties of the resins to resist surface roughness and weight loss.Surface Roughness and Weight Loss of Heat Cure and Self-Cure Acrylic Resins Which Were Subjected to Tooth Brush and Tooth Paste Cleaning-an In Vitro Study Citation: Himabindu Krishnamurthy., et al. "Surface Roughness and Weight Loss of Heat Cure and Self-Cure Acrylic Resins Which Were Subjected to Tooth Brush and Tooth Paste Cleaning-an In Vitro Study".Acta Scientific Dental Sciences 8.1 (2024): 95-102.Surface Roughness and Weight Loss of Heat Cure and Self-Cure Acrylic Resins Which Were Subjected to Tooth Brush and Tooth Paste Cleaning-an In Vitro Study Citation: Himabindu Krishnamurthy., et al. "Surface Roughness and Weight Loss of Heat Cure and Self-Cure Acrylic Resins Which Were Subjected to Tooth Brush and Tooth Paste Cleaning-an In Vitro Study".