Effects Of Dentifrices On Surface Properties Of Cad - Cam Manufactured Temporary Restorative Materials

Aim: The aim of the study is to find the effects of dentifrices on surface properties of Computer-aided design and computeraided manufacturing (CAD-CAM) temporary restorative materials. Materials and Methods: 12 printed Poly methyl methacrylate (PMMA) blocks were collected from the CAD-CAM centre. Blocks were mounted on the die stone and 4 types of dentifrices were used for the novel technique in this study. The preparation surface roughness was taken using a stylus profilometer then the blocks were placed in the brushing stimulator (Toothbrush stimulator ZM3.8) and readings were taken again after cycles for 1 month and 3 months. Results and Discussion: Results show that there is no significant difference in the surface roughness of the PMMA blocks before and after brushing with different dentifrices for 1 month and 3 months cycles. Anova values show no significance among the Roughness average (Ra), Root mean square roughness (Rq) and arithmetic mean value of the single roughness depths of consecutive sampling length (Rz) values of preoperative, 1 month and 3 months. Conclusion: The study concludes that different dentifrices have no significant changes in the surface properties of the CADCAM manufactured PMMA blocks.