Comparative Evaluation of Surface Roughness of Cention N after Brushing Simulation with Herbal and Fluoridated Toothpaste - An In-vitro Study

Introduction: Cention N, a new alternative tooth coloured resin based filling material. Toothbrushing abrasion is a key issue in restorative dentistry. A smooth surface is a crucial factor to be considered for establishing a successful restoration because the surface roughness of a restorative material results in plaque deposition, discoloration of the restoration, microleakage and secondary caries. The present study aims in evaluating the surface roughness of Cention N before and after brushing with herbal toothpaste and fluoridated toothpaste.

Materials and Methods: A total of 8 Cention N samples were prepared and randomly divided into two groups into 2 groups as Group A- herbal toothpaste(n=4), Group B- fluoridated toothpaste(n=4). The samples were placed in a brushing simulator for 30000 cycles and their surface roughness was evaluated by using stylus profilometer-Mitutoyo SJ 310 and with the results collected a statistical analysis was performed using the statistical software “SPSS VERSION 23” and its results are demonstrated in the form of bar graph.

Results: The Ra values of both the samples before and after brushing simulation was constant and only the Rq and Rz values showed difference between the groups. There was no notable changes in surface roughness parameters between the groups. The statistical “paired t test” analysis depicts that the p value for Rz parameter was 0.359 which is (p<0.05), hence statistically insignificant.

Conclusion: Brushing simulation did not influence the surface roughness of Cention N restorative material. There was no significant increase or decrease in surface roughness values after brushing simulation which indicates cention N material can withstand abrasive forces, but the results can vary in oral cavity environment.