1Professor and Head of the, Dept. Conservative Dent, Guru Nanak Institute of Dental Sciences and Research
2Post graduate trainee, Dept. of Conservative Denti, Guru Nanak Institute of Dental Sciences and Research
*Corresponding Author: Dr. Deepshikha Chowdhury, Post graduate trainee, Dept. of Conservative Dentistry, Guru Nanak Institute of Dental Sciences and Research, Email: deepshikha033@gmail.com
Online published on 18 March, 2019.
To evaluate the effect of tooth brushing on the surface roughness of composite resin, Cention N, glass ionomer cement, silver amalgam by using a dentifrice and a customized automated brushing machine under a profilometer.
A total of 40 specimens (6mm × 2mm) were prepared from four different restorative materials (n = 10 from each group): Group 1: Tetric N Ceram (Ivoclar Vivadent), Group 2: Cention N (Ivoclar vivadent), Group 3: Silver amalgam (DPI), Group 4: Type II glass ionomer cement (GC). Baseline profilometric read out was taken for each group after which the samples were subjected to tooth brushing using a customized automated tooth brushing machine for sixty minutes using Colgate Total (Colgate Palmolive, India). Change in surface roughness was recorded after brushing using a profilometer and the values were compared across the groups.
One Way Analysis of variance (ANOVA) followed by post hoc Tukey's Test Results: Statistically significant differences (p<0.05) were observed in the values of surface roughness (Ra) among (Group 1, group2 and group 4) whereas group 3 (silver amalgam) had no significant change in surface roughness (P> 0.05).
Within the limitations of the study, significant change in surface roughness was observed in type II glass ionomer cement followed by nanohybrid composite resin and Cention N. Insignificant change in surface roughness was observed in silver amalgam.
Abrasion, dentifrice, restorative materials, profilometry, surface roughness
