Journal of Advances in Medicine and Medical Research

Introduction: Rough surface can lead to the decreased gloss of the material surface with subsequent plaque accumulation, which affects the esthetic quality of a restoration and initiate periodontal diseases.

Aim: The aim of this study was to evaluate the effect of toothbrushing with two types of dentifrices (with or without whitening agents) on the surface roughness of both nanohybrid filling resin and compomer.

Materials and Methods: Thirty specimens were prepared and divided to two main groups (n = 15) according to the restorative material, each main group randomly divided into three groups (n = 5) according to the surface treatment (Control, Colgate and Colgate whitening) for a period of 6 months. The surface roughness of the specimens was measured before and after the surface treatment.

Statistical Analysis: Results are presented as mean S.D. values. One-way ANOVA was used for multiple group comparison followed by Post-Hoc Tukey's test. The paired t-test was used for intragroup comparison and unpaired t-test for comparing independent sample groups.

Results: The composite group recorded the lowest mean values of the surface roughness in comparison with compomer. However, whitening toothpaste and conventional toothpaste had a significant change in surface roughness compared with control group. The control group recorded the lowest value while the whitening group recorded the highest value.

Conclusions: These results suggest that when using whitening dentifrices, it is advisable a whitening agent with minimal grain particles size to reduce the roughness of the restoration.