Measurement of color luminosity regression after home dental bleaching in smoking and non-smoking patients

Abstract

Introduction: There are many studies on the effectiveness of tooth whitening, however, there are very few who speak of color regression (a phenomenon that occurs after tooth whitening), the same occurs in relation to smoking patients. Objective: to determine the regression of color after home teeth whitening in smoking and non-smoking patients. Materials and Methods: Descriptive, cross-sectional study in 43 patients from a group of 60 previously treated at home with 10% carbamide peroxide for 3 weeks, meeting the inclusion and exclusion criteria, divided into experimental group (GE smoking patients ) and control group (non-smokers GC). Color variation was measured with the Vita Easyshade® spectrophotometer per month, 6 months and 9 months post-bleaching. The data obtained by measuring with the spectrophotometer were analyzed by the Shapiro Wilk and Kolmogorov-Smirnov test to assess normal distribution, and subsequently submitted to the Mann-Whitney U and Wilcoxon W Test (α = 0.05). Results: Delta L * was: 2.3 (GE) and 3.66 (GC). Deltas calculated with data from 9 months versus post-bleaching week. There were no statistically significant differences between both groups. Conclusions: There are no statistically significant differences in color regression after home bleaching with 10% Carbamide Peroxide in smoking versus non-smoking patients.

Keywords

• blanqueamiento de dientes
• fumadores
• color