Retrospective Evaluation of Different Shade Selection Methods in the Context of the Vital Bleaching Technique

Authors : Ezgi TÜTER BAYRAKTAR, Hale CİMİLLİ, Nevin KARTAL, Cafer TÜRKMEN

Pages : 354-357

Doi:10.33808/clinexphealthsci.845986

View : 21 | Download : 7

Publication Date : 2021-06-30

Article Type : Research Paper

Abstract :Objective: This retrospective study was performed to evaluate the correspondence between digital image analysis and spectrophotometry  tooth shade results. Methods: The study population consisted of 10 patients. Office bleaching was performed using an in-office whitening. Tooth shade was analysed  by spectrophotometry and image analysis of digital photographs at baseline, and at 1-week and 3-month follow-up visits. The correspondence  between the two methods was evaluated based on the total color change insert ignore into journalissuearticles values(ΔE);, calculated using lightness, chroma, and hue insert ignore into journalissuearticles values(LCH); values for  spectrophotometry and lightness, red-green, blue-yellow insert ignore into journalissuearticles values(LAB); values for digital image analysis. The Mann–Whitney U, Wilcoxon signed rank and  Kruskal–Wallis tests were used for the statistical analyses insert ignore into journalissuearticles values(p<0.05);. The correspondence between digital image analysis and spectrophotometry  results was determined using the intraclass correlation coefficient insert ignore into journalissuearticles values(ICC);. Results: At the 3-month follow-up, there were no significant differences in tooth shade results between the spectrophotometry and digital  image analysis methods insert ignore into journalissuearticles values(p=0.855);, which showed strong agreement insert ignore into journalissuearticles values(ICC=0.983);. Conclusion: Digital image analysis may be a useful alternative to spectrophotometry for tooth shade selec tion.
Keywords : Bleaching, Digital image analysis, Shade Selection, Spectrophotometer