Student’s t-test and analysis of variance will be used to compare mean colorimetric data. Either the chi-squared test or Fisher’s exact test will be used for the determination of associations among the categorical variables. Descriptive analysis of the data will be performed. After the whitening procedures, the participants will be evaluated using a visual analog scale for tooth sensitivity and digital spectrophotometry to measure changes in color. Adolescents aged 12 to 20 years will be allocated to different groups based on treatment ( n = 16 per group): (1) placebo (2) 6.0% hydrogen peroxide (White Class with Calcium, FGM) (3) 7.5% hydrogen peroxide (White Class with Calcium, FGM) and (4) 7.5% hydrogen peroxide (Oral B 3D White, Oral-B).
FREE CLINICAL TRIALS FOR TEETH WHITENING TRIAL
The aim of the proposed controlled clinical trial will be to assess colorimetric changes and increased dental sensitivity in adolescent patients submitted to tooth whitening with 6% and 7.5% hydrogen peroxide using home kits with whitening strips. This emphasis on esthetics has led dentists to seek resources that respect the standards established by society, but without compromising the integrity of the teeth. Technological innovations in dental materials have been fueled by the desire of patients to improve the esthetics of their teeth.
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