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Is a White Diet Necessary for Tooth Bleaching Procedures? A Systematic Review and Meta-Analysis.

Louis HardanRim BourgiAbigailt Flores-LedesmaWalter DevotoEmma DevotoMiguel Ángel Fernández-BarreraNaji KharoufCarlos Enrique Cuevás-Suarez
Published in: Dentistry journal (2024)
The aim of this investigation was to conduct a systematic review and meta-analysis to determine the necessity of a white diet during or following a bleaching procedure. This systematic review and meta-analysis followed the PRISMA guidelines meticulously. The research question was: Is a white diet necessary during and/or after a bleaching treatment? In vitro studies or clinical trials reporting the color change in bleached enamel after the use of a free-staining diet were considered for full-text review. For the analyses, a random-effects model was employed. Statistical significance was defined as a p -value < 0.05. A total of 17 documents were eligible for qualitative analysis: 5 clinical trials and 12 in vitro studies. Only data from the clinical trials were included in the meta-analysis. For at-home bleaching, differences in the color among the subjects were not statistically significant during the first ( p = 0.64), second ( p = 0.26) or third ( p = 0.43) weeks of treatment. Also, the color difference one month after finishing the bleaching treatment were not statistically significant ( p = 0.27). The color difference one month after finishing an in-office treatment showed that the restrictions on diet did not significantly improve the bleaching outcomes ( p = 0.90). According to the findings of this review, dietary restrictions are not necessary during or after bleaching procedures.
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