Influência da dieta no clareamento dental: revisão sistemática e metanálise

Abstract

The objective of this systematic review was to assess the influence of diet in the final result of tooth whitening. Three data bases (Pubmed, Scopus e Lilacs) were searched to find clinical trials, in situ, and in vitro studies evaluating the effect of staining beverage / food during tooth whitening. One thousand and thirty-nine publications were found in the three databases (PubMed = 703; Scopus = 299; Lilacs = 97). After deleting duplicates, 2 independent reviewers evaluated the included studies and the discrepancies were solved by a 3º reviewer (1ª phase- by titles and abstracts; 2º phasefull-text). During the first fase 786 titles and abstracts were read and 28 records were included for full text reading. After reading the full text, 10 publications remained and were included in the systematic review and meta-analysis. Three meta-analyses were carried-out according to each kind of methodological study comparing means of colour change on enamel dental. These studies were also evaluated by bias risk and quality to evidence (Grade). Ten studies were included in the meta-analysis (in vitro = 4; in situ = 2; in vivo = 4). There was no statistically significant difference in the final result of the dental whitening with use of white or not white diet independent of the study design. Heterogeneity was high for in vitro studies (I2 = 82%), but lower for in situ and in vivo (I2 = 19% e I2 = 0%, respectivamente). The majority of studies showed high or unclear bias risk and the quality of evidence was considered moderate. Under the limitations of the studies included in the meta-analyzes, it was shown that diet did not interfere in the final result of the tooth whitening treatment.