Influência da irradiação da luz sobre os clareamentos dentais: Revisão de Literatura

Abstract

Introduction: "White-tooth fever" is a daily routine in dentistry and deserves study and safety by dentists who use it, but the literature is still controversial about whether or not to use an external light source. Objective: To carry out a critical review of the literature of the last five years on the use of light sources as a strategy to accelerate and / or activate bleaching agents, with emphasis on efficacy and possible adverse effects. Methods: The research was carried out between May and October 2017 using the electronic databases Pubmed and Bireme, for selection of papers of the last five years. All languages were accepted as long as there was an abstract in English or Portuguese. Following criteria and inclusion and exclusion; focusing on the evaluation of the use of different light sources for the activation of bleaching agents. The research strategy included the use of the terms "Tooth whitening LED" and "Tooth whitening laser". Results: A total of 921 articles were identified, which, after applying the inclusion / exclusion criteria, 20 papers were selected. At the same time, articles of relevance were used. Among them, some studies have reported significant improvements with the use of light, even though it is limited in the short term, while most studies did not find significant differences between the use of light and light. Conclusion: Although the available literature is questionable, the use of light sources in association with office dental whitening should be carefully analyzed so that there is no risk involved in the use. New research should be conducted to produce more robust evidence to condemn or support its use and to verify its effectiveness.