Efectividad de los procedimientos para el blanqueamiento dental. Una revisión sistemática

Abstract

Introduction: Tooth whitening is a procedure used to remove tooth staining and discoloration. Bleaching agents are: carbamide peroxide and hydrogen peroxide. This conservative approach regarding aesthetic treatment improves the color of the tooth without invasive procedures. Due to the current demand tooth whitening, several clinical trials evaluating its effectiveness have been developed. However, only one relevant systematic review was found, but its methodological structure is not consistent with the scientific requirements. Since the lack of studies with updated references, it is timely to carry out this systematic review. The objective of this study is to determine the effectiveness of tooth whitening procedures, considering the concentrations of bleaching agents, the use of light as an accelerator and sensitivity as an adverse effect. Methodology: The search was conducted in Medline, Science Direct, Springer, Scielo, Virtual Health Library, Cochrane, DOAJ, Free Medical Journals, Saber ULA and Google Scholar, considering systematic reviews (2) and clinical trials (58), published between 2009 and 2016 which included human participants. Results: Studies have shown that tooth whitening procedures are effective, being carbamide peroxide the most effective and used as a bleaching agent. Hydrogen peroxide is also effective, notwithstanding the evidence indicates that it originates a higher degree of tooth sensitivity. Conclusion: The use of 10% carbamide peroxide at-home application is recommended, because it causes less tooth sensitivity and provides greater patient comfort.