In vitro analysis of the pH stability of dental bleaching gels during in-office procedures

Abstract

In 3 of the evaluated gels, a discrepancy existed between the manufacturer's information and the data obtained, which could lead, considering previous studies discussed throughout this article, to unexpected collateral effects on the patients, especially dental sensitivity. Thus, clinicians and researchers should be aware about pH stability studies of in-office bleaching gels for better predictability and safety on their clinical usage. <b>Key words:</b>Tooth bleaching, Bleaching agents, Hydrogen-ion concentration, Dentin sensitivity, Hydrogen peroxide.