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Bleaching Effectiveness and Tooth Sensitivity of Inoffice Hydrogen Peroxide Containing Titanium Dioxide Based Bleaching Agent: A Systematic Review

Seema Yadav

Tooth bleaching is considered to be conservative, noninvasive and cost effective treatment modality in regards to esthetic consideration. Inoffice bleaching is one of the types of vital bleaching. Most current office bleaching products contains high concentration of hydrogen peroxide which in turn has various deleterious effects on tooth structure, pulp tissues and mucosal tissues of the mouth. In addition, the high concentration often causes postoperative dentin hypersensitivity. In view of the safety, lower concentration of bleaching agent is desirable. Recently visible light activating Titanium dioxide has been introduced as photo catalyst which lowers the concentration of hydrogen peroxide by accelerating its breakdown thereby enhancing the rate of bleaching. The aim of this systematic review is to know the influence of lower percentage of hydrogen peroxide on the bleaching efficacy and tooth sensitivity in TiO2 containing inoffice bleaching agent in randomized clinical trials.