Abstract
The in-office tooth bleaching may cause some tooth sensitivity due to pulp changes provided by the H2O2 penetration into the pulp. To minimize these symptoms many dentists use NSAIDs, such as ibuprofen, as well as topical desensitizing gels based on 5% potassium nitrate and 2% sodium fluoride. The aim of this study is to evaluate the influence of these substances in expression of neuropep…