OBJECTIVE To use the criteria set by the American Dental Association to evaluate the effectiveness of nightguard vital bleaching with 10% carbamide peroxide through a controlled randomized clinical trial. MATERIALS AND METHODS Fifty volunteers allocated to either an experimental group(Opalescence PF 10%; OPA) or a control group (placebo; PLA) used a gel for 21 days. Observations of tooth colo...

INTRODUCTION A number of vital pulp therapy techniques have been recommended to preserve pulp vitality in teeth with complicated crown fractures, especially in young patients. Calcium hydroxide has been the gold standard as a pulp capping material, but recently mineral trioxide aggregate (MTA) has been recommended. This case report describes the treatment of tooth discoloration caused by white ...

Three different application times of hydrogen peroxide and heat were used to evaluate removal of tetracycline stains from vital teeth of dogs and to evaluate histologic changes in the pulp tissue. Fifteen-, 30-, and 45-min treatments were applied at 2-week intervals for 4 consecutive treatments. The animals were sacrificed at 13, 62, and 92 days following the final bleaching treatment. The pulp...

INTRODUCTION Tooth bleaching is based on hydrogen peroxide application. The Objective of this study was to determine whether dental bleaching agents affect metalloproteinases-mediated dentin collagen degradation. METHODS Human dentin specimens were subjected to different treatments: (1) untreated dentin; (2) demineralization by 37% phosphoric acid (PA); (3) demineralization by 37% PA, followe...