Abstract
The purpose of this study to evaluate the temperature for cold detection in teeth during of the bleaching with 10% carbamide peroxide, with or without potassium oxalate. For this, 25 volunteers carefully selected will receive the two types of treatment, and that in a upper hemiarch will be used 10% Powerbleaching product containing potassium oxalate and the other 10% Opalescence. The blea…