Effect of 1.5% Potassium Oxalate on the Control of Tooth Sensitivity and Color Change After Home Bleaching

Inclusion Criteria: * individuals aged 18 to 29 years of both sexes with chroma greater than A2 in the upper incisors and canines, in the Vita Classical color scale; * absence of active caries lesions * patients who had never undergone bleaching therapy; * good oral hygiene and no hypersensitivity to tactile and evaporative stimuli through the Visual Analog Pain Scale; Exclusion Criteria: * patients undergoing fixed orthodontic treatment; * patients with darkened non-vital teeth and/or with extensive restorations in molars; * presence of cracks or fractures; * patients allergic to the product, with the presence of gastroesophageal disorders and with dentinal exposure in anterior and/or posterior teeth.