Assessment of Peroxide Level in Saliva During Teeth Bleaching With 9.5% Hydrogen Peroxide Gel

Assessment of peroxide level in saliva during teeth bleaching with 9.5% hydrogen peroxide gel using a tray with reservoir versus a tray without reservoir. A randomized clinical trial

Inclusion Criteria:participants:Good general health.Adult patients aged 18-40 years.Absence of non-carious cervical lesions, active caries, gingival recession, or periodontal disease.Do not use orthodontics appliance or removable prosthesis.teeth:Maxillary anterior teeth without caries, restorations and/or endodontic treatment.Mild generalized staining.Exclusion Criteria:participants:Smoking or alcohol dependent patients.Pregnancy and lactating women.Parafunctional habits or pathologies.Periapical alterations.Use of medicaments that alter salivary flow.Patients who had already undergone tooth bleachingPatients with severe internal tooth discoloration as tetracycline stain, fluorosis or endodontic treatment.teeth:Tooth hypersensitivity.Presence of cracks or fractures.Periodontal affection sign and symptoms.