Clinical Efficacy of Using Bioactive Desensitizer Gel

Inclusion Criteria: * • With ≥1 sensitive tooth and with exposed dentin in the upper or lower dental arches. * Grade IV gingival recession. * Schiff sensitivity score needed to be ≥2, indicating that application of a jet of air makes the patient respond and move or requests discontinuation of the stimuli application. Exclusion Criteria: * • Domestic or in-office fluoride application and bleaching 6 months before beginning of treatment * Long-term use of anti-inflammatory, analgesic and psychotropic drugs. * Allergies to product ingredients * Eating disorders, systemic conditions that cause or predispose patients to develop dentin hypersensitivity (for example, gastroesophageal reflux disease, GERD) * Excessive dietary or environmental exposure to acids. * Orthodontic appliance treatment within the previous three months. * Periodontal surgery within the previous three months before the study