Restoration of Non-carious Cervical Lesions With Different Resin Composites and Universal Adhesive

Inclusion Criteria: \- Patients' age will range from 18 to 65 years. * Presence of at least 2 NCCLs in one side. * Patients with no medical condition could interfere with the routine dental care. * Patients who will be able to attend for each recall visit. * Patients with healthy periodontal tissues. * Cavities presenting no more than 50% of margins in enamel. Exclusion Criteria: * Medically compromised patients. * Pregnant or breast-feeding patients. * Patients undergoing orthodontic treatment or bleaching treatment in the time of the study. * Patients with periodontal disease in the target area. * Patients presented with less than 20 teeth in the oral cavity. * Patients without antagonists. * Lesions superimposed with caries