Radiographic Evaluation of Adaptation of Universal Adhesives

Class 2 restorations are analyzed to see whether or not the use of modified universal adhesive will result in similar adaptation to conventional universal adhesive.

Inclusion Criteria: * Small to moderate carious proximal lesions. (International caries detection and assessment system (ICDAS) scores 3,4) * Good oral hygiene (mild to moderate plaque accumulation) * Vital teeth with no signs of irreversible pulpitis. * Presence of favorable occlusion and normal contact with adjacent teeth. Exclusion Criteria: * Patients with systemic diseases, severe medical complications or allergic history concerning methacrylates. * Lack of patient compliance, pregnancy, rampant caries, heavy smoking or xerostomia. * Evidence of parafunctional habits and tempromandibular joint disorders. * Deep carious defects (close to pulp, less than 1 mm distance). * Teeth with signs and symptoms of irreversible pulpitis or pulp necrosis. * Endodontically treated teeth. * Tooth hypersensitivity. * Possible prosthodontic restoration of teeth. * Heavy occlusion and occlusal contacts or history of bruxism. * Severe periodontal affection.