Esthetics of Dental Composite and Adhesive System

Inclusion Criteria: * Sensible tooth -responds to cold or electric pulp testing (done at screening) * Patient 18years of age or old * Current radiograph available (done at screening as needed) * A pair of the same type of restorations needed in the anterior esthetic/facial region (tooth #4-#13). Exclusion Criteria: * Fewer than 20 teeth * Advanced untreated periodontal disease or recent periodontal surgery * Rampant uncontrolled caries activity * Bruxism or clenching and visible wear facets on the occlusal surface * Undergoing or in need of TMJ therapy * Known allergy to methacrylate-based materials or product ingredients * History of poor dental visit attendance * Not available for recall for at least 3 years * Fractured or visibly cracked tooth * Poor oral hygiene * Sensitive tooth or currently using desensitizing treatments, pastes or medicaments * Pregnant * Abutment teeth for prostheses * Teeth considered for restoration are non-vital, have had root canal therapy or been pulp capped * Teeth or supporting structures with any symptomatic pathology or extensive caries lesion * Individual supervised by PI or supervised by member of research team * Individual subordinate to the PI or subordinate to any member of the research team * Student or trainee under the direction of the PI or under the direction of a member of the research team