Thesis (Ph.D)-Cairo University - Faculty of Oral and Dental Medicine

Bibliography: p. 185-191.

This study was conducted to assess the clinical performance of injection-molded bulk fill composite and incrementally packed conventional composite, considering their respective cavity designs and curing techniques, in moderate-sized proximal cavities of permanent molars. Patients were randomly divided into two equal groups where each patient received either a conventionally packed proximal restoration or an injected molded one. After pre-operative assessment and operative field preparation, cavities of the injection-molding group were finished to the recommended internal trumpet-shape outline and beveled circumferentially to infinity keeping all margins in enamel. Cavities of the conventional group, on the other hand, were saucer shaped with no circumferential beveling. Beveled cavities received injection molded restoration of pre-heated bulk-fill composite; while non-beveled cavities were filled incrementally with a conventional composite. Restorations were finished and polished, and patients were scheduled for follow-up assessment appointments at 48 hours, one week (T0), 3 months (T1), 6 months (T2), 9 months (T3), and 12 months (T4).