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

Our study evaluated and compared the clinical performance and durability of Bulk fill composite versus conventional incremental posterior composite filling in class I posterior composite resin restorations bonded with self-etch adhesive strategies. Sixty-nine patients were randomly selected, their age range from 20 to 50 years old. They were divided into two main groups according to the packing technique of composite material; incremental Tetric Evoceram and Tetric Evoceram bulk fill composite. Sixty nine patients (n=69) were selected for incremental Tetric Evoceram composite restorations. 69 patients (n=69) were selected for Tetric Evoceram bulk fill composite restorations, resulting in a total of 138 restorations bonded with self-etch adhesive system in a split mouth technique. Clinical performance assessed at 6 months and 1 year using FDI criteria through visual inspection by two expert assessors. Our results revealed that in two groups; clinical performance of all restorations in the two groups showed clinically excellent / very good condition after 6 months. But after 12 months, regarding nano-hybrid incremental packing technique group; there was a statistically significant change in color match criteria after 12 months. There was a decrease in prevalence of excellent / very good condition and an increase in prevalence of clinically sufficient / satisfactory condition. As results showed a slight mismatch in color after 1 year within the normal range of the adjacent tooth structure. While in Bulk fill group, there was no statistically significant change in color match criteria after 12 months

Issued also as CD