Study on the Effect of Different Application Techniques on Nanohybrid Composite Restorations Clinical Success

Dental composites have been used as a restorative material for a long time. However, they have their limitations. This study evaluated the effect of placement techniques on clinical performance of class I composite resin restorations. A total of 40 patients with split-mouth design participated in this study. Each patient had two fillings according to the placement technique (either bulk or incremental packing) of the composite resin restorations. Group (A): Was packed by Tetric EvoCeram bulk-fill composite resin and Group (B): Was incrementally packed with Tetric EvoCeram composite resin. Restorations of the teeth were evaluated on the same day, one week, 3 months and 6 months to determine any signs of failure according to the modified United States Public Health Service (USPHS) criteria. At different follow-up periods, the results showed no significant differences for retention, marginal integrity, surface stain, gingival bleeding, and secondary caries and there were significant differences for color match, surface texture, and postoperative sensitivity. This study concluded that the nanohybrid composite resins demonstrated excellent clinical performance for 6 months follow up period.