Cention N is a relatively new restorative material that is known to be the first commercially available bioactive resin composite. The manufacturing company recommends using Cention N with 1-step adhesive system in non-retentive cavities, or with no adhesive system in retentive cavity preparations.~This study was designed to evaluate the clinical performance of this material in non-carious cervical lesions by comparing it to RM-GIC (Fuji II LC).~Information about oral and tooth brushing habits along with detailed information about the characteristics of each NCCL, gingival status, and preoperative sensitivity will be collected for each patient.
Evaluating the clinical performance of a bioactive restorative materiel (Cention N) placed in non-carious cervical lesions (NCCLs) with no preparation and 1-step adhesive system or, with preparing a gingival retentive groove and no adhesive system.