Periodontal Behavior of Teeth with Noncarious Cervical Lesions Restored with a New BOPT Approach Using Composite Resin: A 1-Year Prospective Clinical Study.

This clinical study aimed to examine the behavior and volumetric changes of periodontal tissues in teeth with noncarious cervical lesions (NCCLs) associated with gingival recession and treated with composite resin restorations using conventional and biologically oriented preparation techniques (BOPT) after 12 months of clinical service. A prospective clinical study was conducted to compare the gingival changes following the treatment of NCCLs with composite resin using the BOPT approach (test group) vs a conventional approach (control group). The pretreatment and 12-month posttreatment records included the following variables: Plaque Index (PI), Gingival Index (GI), gingival recession, probing depth, intraoral scans, and digitally calculated gingival thickness. The pre- and posttreatment scan files were subjected to software analysis to compare the dimensional gingival changes that occurred following treatment in both groups. A 1-year follow-up revealed a coronal gingival migration of 0.38 ± 0.49 mm in the control group and 1.16 ± 0.73 mm in the BOPT group (P < .001). Additionally, the change in gingival thickness was -0.16 ± 0.23 mm in the control group and 0.35 ± 0.15 mm in the BOPT group (P < .001). The periodontal parameters evaluated at baseline were found to be comparable between the two groups. Following treatment by both techniques, the periodontal health status remained unaltered. The BOPT approach associated with cervical composite restorations for NCCLs produces recovery of the gingival tissue. There was significant coronal gingival migration as well as horizontal thickening of the gingiva around the cervical emergence of the restorations. The BOPT approach using composite resin is a predictable technique for treating NCCLs that offers biologic advantages to the surrounding gingiva and achieves gingival stability.