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

OBJECTIVE

The objective of this study is to examine the behavior and volumetric changes of periodontal tissues in teeth with cervical non-carious lesions associated with gingival recession and treated with composite resin restorations using conventional and biologically oriented preparation techniques (BOPT) after 12 months of clinical service.

MATERIAL AND METHODS

A prospective clinical study was conducted to compare the gingival changes following the treatment of non-carious cervical lesions using composite resin and the BOPT approach (test group) with those restoring only the NCCL with a conventional restoration with composite (control group). The pre-treatment and 12-month post-treatment records included the following variables: plaque index (PI), gingival index (GI), gingival recession, probing depth, intraoral scan, and digitally calculated gingival thickness. The pre- and post-treatment scan files were subjected to software analysis to compare the dimensional gingival changes that occurred following treatment in both groups.

RESULTS

A one-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<0.001). Additionally, the change in gingival thickness was -0.16 ± 0.23 mm in the control teeth and 0.35 ± 0.15 mm in BOPT teeth (P< 0.001). 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.

CONCLUSIONS

The BOPT technique, associated with cervical composite restorations for non-carious lesions, produces a recovery of the gingival tissue. There was a significant coronal gingival migration, as well as a horizontal thickening of the gingiva around the cervical emergence of the restoration. The BOPT approach using composite resins to treat NNCL is a predictable technique that offers biological advantages to the surrounding gingiva and achieves gingival stability.