Treatment of single maxillary gingival recession associated with non‐carious cervical lesion: Randomized clinical trial comparing connective tissue graft alone to graft plus partial restoration

摘要

Abstract Background Gingival recession (GR) is frequently associated with non‐carious cervical lesion (NCCL) forming a combined defect (CD). The aim of this study was to evaluate a new multidisciplinary protocol for CDs. Methods Forty patients presenting 40 Miller's Class I or II GR defects associated with B+ tooth cervical defect were randomly allocated to one of the following treatments: test group ( n ?=?20), partial restoration (PR) of the NCCL, in which the apical border of the restoration was placed 1?mm beyond the cement–enamel junction estimation, and connective tissue graft (CTG?+?PR) and Control Group ( n ?=?20), odontoplasty of the NCCL and connective tissue graft (CTG). Clinical, aesthetic and patient‐centred outcomes were evaluated. Results After 12?months, CD coverage rates were 75.3% (2.5?±?1.0?mm) for CTG?+?PR and 74.6% (2.4?±?1.1?mm) for CTG ( p ??0.05). The estimated complete root coverage was 60% ( n ?=?12) for CTG?+?PR and 70% ( n ?=?14) for CTG. CTG?+?PR resulted in significantly better dentin hypersensitivity (DH) reduction ( p ?=?0.034). Both groups resulted in aesthetic improvements; however, the CTG?+?PR group showed better gingival contour results. Conclusions CTG and CTG?+?PR were effective to treat CD. Use of PR resulted in better gingival margin contour and DH reduction, without effect on CD coverage by CTG. (NCT02817763).