Clinical Research Directory

Inclusion Criteria: * Altered passive eruption as presence of quadratic anterior teeth \[crown width/length ratio * 0.85 \]. * Gingival margin located coronal to the tooth cervical convexity and \>2 mm of gingival band display during maximum smile. * Patients with treated periodontal disease (i.e., stage I of periodontitis); Exclusion Criteria: * Patients with systemic contraindications for oral surgery as uncontrolled diabetes. * patients on drug therapy related with drug-associated gingival enlargement. * Areas in which the remaining amount of keratinized gingiva after the submarginal incision is less than 3 mm. * Previous surgical treatment in the same area.