Clinical Evaluation Comparing Tunneled Coronally Advanced Flap and Modified Coronally Advanced Tunnel With Connective Tissue Graft for Managing Single Gum Recession

Inclusion Criteria: * Patients with single RT2 gingival recession defect ≥ 2 mm * Age \>18 years old. * Systemically healthy patients with no contraindications for periodontal surgeries. * Gingival and plaque index less than 20%. * No previous surgeries at the defect site. * Accepts 6 months follow-up period (compliant patients). Exclusion Criteria: * RT1 gingival recession. * Smokers \>10 cigarettes a day a contraindicating for any plastic periodontal surgery. * Poor oral hygiene. * Active periodontitis patients. * Patients on medications causing gingival enlargement. * Pregnancy. * Teeth mobility ≥ 1 mm. * Patients using fixed or removable orthodontic appliances. * Restoration and/or periapical radiolucency at the defect site.