Inclusion Criteria: clinical diagnosis of multiple gingival recessions with at least one gingival recession ≥ 2 mm, including canines and premolars; (2) Miller class I and II gingival recession areas; (3) non-abrasive, erosive or carious root surfaces (4) unrotated, non-extruded and non-movable teeth (5) systemically healthy patients without contraindication to periodontal surgical procedures -