Inclusion Criteria:  ≥18 years periodontally and systemically healthy presence of at least two consecutive Cairo type I (RT1) gingival recession defects recession >2mm in depth at the buccal aspect full-mouth plaque and bleeding score ≤20% no previous periodontal surgery; presence of identifiable cemento-enamel junction (CEJ) (a step 1mm at the CEJ and/or presence of root abrasion, but with identifiable CEJ, will be accepted).  Exclusion Criteria:  smokers >10 cigarettes a day contraindications for periodontal surgery medications known to affect the gingiva or interfere with wound healing pregnancy and lactating females active orthodontic therapy caries or restorations in the area to be treated. Patients unable to follow post-surgical medication instructions adequately.