This study aims to evaluate whether the method of root surface preparation influences surgical outcomes. It will assess whether manual root instrumentation can be replaced by a less invasive erythritol air-polishing technique.
Multiple RT1 and/or RT2 gingival recessions, symmetrical and bilateral, with a minimum height of ≥ 1 mm
Full-mouth plaque score (FMPS) < 15% (assessed on four surfaces per tooth)
Full-mouth bleeding on probing (FMBOP) < 15% (assessed on four surfaces per tooth)
Detectable cemento-enamel junction (CEJ)
RT3 gingival recessions
Gingival recessions affecting second and third molars
Systemic or infectious diseases that may impair wound healing, including active malignancy, diabetes mellitus with HbA1c > 7.0%, history of head and neck radiotherapy, true xerostomia, and HIV/AIDS
Cervical caries, non-carious cervical lesions, or Class V restorations interfering with the CEJ