Impact of Root Surface Conditioning With Erythritol Air Polishing and Hand Instrumentation on Recession Coverage Using the Modified Tunnel Technique and Subepithelial Connective Tissue Graft.
Impact of Root Surface Conditioning With Erythritol Air Polishing Versus Hand Instrumentation on Recession Coverage Using the Modified Tunnel Technique and Subepithelial Connective Tissue Graft: A Randomized Clinical Trial
Medical University of Warsaw
20 participants
Mar 9, 2026
INTERVENTIONAL
Conditions
Summary
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.
Eligibility
Inclusion Criteria5
- 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)
- Age ≥ 18 years
Exclusion Criteria8
- 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
- Active periodontitis
- Use of medications affecting periodontal tissues or wound healing, including systemic corticosteroids, immunosuppressants, isotretinoin, bisphosphonates, and monoclonal antibodies with immunosuppressive, antiresorptive, or antiangiogenic effects
- Smoking
- Pregnancy or breastfeeding
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Interventions
Root surface preparation performed using erythritol powder air-polishing (EMS AIRFLOW PLUS) prior to root coverage surgery with a modified tunnel technique and subepithelial connective tissue graft.
Mechanical root surface preparation performed using manual Gracey curettes before root coverage surgery with a modified tunnel technique and subepithelial connective tissue graft.
Locations(1)
View Full Details on ClinicalTrials.gov
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NCT07403006