Modified Widman Flap vs Fibre Retention Osseous Resective Surgery

Inclusion Criteria

• •Age ≥ 18 years;
• •Patients affected by periodontitis;
• •No systemic disease or pregnancy;
• •No systemic antibiotic therapy in 6 months preceding the enrollment;
• •Smoking ≤ 20 cigarettes/day;
• •Full-mouth plaque score (FMPS) and full- mouth bleeding score (FMBS) ≤ 15%;
• •Residual periodontal pocket ≥5 mm with bleeding on probing at posterior natural teeth;
• •Experimental pocket associated with a detectable infrabony defect ≤ 3mm at x-ray;
• •No history of periodontal surgery at the experimental site.