The Influence of Local Antibiotic Therapy on the Outcomes Following Periodontal Regeneration Procedures.

Forty generally healthy adults diagnosed with stage III periodontitis were randomly divided into two groups. In the test group, SRP was performed with the subsequent application of local antibiotics (10% doxycycline) into periodontal pockets at the site of the planned surgical intervention, while in the control group SRP was performed alone. Two weeks after, on the day of the surgical treatment, the M-MIST/MIST procedure was performed in both the test and control groups with the use of enamel matrix derivative (EMD). Clinical examination was performed before and 6 and 12 months after treatment. For radiological measurements RVG was performed. For inflammation mediators levels determination in GCF samples ELISA method will be used. For microbiological assessments Real Time PCR method will be used.

Inclusion criteria

-presence of an intrabony defect, with a pocket depth (PD) ≥ 6 mm and a radiological defect depth of ≥3 mm and width of ≥2 mm;

Exclusion criteria

• periodontal treatment within 3 months prior to the study;
• antibiotic therapy within 3 months prior to the study;
• smoking; presence of systemic diseases affecting periodontal healing, i.e.: immunosuppressive diseases, diabetes, osteoporosis, AIDS, hypertension treated with calcium channel blockers;
• use of steroids or other immunosuppressive drugs;
• pregnant and breastfeeding women