40 intra-bony defects in 40 patients will be selected from outpatient clinic of Oral Periodontology Clinic Faculty of Dentistry, Tanta University to participate in this study. Each defect had intra-bony depth > or = 4 mm and probing pocket depth (PPD) > or = 6 mm. Patients will be randomly assigned to either test or control group. 20 patients will be treated by surgery plus biodegradable gelatin/beta-tricalcium phosphate sponges alone.~(control group), the other 20 patients will be treated with the same surgical technique plus biodegradable gelatin sponge loaded with Beta-tricalcium phosphate socked in concentrated growth factors (test group).~Gingival index (GI), bleeding on probing, Probing pocket depth and clinical attachment level (CAL) will assessed at baseline, 3, and 6 months at the site to be treated. Cone beam radiographs evaluation will be taken at baseline, and 6 months after surgery.
This clinical study aimed to evaluate the efficacy of biodegradable gelatin sponge loaded with Beta-tricalcium phosphate socked in concentrated growth factors in the treatment of periodontal intra-bony defects, as compared with biodegradable gelatin/beta-tricalcium phosphate sponges alone.