A 6 months study comparing bone graft treatment alone with bone graft plus injectable platelet rich fibrin for treating bone defects around lower molar teeth

INTERVENTION: Intervention1: Injectable Platelet Rich Fibrin with Demineralized Freeze Dried Bone Allograft: Periodontal surgery using injectable platelet rich fibrin with demineralised freeze dried bone allograft for mandibular molar furcation defects Control Intervention1: Demineralized Freeze Dried Bone Allograft: periodontal regenerative surgery using demineralized freeze dried bone allograft alone for Grade II mandibular molar furcation defect CONDITION: Health Condition 1: K053‐ Chronic periodontitis PRIMARY OUTCOME: reduction in probing depth, gain in clinical attachment level, reduction in horizontal furcation depth and radiographic bone fill.Timepoint: Baseline , 3 months and 6 months SECONDARY OUTCOME: nilTimepoint: nil INCLUSION CRITERIA: systemically healthy male and female patients aged 25‐65 years with Grade II mandibular furcation . good oral hygiene maintenance after phase I . no known allergy to the study materials . willing to provide informed consent