DFDBA is an allograft that possesses osteoconductive and osteoinductive properties. It has the potential for osteoinduction due to increased expression of bone morphogenetic protein (BMP).Cerabone™ has shown maximum resemblance to human bone with the potential to reconstruct bone defects. Decortication is performed as a part of guided bone regeneration (GBR) procedure as it enhances the healing process.Therefore a combination of decortication and bone graft when applied in periodontal intrabony defect would enhance the regeneration of periodontium.