Numerous case reports and controlled clinical trials indicate that autogenous bone grafts can be used successfully in periodontal therapy. New attachment is possible with different types of autogenous bone grafts. Root resorption and ankylosis may be observed only following grafts of fresh iliac cancellous bone and marrow. Both FDBA and DFDBA have been shown to be clinically effective. Bone formation may be enhanced if GTR is augmented with bone grafts...