Abstract
The purpose of this study was to statistically compare the bone regeneration and/or remodeling that occurred in human periodontal osseous defects treated with frozen allogenic, cancellous, iliac bone and marrow grafts, to defects treated by nongrafted flap curettage using a split-mouth protocol. Six patients were selected to participate in the study. These patients exhibited bilateral intrabony periodontal defects that had been refractory to nonsurgical periodontal therapy. Twenty-three intrabony defects were treated by osseous grafting using allogenic iliac bone and marrow and 32 intrabony defects were treated by open debridement procedures. The bony regeneration in each defect treated was evaluated by probing measurements taken from a fixed reference made at the initial surgery and at reentry 1 year after transplantation. The overall results of this study demonstrated that the percentage of osseous regeneration that occurred in intrabony defects treated by allogenic bone and marrow grafting was statistically greater than that which occurred in defects treated by nongrafted flap curettage procedures.
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