Use of xenograft bone with aspirated bone marrow for treatment of cystic defect of the jaws

Xenografts of Kiel bone in combination with autologous aspirated bone marrow were used to graft 20 cystic defects in the jaws. Sixteen cases (80%) were successful. Results were evaluated by clinical and radiographic follow-up of the patient up to 4 years (average 2.3 years) after surgery. Inability to create a water-tight closure followed by immediate secondary infection were considered as the causes for failure rather than rejection by the host.