1989 Volume 35 Issue 6 Pages 1487-1495
This paper reports on reconstructive surgery with aluminum oxide prosthesis performed on three hemimandibulectomy cases. Secondary reconstruction was performed on two cases earlier affected with central fibroma or odontogenic calcifying cyst, and the third was operated on immediately after hemimandibulectomy as treatment for dentigerous cyst.
The shapes and sizes of the prostheses had been designed by means of analysis of X-ray photographs and computed tomography, and the prosthesis was fixed to the mandible by aluminum oxide screws.
The postoperative course of each case showed fine prosthesis stability and improved facial appearance. In the immediate reconstruction case, the function of the temporomandibular joint was well preserved, and the occlusion shows only a slight change.
From the viewpoint of prognosis with aluminum oxide prosthesis and with consideration to the postoperative scar and the preexisting malocclusion in the secondary operated cases, immediate reconstruction is regarded as superior to the secondary operation.
Although aluminum oxide has the properties of good tissue acceptance and chemical stability to the bone tissue, shapes and sizes of the prosthesis should be carefully designed, and well managed fixation is indispensable.