下顎骨に適用したアルミナセラミックスの臨床経過 : 術後合併症の検討

概要

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Alumina ceramics have excellent biocompatibility and have been used as a bone substitute. We used alumina ceramics as artificial jaws for reconstruction of the mandible or as supplements to improve mandibular asmmetry since 1982. The results in 7 patients were satisfactory, but in one patient the alumina ceramic artificial jaw was fractured by stress at operation. We used stainless steel wire for fixation in this case, however, the artificial jaw had to be removed because of loosening of the wire. In two other cases the surgical wound ruptured. The wounds healed after irrigation, administration of antibiotics and surgical treatment. We concluded that stainless steel wire is inappropriate for fixation because of its different properties and alumina ceramic is not subject to infection. In an alumina ceramic prosthesis is chosen after due consideration, a good postoperative course can be expected.