Ｏｓｓｅｏｉｎｔｅｇｒａｔｅｄ ｉｍｐｌａｎｔの顎顔面領域への応用 第３報 上顎腫よう切除後の顎顔面補綴について

Abstract

Six cases who had received maxillectomy or orbital exenteration were treated with maxillofacial prostheses using osseointegrated implants. The results were as follows:1. The patients included 4 males and 2 females, ranging in age from 40 to 78 years.2. The primary disease was maxillary squamous cell cancer in 5 cases and maxillary ameloblastoma in 1 case.3. Two of the malignant tumor patients had wide maxillary defects. In 2 cases there were orbital defects, and in 1 case orbital and maxillary defects remained. The 1 benign tumor patient had a hemimaxillary defect.4. Seventeen fixtures were installed in the maxillary region, and 16 fixtures were osseointegrated. Nine flange fixtures were placed in the supraorbital region and all fixtures were osseointegrated. The success rate was 94.2 % in the maxilla and 100% in the orbital region.5. Stability of the prosthesis was improved remarkably by implants, enhancing both speech and masticatory function. Cosmetic improvement was also remarkable using facial prostheses retained by this implant system.