左側下顎関節突起により顔面の変形及び片側の開口をきたした1例

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In this paper, a case of unilateral condylar hyperplasia in which condylectomy was applied is presented. Report of case A 26 year old woman visited Tokyo Medical and Dental University in 1973 complaining of facial asymmetry and masticatory disturbance. 4 years later, she strongly desired to correct this condition. There was marked facial asymmetry, the left side elongated and flattened with the chin shifted to the right. In occulusion, apertognathia was present on the left side, i. e. about 5 mm distance between upper and lower first molar tooth. She said that the condition was first recognized about 3 years before and developed gradually as was confirmed from past photographs. Radiographic examination showed that the left condylar head was enlarged remarkably as compared with the right condyle, especially to the medio-anterior direction. The left ascending ramus was more elongated than the opposite side. 4 years after the first visit, it became about 5 mm longer. From clinical and radiographic findings, it was diagnosed as facial asymmetry due to unilateral condylar hyperplasia. Condylectomy was done. 5 years after the operation the symmetry of the face was continued and tooth contact was improved. Radiographically, remodelling of the bone might be seen at the edge of the resected ramus.
社団法人日本口腔外科学会の論文