@article{oai:mdu.repo.nii.ac.jp:00000686,
 author = {中村, 弘之 and 西本, 雅弘 and 芦澤, 雄二 and 出口, 敏雄 and 栗原, 三郎},
 issue = {1},
 journal = {松本歯学},
 month = {Apr},
 note = {application/pdf, Surgical orthodontic treatment by means of costochondral graft was performed on a 15-year-old female with severe micrognathia and hypoplasia of the condyle and ramus. This patient had undergone arthroplasty at bilateral temporomandibular joint-ankyloses. With regard to the pretreatment, other orthodontic findings included skeletal openbite, steep antero-posterior inclination of maxillary occlusal plane, and crowding. Presurgical orthodontic treatment was accomplished by the extraction of 4 first premolars over about 2 years. Costochondral graft, double-stepped genioplasty and Le Fort I osteotomy were performed for reconstruction of condyle-ramus units as well as restoration of the temporomandibular joint function, advancement of the mandible and counter-clockwise rotation of the maxilla. These procedures produced marked improvement of the severe skeletal deformities. After surgery, however, a small amount of relapse was observed which seemed to be attributable to both backward rotation in the tension of the soft tissue and the instability of replaced condyles. During the postsurgical orthodontic treatment, the mandible was mainly stretched toward the upward and forward directions by using class II and up & down elastics for 23 months. In this treatment, although the costochondral graft was carried out after the adolescent growth period, lengthening of calcified images of bilateral transplanted grafts on lateral cephalograms was recognized. As results of this therapy, the occlusion and profile in this patient were significantly improved, and the restored conditions have been maintained during the 1 year after the beginning of retention.},
 pages = {36--46},
 title = {肋骨肋軟骨移植により関節突起部を再建した外科矯正の一治験例},
 volume = {26},
 year = {2000}
}