Postoperative Changes of the Frontal Facial Soft Tissues in Patients with Mandibular Prognathism and Mandibular Deviation
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概要
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This study was designed to evaluate the morphological changes of the frontal facial soft tissue in prognathic patients with mandibular deviation who had undergone One-jaw or Two-jaw surgery. The subjects were divided into two groups: Group 1 (Two-jaw group) consisted of 18 skeletal Class M female patients who had undergone Le Fort I osteotomy and Sagittal Splitting Ramus Osteotomy (SSRO). Group 2 (One-jaw group) comprised 18 skeletal Class HI female patients treated by only SSRO.<BR>A pair of pre-and post-operative standardized frontal facial photos were used for soft tissue analysis.<BR>The angular and linear measurements of the nose, lip, and lower facial lines were studied on the standardized frontal facial photos.<BR>The results obtained were as follows:<BR>1. The quantity of postoperative Me deviation significantly decreased in the Two-jaw surgery group.<BR>2. No change in the nose width was observed in the One-jaw surgery group, while the nose width was significantly increased after surgery in the Two-jaw surgery group. Asymmetric nose width before surgery changed to the symmetric one after surgery in the Two-jaw surgery group.<BR>3. Lip width was significantly increased in the Twojaw group after surgery. The difference in the lip width between deviated and non-deviation sides was decreased in both groups after surgery. Asymmetric lip width before surgery improved in both groups after surgery.<BR>4. The lip line and the lower facial line improved to a more suitable inclination after surgery in both groups.
- 特定非営利活動法人 日本顎変形症学会の論文
特定非営利活動法人 日本顎変形症学会 | 論文
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