Evaluation in Facial Contour and Maxillofacial Function Following Orthognathic Surgery

正颌手术后面部轮廓和颌面功能的评估

• 批准号: 62570896
• 负责人: IIZUKA Tadahiko
• 金额: $ 1.28万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-62570896/
• 关键词: Maxillary Osteotomy; Sagittal Splitting Osteotomy; Nasal Height; Gonial Angle; Maxillofacial Function; Joint Murmur; Joint Pain; 術後形態予測; Le Fort I型骨切り術; 下口唇知覚異常; 関節部痛; 下顎前突症; 術後予測; 上顎前方歯槽骨切り; 鼻尖点; 鼻下点

1. Surgical changes in soft tissue profile after Le Fort I type osteotomy were cephalometrically evaluated in patients with minimum 1 year follow-up. Nasal angle and nasal height were reduced in their values because of larger amount of advancement of Sn than that of Prn. By maxillary anterior segmental osteotomy, nasal height was not reduced and Sn was remarkably brought anteriorly in comparison with posterior movement of Prn which could be nearly disregarded.2. Surgical changes of gonial angle and ramus inclination were cephalometrically evaluated in 45 patients with mandibular prognathism. The gonial angle and ramus in clination were improved with the mean values of 4.3 and 4.5 degree respectively. These results showed that the sagittal splitting osteotomy of the mandibular ramus plays great role in improvement of the obtuse gonial angle in the patient with mandibular prognathism. A new technique for two- and three-dimensional prediction of soft and hard tissue contour was developed using plaster cast of the mandubular dental arch, occlusal splint and computer graphic system.3. A questionnare study was made in 178 patients with mandibular deformities operated by sagittal splitting osteotomy, anterior segmental osteotomy and genioplasty for evaluation on masticatory function, sensory disturbance of the lower lip and temporomandibular joint function. 80.2% of the patients was satisfied in masticatory function and sensory disturbance was disappeared in 50% of the patients within 1 year postoperatively. 37.9% of the patients operated by sagittal splitting osteotomy complained of the disturbance in 2 years postoperatively. The joint pain at jaw movement was observed in 38.7% of the patients by the osterotomy immediately after releasing intermaxillary fixation and disappeared completely in all of the poerated cases after 3 years postoperatively.

1.在至少1年随访的患者中，通过头影测量评估Le Fort I型截骨术后软组织轮廓的手术变化。鼻角和鼻高的数值减小，因为Sn的前移量大于Prn。结论：1.上颌前部截骨术，鼻高度不降低，鼻根明显前移，鼻根后移，鼻根几乎可游离.对45例下颌多颌畸形患者手术前后下颌角及升支倾斜度的变化进行了头影测量。下颌前角和下颌升支倾斜度平均分别改善4.3 °和4.5 °。结果表明，下颌升支矢状劈开截骨术对改善下颌前突患者的下颌角有重要作用。利用下颌牙弓石膏模型、咬合板和计算机图形系统，建立了一种新的软硬组织轮廓的二维和三维预测技术.对178例下颌骨畸形患者行矢状劈开截骨术、前牙段截骨术和颏成形术，对患者的咀嚼功能、下唇感觉障碍和颞下颌关节功能进行了问卷调查。术后1年内咀嚼功能满意率为80.2%，感觉障碍消失率为50%。37.9%的矢状劈开截骨术患者在术后2年内主诉有关节功能障碍。38.7%的患者在松解颌间固定后即刻行截骨术时出现下颌运动时关节疼痛，术后3年全部消失。

项目成果

Mitsuo Nishida: "Studies on Cephalometric Prediction for Surgical Corrction of Mandibular Prognathism Part III. Cephalometric evaluation of Various methods for Prediction of Soft Tissue Profile in Ortho-gnathic Surgery for Mandibular Prognathism" Jpn. J.

Mitsuo Nishida：“下颌前突手术矫正的头影测量预测研究第三部分。下颌前突正颌手术中软组织轮廓预测的各种方法的头影测量评估”Jpn。

Masahisa Iwanaga: "Cephalometric Evaluation of Soft Tissue Profile following Le Fort I Type Osteotomy" Bull. Jap. Soc. Jaw Deform.6. 148-151 (1987)

Masahisa Iwanaga：“Le Fort I 型截骨术后软组织轮廓的头影测量评估”公牛。

廣岡康博, 飯塚忠彦他: 顎変形症研究会誌. 6. 175-178 (1987)

Yasuhiro Hirooka、Tadahiko Iizuka 等人：《颌畸形研究会杂志》6. 175-178 (1987)。

広岡康博 他: 日本顎変形症研究会誌. 8. 10-13 (1988)

Yasuhiro Hirooka 等人：日本颌畸形研究会杂志 8. 10-13 (1988)。

飯塚忠彦: 日本顎変形症研究会誌. 8. (1989)

饭冢忠彦：日本下颌畸形研究会杂志 8。（1989）。