Department of Orthodontics (Head: Prof. Dr. Nil Cura), Faculty of Dentistry, Istanbul University, Istanbul, Turkey.
J Craniomaxillofac Surg. 2010 Mar;38(2):113-21. doi: 10.1016/j.jcms.2009.03.009. Epub 2009 May 17.
The aim of this study was to determine the changes in head posture and hyoid bone position after mandibular setback osteotomy in Turkish adult Class III patients. Serial lateral cephalograms of 42 Turkish Class III patients (24 female, 18 male patients, mean age: 25.4+/-1.2 years) who underwent mandibular setback surgery were evaluated preoperatively, 1.2+/-0.6 years, 2.3+/-0.8 and 4.2+/-0.9 years postoperatively. A mean mandibular setback of 5.6+/-0.8mm was associated with a posterior and inferior movement of the hyoid bone and a significant flexion in the neck posture. Surgical correction of mandibular prognathism altered the position of the hyoid bone by downward repositioning carrying the root of the tongue downwards immediately postoperatively, but followed with a tendency to return to its original position.
本研究旨在探讨土耳其成年 III 类错颌患者下颌后退术后头部姿势和舌骨位置的变化。对 42 例土耳其 III 类错颌患者（女性 24 例，男性 18 例，平均年龄：25.4+/-1.2 岁）行下颌后退手术，分别于术前、术后 1.2+/-0.6 年、2.3+/-0.8 年和 4.2+/-0.9 年拍摄侧位头颅定位片。平均下颌后退 5.6+/-0.8mm，舌骨向后向下移动，颈曲明显前倾。下颌骨前突矫正术后，舌骨因受牵拉向下移位，即刻将舌根向下带，术后即刻即出现向下再复位的趋势。
