Lew K K
Orthodontics, Faculty of Dentistry, National University of Singapore.
Int J Adult Orthodon Orthognath Surg. 1993;8(2):123-8.
In a sample of 28 Chinese adults (aged 24.2 +/- 3.1 years) who underwent anterior mandibular subapical osteotomy for the correction of Class III malocclusions, the interaction among intermaxillary space, tongue position, and hyoid bone variables were quantified retrospectively using pretreatment and posttreatment lateral cephalograms. Lateral cephalograms taken at the early (5 to 7 days) postsurgical period showed that the intermaxillary space decreased. The hyoid bone also moved inferiorly, while the tongue was displaced posteriorly and superiorly. The late (2 years) postsurgical lateral cephalograms showed that the hyoid bone and tongue position normalized to the pretreatment positions. These changes demonstrate the ability of the hyoid bone and tongue structures to adapt to changes in the intermaxillary space following osteotomy.
在28名接受下颌前部根尖下截骨术以矫正III类错牙合畸形的中国成年人样本（年龄24.2±3.1岁）中，使用术前和术后的头颅侧位片对颌间间隙、舌位置和舌骨变量之间的相互作用进行了回顾性定量分析。术后早期（5至7天）拍摄的头颅侧位片显示颌间间隙减小。舌骨也向下移动，而舌头向后上方移位。术后晚期（2年）的头颅侧位片显示舌骨和舌位置恢复到术前位置。这些变化表明舌骨和舌结构在截骨术后能够适应颌间间隙的变化。
