摘要
目的:探讨临床双颌手术治疗骨性Ⅲ类错后软组织的变化,以及软组织随硬组织变化的相关性。方法:选择进行双颌手术的骨性Ⅲ类错患者29例,通过对手术前及手术后摄取的X线头颅侧位定位片头影测量分析,研究双颌手术后的软硬组织变化。结果:鼻下点无显著变化。上唇厚度和凸度变化均有统计学意义(P<0.05).下唇及颏部所有软组织标志点均有显著变化(P<0.001)。鼻部软组织与骨组织移动为弱相关性或无相关性(r<0.6)。上唇与上颌切牙变化呈高度显著相关(r>0.8)。除了下唇,所有下颌软组织标志点与骨组织移动呈高度显著相关(r>0.8)。结论:鼻部软组织与骨组织移动的相关性差。上唇变化主要受上切牙位置移动的影响,受其他硬组织移动影响相对小。下唇与骨组织相关性不强。颏部软组织与硬组织移动呈高度显著相关性,为预测术后软组织变化提供参考。
Objective： To predict soft tissue changes through study the changes and the correlation ratio between !＇ soft and hard tissue in skeletal class I~ patients treated by bimaxillary surgery. Methods： 29 patients with skeletal class Ⅲ who underwent bimaxillary surgery were included. A cephalometric study of pre-- and post-- operation was undertaken to evaluate the correlation between soft and hard tissue change. Results： Point of Sn remaind mostly un- changed. The thickness and the convexity of upper lip underwent a slight changed （P,~0.05）. There were signifi- cant differences between pre--and post--surgery for almost all variables in lower lip and chin （P〈~0. 001）. The weak or poor correlations included the landmarks which were located at the nasal tip （r,~0.6）. The correlation be- tween soft and incisor movements for corresponding landmarks was the highest （r〉0.8）. Apart from lower lip, all mandibular soft tissue landmark were strongly correlated with hard tissue landmarks （r〉 0.8）. Conclusion： The correlation between nasal tip and hard tissue was poor. The correlation of upper lip to incisal was more significant than other hard tissue. The moderate correlation occurred for the landmark in the lower lip. The high correlation occurred for landmark in the chin, which should help to predict the change of the soft tissue after the surgery.
出处
《口腔医学研究》
CAS
CSCD
北大核心
2011年第7期568-570,574,共4页
Journal of Oral Science Research
关键词
骨性Ⅲ类双颌手术软组织相关性
Skeletal class Ⅲ Bimaxillary surgery Soft tissue Correlation
