【摘要】 对１５例上颌前部骨切开后退术患者的手术前后Ｘ线头影测量进行研究，结果显示软组织鼻底点Ｓｎ，上唇凹点Ａ＇分别以上齿槽座点Ａ的３７％和６３％向后移动，上唇突点Ｌｓ以上中切牙切缘点Ｉｓ的７５％向后移动。同时还分析求得了施行该术式后软硬组织变化的相关关系和回归方程。更多还原

【Abstract】 The soft tissue profile response to anterior maxillary osteotomy for anterior maxillary excess patients was evaluated. Soft tissue change to hard tissue change ratios as well as linear regression equation were calculated from a patient pool representing fifteen anterior maxillary osteotomies. The soft tissue profile response to anterior maxillary osteotomy appeared to be predictable. The results led to the following abbreviated conclusion: posterior movement of subspinale was accompanied by posterior movement of 37% (r=0.73) at subnasale, 63% (r=0.87) at superior labial sulcus. Posterior movement of incision superius was accompanied by posterior movement of 75% (r=0.86) at labrale superius.更多还原