周洪,1957年出生1983年西安医科大学口腔医学系毕业,现任西安医科大学口腔医学院正畸教研室主任,副教授。

    摘 要 目的:研究在正畸治疗中影响唇形态及位置变化的因素。方法:通过对双颌前突的成年女性正畸治疗前后的X-线头影测量片的软组织形态的比较分析,寻求影响唇的形态变化的临床因素。

    结果:上下唇的突度平均减少2.38mm和2.22mm,鼻唇角的平均变化为99.53到111.26度,下下唇长度也平均增加1.38mm和4.60mm,而唇的厚度则无明显的改变。

    讨论:唇形态的变化不仅受到前牙移动的影响,而且与年龄、性别和唇本身结构等诸多因素有关。

    关键词 正畸学 口唇变化

    STUDY THE EFFECTING REASONS OF LIP CHANGES DURLNG THE

    ORTHODONTIC TREATMENT

    Zhou Hong Ye XiangyuDepart.Orthodentics.Stomatological Hospital,Xian Medical University

    Abstract Aim:to study the effecting reasons of lip changes during the orthodontic treatment.Method:Using the soft tissue analysis with the pre-and post cephalometric films to compare the changes in adult female with bimaxillary malocclusion.Results:the upper and lower projecting lip were reduced in 2.38mm and 2.22mm individually.The Nasolabial angle changed from 99.53 to 111.26 degrees.The length of upper and lower lips has been increased 1.38mm and 4.60mm respectively.However,the thickness of lips has no changes obviously.Discussion:The morphology of lip has been influenced no only by the retraction of incisors,but also by age,sex and structure of itself. ......