华西口腔医学杂志

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正畸-正颌联合治疗骨性Ⅲ类错的稳定性研究

王旭霞1 张君1 张文娟2 李娜1 史洪涛3   

  1. 1.山东大学口腔医院正畸科, 山东济南250012;2.山东中医药大学附属医院口腔科, 山东济南250013;3.胜利油田石油管理局胜北医院口腔科, 山东东营257064
  • 收稿日期:2009-02-25 修回日期:2009-02-25 出版日期:2009-02-20 发布日期:2009-02-20
  • 通讯作者: 张君,Tel:0531-88382070

A stability study of hard tissue changes in patients with skeletal Class Ⅲ malocclusion after orthodonticorthognathic treatments

WANG Xu-xia1, ZHANG Jun1, ZHANG Wen-juan2, LI Na1, SHI Hong-tao3   

  1. 1. Dept. of Orthodontics, School of Stomatology, Shandong University, Jinan 250012, China; 2. Dept. of Stomatology, Teaching Hospital, Shandong University of Traditional Chinese Medicine, Jinan 250013, China; 3. Dept. of Stomatology, Shengbei Hospital of Shengli Oil Field, Dongying 257064, China
  • Received:2009-02-25 Revised:2009-02-25 Online:2009-02-20 Published:2009-02-20
  • Contact: ZHANG Jun,Tel:0531-88382070
  • About author:王旭霞(1962-),女,山东人,副教授,博士

摘要:

目的探讨经正畸-正颌联合治疗的骨性Ⅲ类错畸形患者在矫治前和手术后不同时期颌面部硬组织角度的变化,评估治疗效果的长期稳定性。方法选取24例骨性Ⅲ类错畸形患者,在矫治前(T0),正颌手术后3个月(T1)、术后1年(T2)和术后3年(T3)拍摄X线头颅定位侧位片,测量反映颌面部硬组织变化的16项角度指标,比较矫治前和正颌手术后不同时期这些指标的变化情况。结果1)T1与T0的比较:除N-S-Ar、N-S-Ba、N-S-Go、NBa-PtGn以及Y轴角的变化很小,其差异无统计学意义外(P>0.05),其余11项指标的变化均有统计学意义(P<0.05)。2)T2与T1的比较:SNPo、U1-SN的变化有统计学意义(P<0.05),其余指标的变化均无统计学意义(P>0.05)。3)T3与T1的比较:仅U1-SN变化明显(P<0.05)。4)T3与T2的比较:所有测量项目的变化均很轻微,其差异均无统计学意义(P>0.05)。结论经正畸-正颌联合治疗后,骨性Ⅲ类错畸形患者的硬组织测量角度在术后3个月到术后1年期间即术后正畸治疗阶段存在一定程度的变化,但并未对手术效果产生根本影响。

关键词: 错畸形, 骨性Ⅲ类, 正畸-正颌治疗, 头影测量

Abstract:

Objective The purpose of this study was to analyze the changes of hard tissues at each treatment stage in patients with skeletal Class Ⅲ malocclusion after orthodontic-orthognathic surgery, and to assess the longterm stability after treatment. Methods 24 patients with skeletal Class Ⅲ malocclusion were selected. Standardized  lateral cephalograms at the following stages were taken for each patient: Before treatment(T0), 3 months after surgery (T1), 1 year after surgery(T2), 3 years after surgery(T3). A total of 16 hard tissue landmarks were selected and evaluated at different stages. SPSS 12.0 soft ware was used to study the changes of the hard tissues. Results 1)Comparison of angles between stage T0 and T1, except N-S-Ar, N-S-Ba, N-S-Go, NBa-PtGn and Y axis, other discrepancies all had statistical significances. 2)Comparison of angles between stage T1 and T2, only SNPo and U1-SN had significant differences. 3)Comparison of angles between stage T1 and T3, only U1-SN had an obvious change. 4)Comparison of the angles between stage T2 and T3, all angle changes had no statistical significance. Conclusion From three months to one year after surgery, the hard tissue angles varied more or less, but that did not essentially affect the surgery results. It is concluded that the orthodontic-orthognathic treatment of skeletal Class Ⅲ malocclusion had a long-term stability.

Key words: malocclusion, skeletal Class Ⅲ, orthodontic-orthognathic treatment, cephalometry