国际口腔医学杂志 ›› 2011, Vol. 38 ›› Issue (6): 656-658.doi: 10.3969/j.issn.1673-5749.2011.06.010

• 论著 • 上一篇    下一篇

下颌功能性正中偏移与上颌第一磨牙牙龈萎缩的关系

赖依玲  汪永跃  宫苹   

  1. 四川大学华西口腔医院种植科   成都   610041
  • 收稿日期:2010-10-22 修回日期:2011-08-17 出版日期:2011-11-20 发布日期:2011-11-20
  • 通讯作者: 宫苹,Tel:028-85501427
  • 作者简介:赖依玲,2009 级台湾籍博士研究生

The relationship between functional mandibular deviation and gingival recession of maxillary first molar

Lai Yiling, Wang Yongyue, Gong Ping.   

  1. Dept. of Implantation, West China Hospital of Stomatology, Sichuan University,Chengdu 610041, China
  • Received:2010-10-22 Revised:2011-08-17 Online:2011-11-20 Published:2011-11-20

摘要:

目的     观察中线偏移与第一磨牙牙龈萎缩的关联性。方法    选取32 例无缺牙、无颞下颌关节功能紊乱,第一磨牙位于牙弓的正确位置上且没有偏向颊侧或腭侧的患者,制取上下颌印模,上颌模型以面弓转移至第三类架上,并以正中关系记录将模型固定于架上。观察下颌从正中关系位到牙尖交错位之间的运动途径,检测是否有下颌中线偏移,并测量上颌第一磨牙腭侧牙龈萎缩的程度。结果   有中线偏移者15 例,没有中线偏移者17 例。上颌第一磨牙的腭侧牙龈萎缩者18 例,没有萎缩者14 例。以相关系数的公式统计计算得到2项变量的相关系数为0.828,显示2 项变量有高度相关性。结论   下颌功能性正中偏移与上颌第一磨牙牙龈萎缩有高度相关性。

关键词: 下颌功能性正中偏移, 牙龈萎缩, 正中关系位

Abstract:

Objective To figure out the relationship between mandiblular midline deviation and gingival recession of maxillary first molar. Methods 32 cases with no losing teeth, no temporomandibular disorders, and the tooth erupts right on the arch(buccal version or lingual version should be excluded) were included. We take an alginate impression, and pour the cast with hard die-stone. Then we make a facebow transfer to set the maxillary cast on Class Ⅲ articulator, and mounting mandibular cast with centric relation bite registration. At last, we record the direction from centric relation to maximum intercuspation, and measure the palatal gingival recession of maxillary first molar. Results Among the 32 cases we have been studied on, there are 15 cases that have suffered from mandibular midline deviation and the rest 17 cases have not. There are 18 cases that have suffered from the palatal gingival recession of maxillary first molar, and the rest 14 cases have not. The correlation coefficient to determine the relationship between these two data is 0.828. It demonstrated that the 2 variables have high relevance. Conclusion Based on this finding, there is a big correlation between mandibular midline deviation and gingival recession of maxillary first molar.

Key words: mandibular midline deviation, gingival recession, centric relation

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