• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dental Press Journal of Orthodontics >Dentofacial characteristics of patients with Angle Class I and Class II malocclusions
【24h】

Dentofacial characteristics of patients with Angle Class I and Class II malocclusions

机译：I级和II级安氏错牙合畸形患者的颌面特征

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

OBJECTIVE: The present study assessed some cephalometric measurements of the soft tissue profile in order to observe the behavior of facial convexity in patients with Class I, Class II division 1, and Class II division 2 malocclusions. METHODS: One hundred and thirty pre-treatment teleradiographs of Caucasian patients aged 10-16 years (mean age of 12.6 years) were selected for study and divided into 3 groups. The cephalometric measurements used in the present study were the following: H.SN, Cx, NLA, MLA, UL-SUL-S, LL-S, IMPA, and 1-SN. Analysis of variance and Tukey's test were applied for measurements H.SN, Cx, IMPA, 1-SN, MLA, and NLA, whereas Kruskal-Wallis and Dunn's tests were applied for UL-S and LL-S. RESULTS: The results showed statistically significant differences for the measurements H.SN, Cx, UL-S, and IMPA between Groups I, II-1 and II-2 (p < 0.05). Measurements LL-S and MLA showed statistically significant difference between Groups I and II-1 only (p < 0.05). On the other hand, no statistically significant differences were found for measurement NLA among the 3 groups (p < 0.05). CONCLUSION: Regarding facial characteristics expressed by measurements H.SN, Cx, and UL-S, one could conclude that Class II division 1 and Class II division 2 malocclusions, both differed from Class I malocclusion. In addition, Class II division 1 malocclusion was found to have facial characteristics expressed by MLA, which differentiate it from the Class II division 2 and Class 1 malocclusions. Class I, Class II division 1 and Class II division 2 malocclusions showed no difference in facial characteristics expressed by the measurement NLA, and measurement LL-S was directly related to eversion of the lower lip.
机译：目的：本研究评估了一些头颅测量的软组织轮廓，以观察I类，II类1级和II类2级错牙合患者的面部凸出行为。方法：选择一百三十名年龄在10至16岁（平均年龄为12.6岁）的白人患者的放射线照相术进行研究，并将其分为3组。本研究中使用的头颅测量方法如下：H.SN，Cx，NLA，MLA，UL-SUL-S，LL-S，IMPA和1-SN。方差分析和Tukey检验用于H.SN，Cx，IMPA，1-SN，MLA和NLA的测量，而Kruskal-Wallis和Dunn检验用于UL-S和LL-S。结果：结果显示，I，II-1和II-2组之间的H.SN，Cx，UL-S和IMPA测量值存在统计学差异（p <0.05）。测量值LL-S和MLA仅显示I组和II-1组之间的统计学显着性差异（p <0.05）。另一方面，三组之间在测量NLA方面没有发现统计学上的显着差异（p <0.05）。结论：关于通过测量H.SN，Cx和UL-S表示的面部特征，可以得出结论，II类1分类和II类2分类错牙合均不同于I类错牙合。此外，发现II级1类错牙合具有由MLA表达的面部特征，这与II类2级和1级错牙合有区别。 I级，II级1级和II级2级错牙合没有显示测量NLA表示的面部特征差异，测量LL-S与下唇外翻直接相关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号