基于CBCT的后段牙合平面和下颌骨形态间相关性研究

doi:10.13701/j.cnki.kqyxyj.2019.11.017

口腔医学研究 ›› 2019, Vol. 35 ›› Issue (11): 1078-1083.DOI: 10.13701/j.cnki.kqyxyj.2019.11.017

基于CBCT的后段牙合平面和下颌骨形态间相关性研究

刘之奥¹, 徐卫华², 郑之峻^3*

1. 贵州医科大学贵州贵阳 550000;
2. 贵州医科大学附属口腔医院正畸科贵州贵阳 550000;
3. 贵阳市口腔医院正畸科贵州贵阳 550000

收稿日期:2019-03-30 出版日期:2019-11-28 发布日期:2019-11-21
通讯作者: 郑之峻,E-mail:82207963@qq.com
作者简介:刘之奥(1992~ ),男,湖北宜昌人,硕士在读,主要从事口腔正畸临床工作。

Correlation between Posterior Occlusal Plane and Mandibular Morphology: A CBCT Study

LIU Zhiao¹, XU Weihua², ZHENG Zhijun^3*

1. Guizhou Medical University, Guiyang 550000, China;
2. Stomatology Hospital, Guizhou Medical University, Guiyang 550000, China;
3. Department of Orthodontics, Stomatology Hospital of Guiyang, Guiyang 550000, China

Received:2019-03-30 Online:2019-11-28 Published:2019-11-21

摘要/Abstract

摘要： 目的: 用CBCT研究后段牙合平面角(POP)和下颌骨形态间的相关性。方法: 从患者影像资料库中选取71例符合纳入标准正畸患者的CBCT影像资料,使用InVivo Dental Software测量牙合平面和颌骨形态并输出数据,将数据导入SPSS 25.0对数据进行Pearson’s 积矩相关系数(r)检验,检验水平为α=0.05。结果: (1)上颌第二前磨牙高度(U5 Ht)和前下面高正相关,(2)POP和Co-Go,Co-Gn以及Go-Gn负相关,(3)POP和关节结节高度(AE Ht)负相关,(4)POP和U5 Ht相关性无统计学意义,POP和上颌第二磨牙高度(U7 Ht)呈负相关。结论: (1)控制U7 Ht是整平POP的关键;(2)在POP较大的人群中,下颌骨形态多较小且位置靠后,下颌骨处于后旋状态;(3)POP与AE Ht之间有较强的负相关性,且两者可以共同影响下颌骨的形态和功能。

关键词: 牙合平面, 后段牙合平面, 下颌骨形态, CBCT

Abstract: Objective: To explore the correlation between posterior occlusal plane (POP) and mandibular morphology by CBCT measurement. Methods: 71 participants were included from imaging database according to the inclusion criteria. The POP and mandibular morphology were measured, and the data were exported to SPSS Ver.25 in which the correlation between both measurements were calculated. Results: (1) The second premolar height (U5 Ht) was positively correlated with PAFH; (2) POP was negatively correlated with Co-Go, Co-Gn and Go-Gn; (3) POP was negatively correlated with articular eminence height; (4) POP was correlated with upper second molar height (U7 Ht), but not significantly correlated with U5 Ht. Conclusion: (1) One main reason for steep POP was decreased U7 Ht which was consequently the key to level the OP; (2) In steep POP group, the mandible was small, retruded and rotated in a backward orientation; (3) Steep POP was strongly correlated with short AE Ht which could alter the morphology and function of mandible in a synergic way.

Key words: occlusal plane, posterior occlusal plane, mandibular morphology, CBCT

刘之奥, 徐卫华, 郑之峻. 基于CBCT的后段牙合平面和下颌骨形态间相关性研究[J]. 口腔医学研究, 2019, 35(11): 1078-1083.

LIU Zhiao, XU Weihua, ZHENG Zhijun. Correlation between Posterior Occlusal Plane and Mandibular Morphology: A CBCT Study[J]. Journal of Oral Science Research, 2019, 35(11): 1078-1083.

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基于CBCT的后段牙合平面和下颌骨形态间相关性研究

Correlation between Posterior Occlusal Plane and Mandibular Morphology: A CBCT Study

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