上海交通大学学报（医学版）

上海交通大学学报（医学版）

• 论著（临床研究） • 上一篇    下一篇

细长型髁突增生病的下颌骨三维外形指数测量与分析

胡鸿涛，王超，何金龙，米欢，陈姚地，王涛   

  1. 重庆医科大学附属口腔医院，口腔疾病与生物医学重庆市重点实验室，重庆市高校市级口腔生物医学工程重点实验室，重庆 401147
  • 出版日期:2016-12-28 发布日期:2016-12-29
  • 通讯作者: 王涛，电子信箱：taosan@126.com。
  • 作者简介:胡鸿涛（1987—），男，住院医师，硕士生；电子信箱：562894289@qq.com。
  • 基金资助:

    重庆市科学技术委员会计划基金(〔2010〕29)

Measurement and analysis of indexes of mandibular three-dimensional shape in patients with hemimandibular elongation

HU Hong-tao, WANG Chao, HE Jin-long, MI Huan, CHEN Yao-di, WANG Tao   

  1. Stomatolgical Hosipital of Changqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China
  • Online:2016-12-28 Published:2016-12-29
  • Supported by:

    Foundation of Chongqing Science and Technology Commission,〔2010〕29

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摘要：

目的 ·利用下颌骨三维外形指数（IM3DS）分析细长型髁突增生病患者的下颌骨形态特征，计算正常与异常的各项参考值范围。方法 ·以细长型髁突增生病患者（病变组，n=46）和正常人（对照组，n=46）作为研究对象，将CBCT数据以DICOM医学数字图像通讯标准存储，使用Mimics15.0进行下颌骨三维重建，定点标记，对相关测量项目进行统计学分析。结果 ·对照组两侧测量值的差异无统计学意义（P>0.05）。病变组的病变侧髁突宽度、髁突颈宽度、髁突高度、下颌升支长度、下颌体长度、磨牙区高度、半侧下颌骨体积、髁突体积、下颌升支体积、下颌体后部体积均显著大于正常侧（P<0.05），其余项目的差异无统计学意义（P>0.05）。所得IM3DS 1～6正常参考值范围分别为：0.579 7～0.827 1，0.532 3～0.708 7，0.137 7～0.200 0，0.140 5～0.189 5，0.138 7～0.142 7，0.060 6～0.080 2。异常参考值范围分别为：0.386 2～0.709 2，0.335 1～0.658 1，0.016 6～0.304 0，0.100 2～0.190 0，0.096 8～0.160 4，0.091 4～0.141 6。结论 ·细长型髁突增生病患者的下颌骨体积的增长，以下颌升支及下颌体后部为主，其增长趋势与正常下颌骨的生长发育趋势基本一致。IM3DS能够对髁突增生病患者的下颌骨外形进行快速、有效的评价，从而明确病变范围和程度，为临床诊治提供参考和指导。

关键词: 细长型髁突增生病, 下颌骨, 三维测量, 外形指数

Abstract:

Objective · To analyze the morphological characteristics of mandibula for patients with hemimandibular elongation using the indexes of mandibula three-dimensional shape (IM3DS) and calculate reference ranges for normal and abnormal mandibula. Methods · 46 patients with hemimandibular elongation (the disease group) and 46 normal controls (the control group) were included in this study. Cone-beam computed tomography (CBCT) data were stored according DICOM medical digital image communication standard. Mandibula three-dimensional reconstruction was performed using Mimics 15.0. The location marks were used to measure line distance and volume of mandibula, and the results were statistically analyzed. Results · There was no statistical difference in measurements between two groups (P>0.05). For the disease group, the lesion side had significantly greater measurements of WC, WN, HC, LAR, LHR, HM1, HAC, VT, VC, VAR, VB2, and VB3 than the normal side (P<0.05). The differences in other indexes were not statistically significant (P>0.05). Obtained reference ranges for normal mandibula with IM3DS between 1 and 6 were 0.579 7-0.827 1, 0.532 3-0.708 7, 0.137 7-0.200 0, 0.140 5-0.189 5, 0.138 7-0.142 7, and 0.060 6-0.080 2. Reference ranges for abnormal mandibula were 0.386 2-0.709 2, 0.335 1-0.658 1, 0.016 6-0.304 0, 0.100 2-0.190 0, 0.096 8-0.160 4, and 0.091 4-0.141 6. Conclusion · The increase in the volume of mandibula in patients with hemimandibular elongation is mainly at mandibular ascending branch and back of mandibular body with the same development trend as normal mandibula. IM3DS can rapidly and effectively evaluate mandibular shape for patients with hemimandibular elongation, so as to clarify lesion range and degree and provide references and guidance for clinical diagnosis and treatment.

Key words: hemimandibular elongation, mandibula, three-dimensional measurement, index of shape