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细长型髁突增生病下颌骨及下颌神经管位置CT形态学研究 被引量：2

CT morphology of mandibular bone and mandibular nerve canal in hemimandibular elongation
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摘要 目的应用CT进行细长型髁突增生病(HE)下颌骨解剖学及下颌神经管形态学研究,为临床治疗提供参考。方法对19例HE患者进行多层CT扫描,采用Mimics 10.0软件进行三维重建,在不同断面重建图像,进行下颌神经管、下颌孔和骨皮质测量,并与无下颌骨病变的对照组进行比较。结果在第一磨牙中心长轴断面的舌侧、第二磨牙中心长轴的颊侧及上缘、磨牙后区中心至下颌角连线断面的颊侧、上缘及下缘、下颌孔下缘下5 mm处水平位断面的舌侧、前缘及后缘,2组下颌神经管外缘距下颌骨表面距离的差异具有统计学意义(P<0.05);在第一磨牙颊侧和下缘,2组下颌骨骨皮质厚度的差异具有统计学意义(P<0.05);2组下颌孔至下颌升支前缘及下颌骨下缘距离的差异具有统计学意义(P<0.05)。结论细长型髁突增生病骨皮质厚度从下颌第一磨牙到下颌升支在各个方向均逐渐减小。与正常颌骨相比,下颌神经管在下颌第二磨牙及磨牙后区偏颊侧并靠上方,下颌孔在升支内侧较靠前并偏低。 Objective To study morphology feature of mandibular anatomical characteristics and mandibular nerve canal of hemimandibular elongation（HE） using CT,and provide reference for the clinical treatment.Methods 19 patients with HE were scanned using multidetector CT.Mimics 10.0 software was used for three-dimensional recon-struction,and CT images were reconstructed on different sections.The position of mandibular nerve canal,mandibular foramen and thickness of mandibular cortical bone were measured,and compared with control group（without mandibular lesion）.Results Compared with the control group,the distance between mandibular nerve canal and mandibular sur-face were statistically different at the section of long axis of mandibular first molar centre（LAMFM）-lingual,long axis of mandibular second molar centre（LAMSM）-buccal,LAMSM-superior,retromolar area centre to the mandibular angle（RAC-MA）-buccal,RAC-MA-superior,RAC-MA-inferior and horizontal level of mandibular foramen under 5 mm（HLMFU5）-lingual,HLMFU5-anterior,HLMFU5-posterior（P〈0.05）;the thickness of mandibular cortical bone were statistically different at the LAMFM-buccal,LAMFM-inferior（P〈0.05）;lowest point of mandibular foramen（LPMF）superior border of mandibular ramus（SBMR） and LPMF-inferior border of mandibular ramus（IBMR） were statistically different（P〈0.05）.Conclusion In the patients with hemimandibular elongation,the thickness of mandibular cortical bone gradually decreases in all directions from the mandibular first molar to the mandibular ramus.Compared with the control group,mandibular nerve canal located buccally and superiorly at mandibular second molar and retromolar area,mandibular foramen located more anterior and lower inside mandibular ramus.
作者 张桂梅 王涛 毛晓斌 杨东昆
机构地区 重庆医科大学附属口腔医院口腔颌面外科
出处 《华西口腔医学杂志》 CAS CSCD 北大核心 2012年第2期152-155,共4页 West China Journal of Stomatology
基金 重庆市渝中区科技计划基金资助项目(20080311) 重庆市渝北区科委计划基金资助项目[渝北财教(2010)29号]
关键词 髁突增生病 下颌前突 下颌孔 下颌神经管 condylar hyperplasia mandibular protrusion mandibular foramen mandibular nerve canal
分类号 R782.2 [医药卫生—口腔医学]
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共引文献66

同被引文献25

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华西口腔医学杂志
2012年 第2期

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