下颌骨颏孔前区解剖结构的锥形束CT研究

doi:10.19438/j.cjoms.2017.01.003

中国口腔颌面外科杂志 ›› 2017, Vol. 15 ›› Issue (1): 11-15.doi: 10.19438/j.cjoms.2017.01.003

下颌骨颏孔前区解剖结构的锥形束CT研究

曲哲, 胡艳君, 马岚³, 张翔¹, 韩文利⁴, 李振春⁵

1.大连市口腔医院种植科,辽宁大连 116021;
2.杭州口腔医院,浙江杭州 310006;
3.荆门市第一人民医院,湖北荆门 448001;
4.大连市口腔医院放射科,5.修复科,辽宁大连 116021

出版日期:2017-01-20 发布日期:2017-02-27
通讯作者: 李振春,E-mail:yantu2007@163.com
作者简介:曲哲（1977-）,男, 博士,主任医师,E-mail:quzhekq@outlook.com;胡艳君（1990-）,女,硕士,住院医师, E-mail:odelia8232@sohu.com。#并列第一作者
基金资助:
人力资源和社会保障部归国人员启动基金（2011508）; 辽宁省教育厅高校科研项目（2008027）; 大连市民生科技项目（2013E15SF169）

Characteristics of the anatomical structures observed on cone beam CT images in the mandibular interforminal region

QU Zhe¹, HU Yan-jun², MA Lan³, ZHANG Xiang¹, HAN Wen-li⁴, LI Zhen-chun⁵

1.Implant Center, Dalian Stomatological Hospital. Dalian 116021, Liaoning Province;
2.Hangzhou Stomatological Hospital. Hangzhou 310006, Zhejiang Province;
3.Jingmen No.1 People's Hospital. Jingmen 448001, Hubei Province;
4.Department of Radiology,5.Department of Prosthodontics, Dalian Stomatological Hospital. Dalian 116021, Liaoning Province, China

Online:2017-01-20 Published:2017-02-27

摘要/Abstract

摘要： 目的通过锥形束CT（CBCT）分析下颌骨颏孔前区颌骨内的重要解剖结构,提出下颌颏孔前区种植相关手术的安全区域。方法选取104例患者的CBCT图像资料,观察颏管、下颌切牙管、下颌舌侧管和舌侧孔。对数据进行描述性分析,计算均数和标准差。采用SPSS 19.0软件包对数据进行统计学分析。结果颏管的发生率为55.29%,平均长度为1.12 mm。舌侧孔及舌侧管的发生率为94.23%,直径平均值为1.77 mm。从下颌第二前磨牙至中切牙,下颌切牙管距唇（颊）侧骨板的距离均小于距舌侧骨板的距离。结论建议在颏孔前区种植手术或者颏部取骨时,以双侧颏孔前缘6 mm以上,唇侧骨厚度（取骨时）3 mm以内为安全界限;而在下颌前牙区种植时,种植体长度不超过14 mm。

关键词: 颏管, 下颌切牙管, 下颌舌侧孔, 锥形束CT

Abstract: PURPOSE: This study was aimed to analyze the anatomical structures in the mandibular interforminal region by cone-beam CT (CBCT), and provide recommendations to the surgeon about a new safe surgical margin in this region. METHODS: A total of 104 CBCT radiographs were obtained, the mental canal, mandibular incisive canal, mandibular lingual foramen and its bony canal were measured on CBCT. The mean value and standard deviations were calculated. The data were analyzed with SPSS19.0 software package. RESULTS: The mental canal was visible in 55.29% of the scans, and the mean length was 1.12 mm.The lingual foramen and its canal were visible in 94.23% of the scans, and the mean length was 1.77 mm. The distances from the incisive canal to buccal plate were smaller than to lingual plate. CONCLUSIONS: In the absence of CBCT scans, the new relative safe margins should be a distance of at least 6 mm between the anterior border of the mental foramen and the most distal interforaminal implant fixture or bone harvest site; the maximum bone harvest depth is suggested to be 3 mm and implants length should be less than 14 mm in the placement of the anterior mandible implant.

Key words: Mental canal, Mandibular incisive canal, Mandibular lingual foramen, Cone beam CT

中图分类号:

R782.1

曲哲, 胡艳君, 马岚, 张翔, 韩文利, 李振春. 下颌骨颏孔前区解剖结构的锥形束CT研究[J]. 中国口腔颌面外科杂志, 2017, 15(1): 11-15.

QU Zhe, HU Yan-jun, MA Lan, ZHANG Xiang, HAN Wen-li, LI Zhen-chun. Characteristics of the anatomical structures observed on cone beam CT images in the mandibular interforminal region[J]. China J Oral Maxillofac Surg, 2017, 15(1): 11-15.

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下颌骨颏孔前区解剖结构的锥形束CT研究

Characteristics of the anatomical structures observed on cone beam CT images in the mandibular interforminal region

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