CBCT评价下颌第三磨牙引导管与阻生状态的研究

doi:10.13701/j.cnki.kqyxyj.2020.09.006

口腔医学研究 ›› 2020, Vol. 36 ›› Issue (9): 821-824.DOI: 10.13701/j.cnki.kqyxyj.2020.09.006

CBCT评价下颌第三磨牙引导管与阻生状态的研究

刘培, 王芳, 李波, 魏丽丽, 程勇^*

武汉大学口腔医学院放射科,湖北省口腔基础医学重点实验室-省部共建国家重点实验室培育基地和口腔生物医学教育部重点实验室湖北武汉 430079

收稿日期:2020-02-14 出版日期:2020-09-28 发布日期:2020-09-15
通讯作者: *程勇,E-mail: chengyong-125@163.com
作者简介:刘培(1994~),男,山东济宁人,硕士在读,主要从事口腔颌面部医学影像学临床及基础的研究。
基金资助:
国家自然科学基金(编号:81500878)

Shape of Gubernacular Canals in Relation to Impaction of Mandibular Third Molars Assessed by CBCT

LIU Pei, WANG Fang, LI Bo, WEI Lili, CHENG Yong^*

The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, Department of Radiology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China

Received:2020-02-14 Online:2020-09-28 Published:2020-09-15

摘要/Abstract

摘要： 目的: 采用CBCT评价下颌第三磨牙引导管的形态,探究其与阻生状态的关系,为预测第三磨牙是否阻生提供依据。方法: 选取76例下颌第三磨牙的CBCT影像资料,测量其引导管长径、短径、长短径之比及其与牙胚长轴的角度,并对测量数据进行统计分析。结果: 不同阻生状态下颌第三磨牙的引导管之间,长径、短径和长短径之比无统计学差异,与牙胚长轴的角度:正常萌出>近中阻生>水平阻生。下颌第三磨牙引导管的长径、短径及其与牙胚长轴的角度与年龄相关。结论: CBCT可以精确评价引导管形态,不同阻生状态的第三磨牙引导管与牙胚长轴的角度不同。引导管的缺失和/或与牙胚长轴的角度异常,提示牙齿可能出现萌出异常。

Abstract: Objective: To evaluate the shape of gubernacular canals (GCs) and its relation to impaction of mandibular third molars by CBCT. Methods: 76 CBCT image data of mandibular third molars were included. The long diameter, short diameter, ratio of them, and angulation of GCs to tooth axis were measured and analyzed. Results: There was no statistical difference in long diameter, short diameter, and ratio of them between the groups. The angulation of GCs to tooth axis: normal eruption > mesioangular impaction > horizontal impaction. The long diameter, short diameter, and angulation of GCs to tooth axis were related to the age in mandibular third molars. Conclusion: CBCT can accurately measure the shape of GCs. The angulation of GCs to tooth axis differs in mandibular third molars with different impactions. The absence of GCs, and/or an abnormal angle to the long axis of the tooth may suggest the abnormal eruption.

Key words: cone-beam computed tomography, mandibular third molar, gubernacular canal, impaction

刘培, 王芳, 李波, 魏丽丽, 程勇. CBCT评价下颌第三磨牙引导管与阻生状态的研究[J]. 口腔医学研究, 2020, 36(9): 821-824.

LIU Pei, WANG Fang, LI Bo, WEI Lili, CHENG Yong. Shape of Gubernacular Canals in Relation to Impaction of Mandibular Third Molars Assessed by CBCT[J]. Journal of Oral Science Research, 2020, 36(9): 821-824.

参考文献

[1] 张志愿.口腔颌面外科学[M].北京: 人民卫生出版社, 2012.
[2] 贺平,冯瑜,吴晓乐,等.超声骨刀拔除下颌第三磨牙断根效果评价[J].口腔医学研究,2019,35(4):368-371.
[3] 秦立业,周忠伟.全景片对下颌智齿与下牙槽神经毗邻关系精确性判断的研究进展[J].口腔医学研究,2019,35(4):319-321.
[4] Hodson JJ. The gubernaculum dentis [J]. Dent Pract Dent Rec,1971,21(12):423-428.
[5] Oda M, Nishida I, Miyamoto I, et al. Significance and usefulness of imaging characteristics of gubernaculum tracts for the diagnosis of odontogenic tumors or cysts [J]. PLoS One, 2018, 13(7):e199285.
[6] Oda M, Miyamoto I, Nishida I, et al. A spatial association between odontomas and the gubernaculum tracts [J]. Oral Surg Oral Med Oral Pathol Oral Radiol,2016,121(1):91-95.
[7] Broomell IN. Anatomy and histology of the mouth and teeth [M]. Philadelphia, PA: Blakiston,1989.
[8] Scott JH, Symons NBB. Introduction to dental anatomy [M]. Edinburgh, Scotland: Livingstone,1964.
[9] Ide F, Mishima K, Kikuchi K, et al. Development and growth of adenomatoid odontogenic tumor related to formation and eruption of teeth [J]. Head Neck Pathol, 2011, 5(2):123-132.
[10] Nishida I, Oda M, Tanaka T, et al. Detection and imaging characteristics of the gubernacular tract in children on cone beam and multidetector computed tomography [J]. Oral Surg Oral Med Oral Pathol Oral Radiol, 2015, 120(2):e109-e117.
[11] Oda M, Nishida I, Miyamoto I, et al. Characteristics of the gubernaculum tracts in mesiodens and maxillary anterior teeth with delayed eruption on MDCT and CBCT [J]. Oral Surg Oral Med Oral Pathol Oral Radiol, 2016, 122(4):511-516.
[12] Koc N, Boyacioglu Dogru H, Cagirankaya LB, et al. CBCT assessment of gubernacular canals in relation to eruption disturbance and pathologic condition associated with impacted/unerupted teeth [J]. Oral Surg Oral Med Oral Pathol Oral Radiol, 2019, 127(2):175-184.
[13] Scott JH. The development and function of the dental follicle [J]. Br Dent J, 1948, 85(9):193-199.
[14] Gaêta-Araujo H, Da Silva M B, Tirapelli C, et al. Detection of the gubernacular canal and its attachment to the dental follicle may indicate an abnormal eruption status [J]. Angle Orthod, 2019, 89(5):781-787.
[15] 贾俊,古力巴哈·买买提力, 祖丽胡马尔·努尔艾合买提,等.正畸治疗对第三磨牙萌出的影响及相关预测方法[J].口腔医学,2020,40(2):157-160.
[16] Bhadana S, Indushekar KR, Saraf B, et al. Comparative assessment of chronological, dental, and skeletal age in children [J]. Indian J Dent Res, 2019, 30(5):687-691.

CBCT评价下颌第三磨牙引导管与阻生状态的研究

Shape of Gubernacular Canals in Relation to Impaction of Mandibular Third Molars Assessed by CBCT

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