口腔医学研究

口腔医学研究 ›› 2016, Vol. 32 ›› Issue (4): 402-404.DOI: 10.13701/j.cnki.kqyxyj.2016.04.021

• 临床研究论著 • 上一篇    下一篇

光学相干断层成像技术对牙本质成像及其厚度定量测量的研究

席巧玲1*,李俊1,李冬冬1,陈振宇1,丁江峰2   

  1. 1. 深圳市第三人民医院口腔科 广东 深圳 518000;
    2. 深圳市南山区人民医院 广东 深圳 518000
  • 收稿日期:2015-12-07 出版日期:2016-04-28 发布日期:2016-04-28
  • 通讯作者: 席巧玲,E-mail:tintinxql@126.com
  • 作者简介:席巧玲(1982~ ),女,湖北人,主治医师,硕士,主要从事口腔内科的临床治疗工作。
  • 基金资助:
    广东省科技科技计划项目(编号:2014A020212473)广东省医学科学技术研究基金项目(编号:A2015606)

Assessment of Optical Coherence Tomography in the Imaging and Measuring the thickness of Dentin.

XI Qiao-ling1, LI Jun1, LI Dong-dong1, CHEN Zhen-yu1, DING Jiang-feng2   

  1. 1. The 3rd People’s Hospital of Shenzhen, Shenzhen 518000, China;
    2. Nanshan People’s Hospital of Shenzhen, Shenzhen 518000, China
  • Received:2015-12-07 Online:2016-04-28 Published:2016-04-28

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被引次数

1

摘要： 目的:研究光学相干断层成像(OCT)技术对牙本质的成像及量化测定能力。方法:磨除20颗下颌中切牙舌侧釉质,显微CT扫描并构建牙齿三维数字模型,标记每颗牙齿舌侧面牙本质最薄处为a点并测量该位点牙本质厚度,OCT扫描相同位点处,获取牙本质OCT影像,并测量对应牙本质厚度。测量结果采用Student’s t检验及相关回归分析。结果:同一位点牙本质厚度OCT测量值显著大于显微CT测量值(P=0.004),但两者间呈显著正相关联(R2=0.9877,P＜0.05)。结论:OCT可以用来对髓腔表面牙本质厚度进行无创定量测定。

关键词: 光学相干断层成像技术, 牙本质, 定量测量

Abstract: Objective: To evaluate the feasibility of optical coherence tomography (OCT) in imaging and measuring the thickness of dentin. Methods: The lingual enamel of 20 mandibular incisors was removed, then scanned by Micro-CT and reconstructed in three dimensions. The thinnest dentin in the lingual site was marked as point a, and the corresponding dentin thickness was recorded. An OCT was used to scan the same spot and measure the dentin thickness. All data were subjected to Student’s t test and correlation and linear regression analysis. Results: The dentin thickness measured from OCT images was significantly larger than that obtained from Micro-CT(P=0.004),and a strong positive correlation was found between them (R2= 0.9877, P＜0.05). Conclusion: OCT system is a noninvasive tool for quantitatively measuring the thickness of dentin covering the pulp chamber.

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