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新型光纤光学相干层析系统在龋齿诊断中的应用 被引量：1

Implement of a New Fiber Optical Coherence Tomography System in the Diagnosis of Dental Caries
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摘要 早期龋齿导致牙齿内部脱矿,使得该区域折射率发生变化,从而导致其后向散射系数增加。利用一种新型的光学相干层析(OCT)系统可以进行口腔龋齿疾病的诊断。该全光纤系统快速准确地获得了人体正常离体牙和具有龋变的离体牙的OCT图像。对比它们的后向散射系数,首次发现具有龋变的离体牙齿的后向散射系数是正常离体牙齿组织的数倍。采用此方法可以对龋齿及早期龋齿进行诊断,对于龋齿早期诊断研究具有重要的意义。 Early demineralization caused by caries will change the refractive index of teeth and increase the backscattering coefficient. A novel optical coherence tomography （OCT） system was used to diagnose the dental caries. With this system, the OCT images of in vitro normal tooth and the caries were obtained quickly and properly, and it was firstly found that the backscattering .coefficient of the caries tooth is several times more than the normal tooth by comparing the caries region with the normal region of the in vitro tooth. This method can be used for the diagnosis of early dental caries caused by the dental decays, therefore has great merits for the clinical diagnosis of early dental caries.
作者 孟卓 姚晓天 兰寿锋 姚晖 刘铁根 李燕妮 梁燕 王冠华
机构地区 天津大学精密仪器与光电子工程学院光电信息技术科学教育部重点实验室 天津市口腔医院中心实验室
出处 《激光生物学报》 CAS CSCD 2010年第1期120-123,142,共5页 Acta Laser Biology Sinica
基金 国家自然科学基金项目(30770597)
关键词 光学相干层析 牙齿 龋齿 optical coherence tomography dental caries
分类号 TN247 [电子电信—物理电子学] Q631 [生物学—生物物理学]
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参考文献10

  • 1D HUANG, E A SWANSON, C P LIN, et al. Optical Coherence Tomography [ J ]. Science, 1991, 254 ( 5 035 ) : 1 178- 1 181.
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  • 3A BAUMGARTNER, S DICHTL, C K HITZENBERGER, et al. Polarization-Sensitive Optical Coherence Tomography of Dental Structures[J]. Caries Res, 2000, 34( 1 ) :59-69.
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二级参考文献7

  • 1JUNZhang,GUOShu-guang,JUNG Woongg-yu,et al.Determination of birefringence and absolute optic axis orientation using polarization-sensitive optical coherencetomography with PMfibers[].Optics Ex-press.2003
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共引文献7

同被引文献24

  • 1李涢,叶卫平,李玉晶,于洋.邻面龋翼片计算机自动分析诊断系统的建立和评价[J].中华口腔医学杂志,2006,41(3):164-167. 被引量：2
  • 2Fejerskoy O,Kidd E.龋病学:疾病及其临床处理[M].樊明文,边专泽.北京:人民卫生出版社,2006.
  • 3Meng Zhuo,Yao XS,Yao Hui,et al.Measurement of the refractive index of human teeth by optical coherence tomography[J].J Biomed Opt,2009,14(3); 034010.
  • 4Ngaotheppitak P,Darling CL,Fried D.Measurement of the severity of natural smooth surface (interproximal) caries lesions with polarization sensitive optical coherence tomography[J].Lasers Surg Med,2005,37(1):78-88.
  • 5Chong SL,Darling CL,Fried D.Nondestructive measurement of the inhibition of demineralization on smooth surfaces using polarizationsensitive optical coherence tomography[J].Lasers Surg Med,2007,39(5):422-427.
  • 6Li Jia-lin,Bowman C,Fazel-Rezai R,et al.Speckle reduction and lesion segmentation of OCT tooth images for early caries detection[J].Conf Proc IEEE Eng Med Biol Soc,2009:1449-1452.
  • 7Maia AM,Fonseca DD,Kyotoku BB,et al.Characterization of enamel in primary teeth by optical coherence tomography for assessment of dental caries[J].Int J Paediatr Dent,2010,20(2):158-164.
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  • 9Song KB,Choi YH,Jeong SH,et al.Detection of incipient carious lesions formed on human teeth in vitro using ultraviolet laser[J].Photomed Laser Surg,2005,23(5):498-503.
  • 10Chalmers JM.Minimal intervention dentistry:part 1.Strategies for addressing the new caries challenge in older patients[J].J Can Dent Assoc,2006,72(5):427-433.

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激光生物学报
2010年 第1期

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