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

doi:10.13701/j.cnki.kqyxyj.2016.04.021

Abstract

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.

CLC Number:

R816.98

XI Qiao-ling, LI Jun, LI Dong-dong, CHEN Zhen-yu, DING Jiang-feng. Assessment of Optical Coherence Tomography in the Imaging and Measuring the thickness of Dentin.[J]. Journal of Oral Science Research, 2016, 32(4): 402-404.

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