Terahertz Imaging Study of Dentin Caries

Yan LI; Qi-hang LIU; Wei HUANG; Tao DUAN; Zhao-xia CHEN; Ming-xia HE; Yu XIONG

doi:10.3964/j.issn.1000-0593(2022)08-2374-06

Spectroscopy and Spectral Analysis, Volume. 42, Issue 8, 2374(2022)

Terahertz Imaging Study of Dentin Caries

Yan LI1,*... Qi-hang LIU2,2; 3;, Wei HUANG1,1;, Tao DUAN1,1;, Zhao-xia CHEN1,1;, Ming-xia HE2,2; 3; and Yu XIONG1,1; *; |Show fewer author(s)

Author Affiliations

¹1. The First Affiliated Hospital of Army Military Medical University (Third Military Medical University), Department of Stomatology, Chongqing 400038, China

²2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(7)

Fig. 1. Schematic diagram of terahertz time domain spectroscopy system

Download full size

View in Article

Fig. 2. A① Microscope image; A② Contour of dentin caries under microscope image

Download full size

View in Article

Fig. 3. A① X-ray image; A② Contour of dental caries under X-ray

Download full size

View in Article

Fig. 4. A① THz image using the time of the valley in reflection mode; A② THz grayscale image using the time of the valley in reflection mode; B① Phase difference image in frequency domain at 1 THz in the reflection mode; B② Phase difference grayscale image in frequency domain at 1 THz in the reflection mode; C① power image in the frequency domain at 1 THz in reflection mode; C② power grayscale image in the frequency domain at 1 THz in reflection mode

Download full size

View in Article

Fig. 5. A① THz image using the time of the valley in transmission mode; A② THz grayscale image using the time of the valley in transmission mode; B① Phase difference image in frequency domain at 1.4 THz in the transmission mode; B② Phase difference grayscale image in frequency domain at 1.4 THz in the transmission mode; C① Power image in the frequency domain at 1.4 THz in transmission mode; C② Power grayscale image in the frequency domain at 1.4 THz in transmission mode

Download full size

View in Article

Fig. 6. Overlay of microscope, X-ray and transmission terahertz imaging

Download full size

View in Article

Table 1. Comparison of caries area (mm²) between terahertz image and microscope image
View table
View in Article
Table 1. Comparison of caries area (mm²) between terahertz image and microscope image
光镜太赫兹光镜太赫兹光镜太赫兹
9.44 7.21 1.75 1.52 2.43 2.15
3.05 3.84 5.53 4.53 1.23 0.98
14.46 10.19 0.96 0.85 2.11 2.46
2.46 1.86 0.78 1.03 1.85 1.56
4.23 5.14 10.68 8.11 4.23 3.98

Tools

Get Citation

Copy Citation Text

Yan LI, Qi-hang LIU, Wei HUANG, Tao DUAN, Zhao-xia CHEN, Ming-xia HE, Yu XIONG. Terahertz Imaging Study of Dentin Caries[J]. Spectroscopy and Spectral Analysis, 2022, 42(8): 2374

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: Orginal Article

Received: Jun. 28, 2021

Accepted: --

Published Online: Mar. 17, 2025

The Author Email: LI Yan (373494425@qq.com)

DOI:10.3964/j.issn.1000-0593(2022)08-2374-06

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Comparison of caries area (mm2) between terahertz image and microscope image

Table 1. Comparison of caries area (mm2) between terahertz image and microscope image

微信扫一扫：分享

Table 1. Comparison of caries area (mm²) between terahertz image and microscope image

Table 1. Comparison of caries area (mm²) between terahertz image and microscope image