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Quantitative light-induced fluorescence technology for quantitative evaluation of tooth wear

Authors
 Sang-Kyeom Kim  ;  Hyung-Suk Lee  ;  Seok-Woo Park  ;  Eun-Song Lee  ;  Elbert de Josselin de Jong  ;  Hoi-In Jung  ;  Baek-Il Kim 
Citation
 Journal of Biomedical Optics, Vol.22(12) : 121701, 2017 
Journal Title
 Journal of Biomedical Optics 
ISSN
 1083-3668 
Issue Date
2017
Keywords
autofluorescence ; occlusal wear ; quantitative light-induced fluorescence ; tooth wear
Abstract
Various technologies used to objectively determine enamel thickness or dentin exposure have been suggested. However, most methods have clinical limitations. This study was conducted to confirm the potential of quantitative light-induced fluorescence (QLF) using autofluorescence intensity of occlusal surfaces of worn teeth according to enamel grinding depth in vitro. Sixteen permanent premolars were used. Each tooth was gradationally ground down at the occlusal surface in the apical direction. QLF-digital and swept-source optical coherence tomography images were acquired at each grinding depth (in steps of 100  μm). All QLF images were converted to 8-bit grayscale images to calculate the fluorescence intensity. The maximum brightness (MB) values of the same sound regions in grayscale images before (MBbaseline) and phased values after (MBworn) the grinding process were calculated. Finally, 13 samples were evaluated. MBworn increased over the grinding depth range with a strong correlation (r=0.994, P<0.001). In conclusion, the fluorescence intensity of the teeth and grinding depth was strongly correlated in the QLF images. Therefore, QLF technology may be a useful noninvasive tool used to monitor the progression of tooth wear and to conveniently estimate enamel thickness.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/161033
DOI
10.1117/1.JBO.22.12.121701
Appears in Collections:
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Dept. of Preventive Dentistry and Public Oral Health (예방치과학교실)
Yonsei Authors
김백일(Kim, Baek Il) ; 이은송(Lee, Eun Song) ; 정회인(Jung, Hoi In)
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Full Text
https://www.spiedigitallibrary.org/journals/Journal-of-Biomedical-Optics/volume-22/issue-12/121701/Quantitative-light-induced-fluorescence-technology-for-quantitative-evaluation-of-tooth/10.1117/1.JBO.22.12.121701.short
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