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Journal of Biomedical Optics

Plaque autofluorescence as potential diagnostic targets for oral malodor
Author(s): Eun-Song Lee; Hyun-Kyung Yim; Hyung-Suk Lee; Jong-Hoon Choi; Ho-Keun Kwon; Baek-Il Kim
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Paper Abstract

The aim of this study was to determine whether the degree of tongue and interdental plaque can be used to assess oral malodor by quantifying their fluorescence as detected using quantitative light-induced fluorescence (QLF) technology. Ninety-nine subjects who complained of oral malodor were included. The level of oral malodor was quantified using the organoleptic score (OLS) and the concentration of volatile sulfur compounds (VSCs). The fluorescence properties of tongue and interdental plaque were quantified as scores calculated by multiplying the intensity and area of fluorescence in QLF-digital images, and the combined plaque fluorescence (CPF) score was obtained by summing the scores for the two regions. The associations of the scores with malodor levels and the diagnostic accuracy of the CPF score were analyzed. The two plaque fluorescence scores and their combined score differed significantly with the level of oral malodor (p<0.001). The CPF score was moderately correlated with OLS (r=0.64) and VSC levels (r=0.54), and its area under the receiver operating characteristic curve was 0.77 for identifying subjects with definite oral malodor (OLS≥2). In conclusion, plaque fluorescence from tongue and interdental sites as detected using QLF technology can be used to assess the level of oral malodor.

Paper Details

Date Published: 26 August 2016
PDF: 7 pages
J. Biomed. Opt. 21(8) 085005 doi: 10.1117/1.JBO.21.8.085005
Published in: Journal of Biomedical Optics Volume 21, Issue 8
Show Author Affiliations
Eun-Song Lee, Yonsei Univ. College of Dentistry (Republic of Korea)
Hyun-Kyung Yim, Yonsei Univ. College of Dentistry (Republic of Korea)
Hyung-Suk Lee, Yonsei Univ. College of Dentistry (Republic of Korea)
Jong-Hoon Choi, Yonsei Univ. College of Dentistry (Republic of Korea)
Ho-Keun Kwon, Yonsei Univ. College of Dentistry (Republic of Korea)
Baek-Il Kim, Yonsei Univ. College of Dentistry (Republic of Korea)


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