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Caries detection and quantification around stained pits and fissures in occlusal tooth surfaces with fluorescence

 Hyung-Suk Lee  ;  Sang-Kyeom Kim  ;  Seok-Woo Park  ;  Elbert de Josselin de Jong  ;  Ho-Keun Kwon  ;  Seung-Hwa Jeong  ;  Baek-Il Kim 
 Journal of Biomedical Optics, Vol.23(9) : 43107, 2018 
Journal Title
 Journal of Biomedical Optics 
Issue Date
occlusal caries ; quantitative light-induced fluorescence ; red fluorescence ; stained pit and fissure ; tooth discoloration
Occlusal discoloration due to staining frequently occurs on the pits and fissures of teeth. Noncariogenic discoloration (non-CD) refers to the attachment of staining chromogens to sound surfaces, whereas cariogenic discoloration (CD) represents the discoloration of porous structures due to bacterial metabolites and mineral loss from the enamel surface. This study evaluated whether it is possible to distinguish between non-CD and CD on stained occlusal surfaces with fluorescence assessed by the quantitative light-induced fluorescence (QLF) technology. Sixty-two extracted human permanent teeth with suspected discolorations on the pit and fissure were examined. The maximum values of fluorescence loss (DeltaFmax) and red fluorescence gain (DeltaRmax) were calculated using QLF images. Using histology as the gold standard, it was found that 12 teeth were sound (non-CD), while 50 teeth had enamel and dentine caries (CD). The validity tests at the enamel histological caries level, DeltaRmax (rho = 0.80) were strongly correlated with the histology (P < 0.001). At the optimum threshold (105.0) of DeltaRmax, it showed high levels of sensitivity and specificity (0.96 and 0.83, respectively). Therefore, QLF can be used to distinguish non-CD from CD on occlusal surfaces using red fluorescence values with high validity.
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2. College of Dentistry (치과대학) > Dept. of Preventive Dentistry and Public Oral Health (예방치과학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Ho Keun(권호근)
Kim, Baek Il(김백일) ORCID logo https://orcid.org/0000-0001-8234-2327
Kim, Sang-Kyeom(김상겸) ORCID logo https://orcid.org/0000-0002-6380-5039
Park, Seok-Woo(박석우) ORCID logo https://orcid.org/0000-0001-8869-5465
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