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Development of a fluorescence-image scoring system for assessing noncavitated occlusal caries

Authors
 Eun-Ha Jung  ;  Eun-Song Lee  ;  Hoi-In Jung  ;  Si-Mook Kang  ;  Elbert de Josselin de Jong  ;  Baek-Il Kim 
Citation
 Photodiagnosis and Photodynamic Therapy, Vol.21 : 36-42, 2018 
Journal Title
 Photodiagnosis and Photodynamic Therapy 
ISSN
 1572-1000 
Issue Date
2018
Keywords
Fluorescence imaging ; Noncaviated caries ; Occlusal caries ; Quantitative light-induced fluorescence (QLF) technology ; Scoring system ; Teledentistry
Abstract
BACKGROUND: This study aimed (1) to develop a scoring system based on a quantitative light-induced fluorescence (QLF) score for the occlusal caries (QS-Occlusal) that standardizes the fluorescence properties of noncavitated lesions from QLF images, (2) to confirm the validity and reliability of QS-Occlusal, and (3) to determine whether it is possible to replace existing clinical examinations by image evaluations based on the developed QS-Occlusal for assessing occlusal caries lesions. METHODS: This clinical study investigated 791 teeth of 94 subjects. The teeth were assessed by visual and tactile examinations using ICDAS criteria and quantitative light-induced fluorescence-digital (QLF-D) image examinations. QS-Occlusal was divided into four stages (from 0 to 3) based on the progression level of the lesion and the fluorescence loss and red fluorescence on captured QLF-D images. Two trained examiners who were not involved in the visual examination evaluated occlusal fluorescence images using QS-Occlusal. The maximum loss of fluorescence (
DeltaFmax
) and the maximum change in the ratio of red and green fluorescence (DeltaRmax) were quantitatively analyzed by the QA2 software to detect differences between the QS-Occlusal groups. The modalities were compared in terms of sensitivity, specificity, and area under the receiver operating characteristics (AUROC) curve for three different thresholds of the ICDAS codes: 0 vs 1-4 (D1), 0-2 vs 3/4 (D2), and 0-3 vs 4 (D3). RESULTS:
DeltaFmax
increased significantly by about 4.7-fold (from 15.94 to 75.63) when QS-Occlusal increased from 0 to 3. DeltaRmax was about 6.2-fold higher for QS-Occlusal=1 (49.74) than for QS-Occlusal=0 (8.04), and 21.6-fold higher for QS-Occlusal=3 (P<0.05). The new QS-Occlusal showed an excellent AUROC (ranging from 0.807 to 0.976) in detecting occlusal caries when optimum cutoff values were applied. The intra- and interexaminer agreements indicated excellent reliability, with ICC values of 0.94 and 0.86, respectively. CONCLUSIONS: The QS-Occlusal proposed in this study can be used in the clinical detection of noncavitated lesions with an excellent diagnostic ability. This makes it possible to replace clinical examinations and intuitively evaluate the lesion severity and status relatively easily and objectively by applying this scoring system to fluorescence images.
Full Text
https://www.sciencedirect.com/science/article/pii/S1572100017303708
DOI
10.1016/j.pdpdt.2017.10.027
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Preventive Dentistry and Public Oral Health (예방치과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Si-Mook(강시묵) ORCID logo https://orcid.org/0000-0003-2341-3636
Kim, Baek Il(김백일) ORCID logo https://orcid.org/0000-0001-8234-2327
Lee, Eun Song(이은송) ORCID logo https://orcid.org/0000-0002-2949-4783
Jung, Eun Ha(정은하)
Jung, Hoi In(정회인) ORCID logo https://orcid.org/0000-0002-1978-6926
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/161830
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