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Photodiagnosis of White Spot Lesions after Orthodontic Treatment with a Quantitative Light-induced Fluorescence-Digital System: A Pilot Study

Authors
 Kang, Si-Mook  ;  Jeong, Seung-Hwa  ;  Kim, Hee-Eun  ;  Kim, Baek-Il 
Citation
 Oral Health & Preventive Dentistry, Vol.15(5) : 483-488, 2017 
Journal Title
 Oral Health & Preventive Dentistry 
ISSN
 1602-1622 
Issue Date
2017
MeSH
Adult ; Dental Caries/diagnostic imaging* ; Dental Caries/etiology ; Humans ; Optical Imaging* ; Orthodontic Appliances*/adverse effects ; Pilot Projects
Abstract
PURPOSE: To confirm that the quantitative light-induced fluorescence-digital (QLF-D) system is an adequate tool for monitoring changes in the mineral contents of white spot lesions. MATERIALS AND METHODS: Twenty-three anterior teeth from five orthodontic patients were selected for the samples. Initial fluorescent images were taken with the QLF-D system immediately after removing the fixed orthodontic appliances, and the white spot lesions were visualised in the fluorescent images that were selected. Subsequently, a fluoride varnish containing 0.1% fluoride was applied to all white spot lesions, and the final QLF-D images were taken two weeks after fluoride treatment. Finally, the following four parameters were compared between the images taken at baseline and two weeks after the treatment with paired t-tests: the mean fluorescence loss (∆F), maximum fluorescence loss (∆Fmax), lesion area (area), and lesion volume (∆Q). RESULTS: All the parameters obtained by QLF-D after two weeks had improved significantly when compared with baseline (p < 0.01). The recovery rates of the ∆F, ∆Fmax, area, and ∆Q were 11.4%, 17.1%, -37.5%, and 42.1%, respectively. Shallow lesions (∆Fi ≥ -15%) were better remineralized than deep lesions (∆Fi < -15%). The ratios of the ∆F, ∆Fmax, area, and ∆Q parameters between the shallow and deep lesions were 2.86, 3.30, 2.20, and 1.88, respectively. CONCLUSION: The QLF-D system is a sensitive tool for the assessment of small levels of mineral changes in carious lesions after the removal of orthodontic appliances.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/160919
DOI
10.3290/j.ohpd.a38774
Appears in Collections:
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Dept. of Preventive Dentistry and Public Oral Health (예방치과학교실)
Yonsei Authors
강시묵(Kang, Si-Mook)
김백일(Kim, Baek Il)
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Full Text
https://ohpd.quintessenz.de/index.php?doc=abstract&abstractID=38774/
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