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Assessing the use of Quantitative Light-induced Fluorescence-Digital as a clinical plaque assessment

Authors
 Sun-Young Han  ;  Bo-Ra Kim  ;  Hae-Youn Ko  ;  Ho-Keun Kwon  ;  Baek-Il Kim 
Citation
 PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY, Vol.13(1) : 34-39, 2016 
Journal Title
PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY
ISSN
 1572-1000 
Issue Date
2016
MeSH
Colorimetry/methods ; Dental Plaque/diagnosis* ; Dental Plaque/microbiology* ; Female ; Fluorescent Dyes ; Humans ; Lighting/methods ; Male ; Microscopy, Fluorescence/methods* ; Photography, Dental/methods* ; Prevotella intermedia/isolation & purification* ; Reproducibility of Results ; Sensitivity and Specificity ; Streptococcus anginosus/isolation & purification*
Keywords
Fluorescence ; Mature plaque ; Quantitative Light-induced Fluorescence-digital
Abstract
BACKGROUND: The aims of this study were to compare the relationship between red fluorescent plaque (RF plaque) area by Quantitative Light-induced Fluorescence-Digital (QLF-D) and disclosed plaque area by two-tone disclosure, and to assess the bacterial composition of the RF plaque by real time-PCR.
METHODS: Fifty healthy subjects were included and 600 facial surfaces of their anterior teeth were examined. QLF-D was taken on two separate occasions (before and after disclosing), and the RF plaque area was calculated based on Plaque Percent Index (PPI). After disclosing, the stained plaque area was analyzed to investigate the relationship with the RF plaque area. The relationship was evaluated using Pearson correlation and paired t-test. Then, the RF and non-red fluorescent (non-RF) plaque samples were obtained from the same subject for real-time PCR test. Total 10 plaque samples were compared the ratio of the 6 of bacteria using Wilcoxon signed rank test.
RESULTS: Regarding the paired t-test, the blue-staining plaque area (9.3±9.2) showed significantly similarity with the RF plaque area (9.1±14.9, p=0.80) at ΔR20, however, the red-staining plaque area (31.6±20.9) presented difference from the RF plaque area (p<0.0001). In addition, bacterial composition of Prevotella intermedia and Streptococcus anginosus was associated with substantially more the RF plaque than the non-RF plaque (p<0.05).
CONCLUSIONS: The plaque assessment method using QLF-D has potential to detect mature plaque, and the plaque area was associated with the blue-staining area using two-tone disclosure.
Full Text
http://www.sciencedirect.com/science/article/pii/S1572100015300521
DOI
10.1016/j.pdpdt.2015.12.002
Appears in Collections:
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
Han, Sun Young(한선영)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/145527
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