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KMID : 1023820170090060432
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The Journal of Advanced Prosthodontics
2017 Volume.9 No. 6 p.432 ~ p.438
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Detection of proximal caries using quantitative light-induced fluorescence-digital and laser fluorescence: a comparative study
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Yoon Hyung-In
Yoo Min-Jeong
Park Eun-Jin
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Abstract
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PURPOSE: The purpose of this study was to evaluate the in vitro validity of quantitative light-induced fluorescence-digital (QLF-D) and laser fluorescence (DIAGNOdent) for assessing proximal caries in extracted premolars, using digital radiography as reference method.
MATERIALS AND METHODS: A total of 102 extracted premolars with similar lengths and shapes were used. A single operator conducted all the examinations using three different detection methods (bitewing radiography, QLF-D, and DIAGNOdent). The bitewing x-ray scale, QLF-D fluorescence loss (ΔF), and DIAGNOdent peak readings were compared and statistically analyzed.
RESULTS: Each method showed an excellent reliability. The correlation coefficient between bitewing radiography and QLF-D, DIAGNOdent were ?0.644 and 0.448, respectively, while the value between QLF-D and DIAGNOdent was ?0.382. The kappa statistics for bitewing radiography and QLF-D had a higher diagnosis consensus than those for bitewing radiography and DIAGNOdent. The QLF-D was moderately to highly accurate (AUC = 0.753 ? 0.908), while DIAGNOdent was moderately to less accurate (AUC = 0.622 ? 0.784). All detection methods showed statistically significant correlation and high correlation between the bitewing radiography and QLF-D.
CONCLUSION: QLF-D was found to be a valid and reliable alternative diagnostic method to digital bitewing radiography for in vitro detection of proximal caries.
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KEYWORD
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Bitewing radiography, Laser fluorescence, Proximal caries detection, Quantitative light-induced fluorescence-digital
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