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01-09-2018 | Original Article

Optical coherence tomography to evaluate variance in the extent of carious lesions in depth

Authors: Kyung-Jin Park, Hartmut Schneider, Dirk Ziebolz, Felix Krause, Rainer Haak

Published in: Lasers in Medical Science | Issue 7/2018

Abstract

Evaluation of variance in the extent of carious lesions in depth at smooth surfaces within the same ICDAS code group using optical coherence tomography (OCT) in vitro and in vivo. (1) Verification/validation of OCT to assess non-cavitated caries: 13 human molars with ICDAS code 2 at smooth surfaces were imaged using OCT and light microscopy. Regions of interest (ROI) were categorized according to the depth of carious lesions. Agreement between histology and OCT was determined by unweighted Cohen’s Kappa and Wilcoxon test. (2) Assessment of 133 smooth surfaces using ICDAS and OCT in vitro, 49 surfaces in vivo. ROI were categorized according to the caries extent (ICDAS: codes 0–4, OCT: scoring based on lesion depth). A frequency distribution of the OCT scores for each ICDAS code was determined. (1) Histology and OCT agreed moderately (κ = 0.54, p ≤ 0.001) with no significant difference between both methods (p = 0.25). The lesions (76.9% (10 of 13)) _were equally scored. (2) In vitro, OCT revealed caries in 42% of ROI clinically assessed as sound. OCT detected dentin-caries in 40% of ROIs visually assessed as enamel-caries. In vivo, large differences between ICDAS and OCT were observed. Carious lesions of ICDAS codes 1 and 2 vary largely in their extent in depth.

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Title: Optical coherence tomography to evaluate variance in the extent of carious lesions in depth
Authors: Kyung-Jin Park
Hartmut Schneider
Dirk Ziebolz
Felix Krause
Rainer Haak
Publication date: 01-09-2018
Publisher: Springer London
Published in: Lasers in Medical Science / Issue 7/2018
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI: https://doi.org/10.1007/s10103-018-2522-9

At a glance: The STEP trials

Springer Medicine

Optical coherence tomography to evaluate variance in the extent of carious lesions in depth

Abstract

At a glance: The STEP trials

Springer Medicine

Abstract

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