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https://hdl.handle.net/2440/68895
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Type: | Journal article |
Title: | The in vitro and in vivo validation of a mobile non-contact camera-based digital imaging system for tooth colour measurement |
Author: | Smith, R. Collins, L. Naeeni, M. Joiner, A. Philpotts, C. Hopkinson, I. Jones, C. Lath, D. Coxon, T. Hibbard, J. Brook, A. |
Citation: | Journal of Dentistry, 2005; 36(S1):15-20 |
Publisher: | Elsevier Sci Ltd |
Issue Date: | 2005 |
ISSN: | 0300-5712 1879-176X |
Statement of Responsibility: | Richard N. Smith, Luisa Z. Collins, Mojgan Naeeni, Andrew Joiner, Carole J. Philpotts, Ian Hopkinson, Clare Jones, Darren L. Lath, Thomas Coxon, James Hibbard, Alan H. Brook |
Abstract: | <h4>Objective</h4>To assess the reproducibility of a mobile non-contact camera-based digital imaging system (DIS) for measuring tooth colour under in vitro and in vivo conditions.<h4>Methods</h4>One in vitro and two in vivo studies were performed using a mobile non-contact camera-based digital imaging system. In vitro study: two operators used the DIS to image 10 dry tooth specimens in a randomised order on three occasions. In vivo study 1:25 subjects with two natural, normally aligned, upper central incisors had their teeth imaged using the DIS on four consecutive days by one operator to measure day-to-day variability. On one of the four test days, duplicate images were collected by three different operators to measure inter- and intra-operator variability. In vivo study 2:11 subjects with two natural, normally aligned, upper central incisors had their teeth imaged using the DIS twice daily over three days within the same week to assess day-to-day variability. Three operators collected images from subjects in a randomised order to measure inter- and intra-operator variability.<h4>Results</h4>Subject-to-subject variability was the largest source of variation within the data. Pairwise correlations and concordance coefficients were > 0.7 for each operator, demonstrating good precision and excellent operator agreement in each of the studies. Intraclass correlation coefficients (ICCs) for each operator indicate that day-to-day reliability was good to excellent, where all ICC's where > 0.75 for each operator.<h4>Conclusion</h4>The mobile non-contact camera-based digital imaging system was shown to be a reproducible means of measuring tooth colour in both in vitro and in vivo experiments. |
Keywords: | Tooth whiteness Reproducibility Variability Standardisation |
Rights: | Copyright © 2008 Elsevier Ltd. All rights reserved. |
DOI: | 10.1016/j.jdent.2008.02.002 |
Published version: | http://dx.doi.org/10.1016/j.jdent.2008.02.002 |
Appears in Collections: | Aurora harvest Dentistry publications |
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