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The in vitro and in vivo validation of a mobile non-contact camera-based digital imaging system for tooth colour measurement.
- Source :
-
Journal of dentistry [J Dent] 2008; Vol. 36 Suppl 1, pp. S15-20. - Publication Year :
- 2008
-
Abstract
- Objective: 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.<br />Methods: 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.<br />Results: 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.<br />Conclusion: 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.
- Subjects :
- Adolescent
Adult
Aged
Color
Colorimetry instrumentation
Cuspid anatomy & histology
Equipment Design
Female
Humans
Incisor anatomy & histology
Male
Middle Aged
Observer Variation
Reproducibility of Results
Time Factors
Image Processing, Computer-Assisted instrumentation
Photography, Dental instrumentation
Tooth anatomy & histology
Subjects
Details
- Language :
- English
- ISSN :
- 0300-5712
- Volume :
- 36 Suppl 1
- Database :
- MEDLINE
- Journal :
- Journal of dentistry
- Publication Type :
- Academic Journal
- Accession number :
- 18646365
- Full Text :
- https://doi.org/10.1016/j.jdent.2008.02.002