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Reproducibility of subtraction radiography in monitoring changes in approximal carious lesions in children

Al‐Sane, Mona, Ricketts, David N., Mendes, Fausto M., Altarakemah, Yacoub, Deery, Christopher, Innes, Nicola and Rollings, Sam 2020. Reproducibility of subtraction radiography in monitoring changes in approximal carious lesions in children. International Journal of Paediatric Dentistry 30 (5) , pp. 587-596. 10.1111/ipd.12638

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Abstract

Background: Laboratory studies have shown that digital subtraction radiography (DSR) can be a more effective tool, than conventional radiography, in monitoring changes in carious lesions. The clinical performance of the technique, however, has not been sufficiently researched. Aim: To compare the reproducibility of DSR to that of bitewing radiographs, in monitoring changes in approximal caries in the mixed dentition. A secondary aim was to determine whether assessment outcomes differed as a function of the method used. Design: Six assessors evaluated 310 lesions first on bitewings, then with DSR. The overall reproducibility was evaluated via intra-class correlation coefficient (ICC). Intra- and inter-rater reproducibility were assessed using weighted Kappa. Paired t test was used to assess differences in the reproducibility across methods. Results: The overall reproducibility for DSR was (ICC = 0.47, 95% CI = 0.31-0.56). Intra- and inter-rater reproducibility were 0.65 and 0.44, respectively. The overall reproducibility for bitewings was ICC = 0.45, 95% CI = 0.42-0.57. Intra- and Inter-rater reproducibility were 0.71 and 0.46, respectively. Differences in the reproducibility across methods were not statistically significant. Significantly more lesions were scored as progressed using DSR. Conclusions: The reproducibility of DSR in monitoring changes in approximal caries is comparable to that of bitewings. Additionally, DSR detected higher proportion of progression than bitewing assessments.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Dentistry
Publisher: Wiley
ISSN: 0960-7439
Date of Acceptance: 3 March 2020
Last Modified: 26 Aug 2020 13:15
URI: http://orca.cf.ac.uk/id/eprint/134379

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