Community Dental Health

cover art

Cover Date:
September 2011
Print ISSN:
0265 539X
Vol:
28
Issue:
3

Dental examiners consistency in applying the ICDAS criteria for a caries prevention community trial

Aim: To examine dental examiners’ one-year consistency in utilizing the International Caries Detection and Assessment System (ICDAS) criteria after baseline training and calibration. Methods: A total of three examiners received baseline training/calibration by a “gold standard” examiner, and one year later re-calibration was conducted. For the baseline training/calibration, subjects aged 8-16 years, and for the re-calibration subjects aged five to six years were recruited for the study. The ICDAS criteria were used to classify visual caries lesion severity (0-6 scale), lesion activity (active/ inactive), and presence of filling material (0-9 scale) of all available tooth surfaces of permanent and primary teeth. The examination used a clinical light, mirror and air syringe. Kappa (weighted: Wkappa, unweighted: Kappa) statistics were used to determine inter-and intra-examiner reliability at baseline and re-calibration. Results: For lesion severity and filling criteria, the baseline calibration on 35 subjects indicated an inter-rater Wkappa ranging from 0.69-0.92 and intra-rater Wkappa ranging from 0.81-0.92. Re-calibration on 22 subjects indicated an inter-rater Wkappa of 0.77-0.98 and intra-rater Wkappa ranged from 0.93-1.00. The Wkappa for filling was consistently in the excellent range, while lesion severity was in the good to excellent range. Activity kappa was in the poor to good range. All examiners improved with time. Conclusions: The baseline training/calibration in ICDAS was crucial to maintain the stability of the examiners reliability over a one year period. The ICDAS can be an effective assessment tool for community-based clinical trials.

Key words: Caries severity, ICDAS, dental examiners, baseline training, dental caries, community based study

Article Price
£15.00
Institution Article Price
£
Page Start
238
Page End
242
Authors
H. Eggertsson, B. Powell, J. Mandelaris, M. Ntragatakis, T. Richardson, G. Ferretti

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