December 2017

Volume 34, Issue 4

Examiner calibration in caries detection for populations and settings where in vivo calibration is not practical

Authors: Bradley Christian Emily Amezdroz Hanny Calache Mark Gussy Rachel Sore Elizabeth Waters
doi: 10.1922/CDH_4102Christian06


Aim: To study examiner calibration methods for populations and settings where clinical (in vivo) calibration is not practical. Methods: Study design was cross-sectional and fully-crossed. The units of analysis were 880 tooth surfaces, from ten children ages 3 to 4 years. The study had three data components: (1) Examiner training and calibration using the International Caries Detection and Assessment System (ICDAS) e-Learning programme (2) In vivo community-based visual examination and (3) Intra-oral digital photographs of the same tooth surfaces from the in vivo visual examination. Kappa and weighted kappa scores were used to study reliability estimates. Systematic differences in caries assessments were determined using the Stuart Maxwell test. Data were analysed using STATA 13.1 and SAS 9.2. Results: Weighted kappa scores for the in vivo component ranged from 0.50 to 0.66 and from 0.64-0.74, for inter- and intra-examiner reliability, respectively. Caries lesions detected in vivo were also detected on photographs, albeit with increased severity when using photographs. For example, of 46 tooth surfaces assessed as being sound in the in vivo examination, 22 (48%) of these were assessed as having caries when photographs were used as the diagnostic method. Conclusions: From this research it appears that good quality photographs alone may be used for training and calibration among challenging populations or settings without adversely affecting data quality. Key words: dental caries, calibration, photographs, epidemiology, caries detection, oral diagnosis, caries assessment


Other articles in this issue

Article Pages Access
Editorial 192-192 Download
Oral health survey of five-year-olds 2014/15: Have strategies for increasing the levels of parental consent in Bradford been effective? 193-195 Download
Factors supporting dentist leaders´ retention in leadership 196-202 Download
Dental status in nursing home residents with domiciliary dental care in Sweden 203-207 Download
Supervised toothbrushing programs in primary schools and early childhood settings: A scoping review 208-225 Download
Investigating socioeconomic position in dental caries and traumatic dental injury among children in Quebec 226-233 Download
The interaction effects between race and functional disabilities on the prevalence of self-reported periodontal diseases - National Health and Nutrition Examination Survey 2011-2012 234-240 Download
Finnish dentists find smoking cessation important but seldom offer practical support for their patients 241-247 Download
Examiner calibration in caries detection for populations and settings where in vivo calibration is not practical 248-253 Download
Correspondence to Editor 254-254 Download


Online (Single user only)
Institution Online (IP address validation)

Back issues may be obtained from the publisher

Consider recommending subscription to your institution's library

You can view Open Access papers without a subscription.