|Article 3, Volume 6, Issue 2, Spring 2017, Page 61-66 PDF (245 K)|
Detection of caries lesions on approximal surfaces of posterior teeth
is difficult, since wide contact points hamper direct visual inspection.
Due to the importance of the early detection of dental caries, the aim
of this study is to compare the performance of different methods
(visual, bitewing radiography and DIAGNOdent) in detecting approximal
caries in primary molars. Methods: Thirty six children
were selected from patients referred to the pediatric dentistry
department of Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Two examiners evaluated 229 approximal surfaces of primary molars
using: visual inspection, radiography and a pen-type laser fluorescence
device (DIAGNOdent) for the presence of proximal caries. The surfaces
were evaluated by 2 other examiners for the presence of white spots or
cavitations. Sensitivity, specificity and accuracy (percentage of
correct diagnosis) were calculated for each method. The area under the
receiver-operating characteristics curve (A z) was calculated for
DIAGNOdent device. The inter-examiner reproducibility was calculated
using the intra-class correlation coefficient (ICC values) for laser
Fluorescence and agreement coefficient for visual and radiographic
methods.Results: At white-spot threshold, a
DIAGNOdent device presented better performance. At cavitation threshold
the radiographic method demonstrated higher sensitivity than visual
inspection and DIAGNOdent device .In this threshold, all methods presented high specificities|
Conclusions: A DIAGNOdent device performs better in white spot threshold. However, radiography shows better performance in detecting more advanced approximal caries lesions.