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Abstract(Please copy/paste the abstract send to the congress) : |
ABSTRACT FINAL ID: 0392
TITLE: Comparison of Different Diagnostic Techniques in Detecting Approximal Caries
PRESENTER: Hoda Bahramian
AUTHORS/INSTITUTIONS: H. Bahramian, S. Mohebbi, Community Oral Health Dep, Faculty of Dentistry, Tehran
University of Medical Sciences, Tehran, IRAN (THE ISLAMIC REPUBLIC OF)|H. Bahramian, S. Mohebbi, Research
Center For caries Prevention, , Dental Research Institute,Tehran University of Medical Sciences , Tehran, IRAN (THE
ISLAMIC REPUBLIC OF)|A. Baghalian, Pediatric Department, School of Dentistry, Qazvin University of Medical
Sciences, Qazvin, IRAN (THE ISLAMIC REPUBLIC OF)|A. Baghalian, Qazvin University of Medical Sciences, Dental
Caries Prevention Research Center, Qazvin, IRAN (THE ISLAMIC REPUBLIC OF)|P. Argani, Qazvin University of
Medical Sciences, Qazvin, IRAN (THE ISLAMIC REPUBLIC OF)|
ABSTRACT BODY:
Objectives: The aim of this in vitro study was to evaluate the accuracy, sensitivity and specificity of DIAGNOdent pen,
Vistacam ix and Bitewing radiography in caries detection of the approximal surfaces of primary molars.
Methods: For performing the study, 68 primary molars were selected and their approximal caries status was
determined using these diagnostic techniques: DIAGNOdent pen, Bitewing radiography and Vistacam ix. The teeth
were sectioned and directly assessed by a stereomicroscope as a gold standard. The cut-off points were determined
at D1 and D3 according to the Downer histological classification system. The McNemar test was used to compare the
sensitivity, specificity and accuracy among the methods.
Results: Regarding D1, as a cut-off point for histological assessments, sensitivity, specificity and accuracy of
DIAGNOdent pen were 0.82, 0.75 and 0.8 respectively, while the values were 0.63, 1and 0.62 for Bitewing
radiography and 0.56, 1 and 0.59 for Vistacam ix.
At the D3 level, as a cut-off point for histological analysis, Sensitivity, specificity and accuracy rates of DIAGNOdent
pen were 0.71, 0.86 and 0.8 respectively while these values were 0.71, 0.73 and 0.72 for Bitewing radiography and
0.5, 0.78 and 0.67 for Vistacam ix.
DIAGNOdent pen showed the highest performance and accuracy to detect approximal caries lesions at both D1 and
D3 levels among the three methods (P<0.05). Vistacam ix and Bitewing radiography showed significantly better
performance at D3 compared to D1 while their performance was lower than DIAGNOdent pen.(P<0.05)
Conclusions: DIAGNOdent pen is the preferred diagnostic technique in approximal caries detection at both the dentine
and enamel levels in comparison to Vistacam ix and Bitewing radiography.
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