Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
Vol. 11, No. 1, 2012, pp. 25-29
Bioline Code: os12005
Full paper language: English
Document type: Research Article
Document available free of charge
Brazilian Journal of Oral Sciences, Vol. 11, No. 1, 2012, pp. 25-29
© Copyright 2012 Braz J Oral Sci.
Reproducibility of caries diagnosis in permanent teeth according to WHO, ICDAS-II and Nyvad criteria|
Silva, Priscila Florentino; Forte, Franklin Delano Soares; Chaves, Ana Maria Barros Pereira; Farias, Isabela Albuquerque Passos & Castro, Kaline Silva
Aim: To assess inter-examiner reproducibility in the detection of 20 occlusal caries in permanent
teeth using three diagnostic codes and criteria: WHO (1997), Nyvad and ICDAS-II.
Methods: Three graduate students (G) and two undergraduate dental students (UG) without previous experience in the use of Nyvad and ICDAS-II were trained by a reference examiner. Examiner
validity was assessed by consensus agreement between the investigators. Two cutoff points
were used for ICDAS-II and Nyvad to represent reproducibility values: the A- lesion, B- cavity
Results: According to the examiners consensus, the kappa values ranged from 0.71 to
0.85 for G group and from 0.85 to 0.95 for UG group (ICDAS-II). For the Nyvad index values
varied from of 0.77 to 1.00 (G) and from 0.65 to 0.74 (UG), for the WHO index, values obtained
ranged from 0.66 to 1.00 (UG) and 1.00 (G). Using a cutoff A, interexaminers reproducibility
(ICDAS-II) ranged from 0.73 to 0.87 (G) and 1.00 (UG). According to Nyvad criteria, the kappa
value ranged from 0.78 to 1.00 (G) and from 0.70 and 0.90 (UG) when compared to the
consensus. The kappa values using the cutoff point B ranged from 0.66 to 1.00 (G), 0.76-0.89
(UG) in ICDAS-II and the in Nyvad criteria varied from 0.87 to 1.00 (G) and from 0.65 to 0.88
Conclusions: Reproducibility values ranged from good to perfect. The reproducibility
revealed precise answers in the occlusal caries lesions diagnosis according to the criteria used.
The best use of reliability tools for examiner training was important regardless of the examiners
being undergraduate or graduate students.
dental diagnosis, tooth decay, reproducibility
Alternative site location: http://www.fop.unicamp.br/brjorals