Evaluation of three radiographic methods for detecting occlusal caries lesions

Brazilian Journal of Oral Sciences

Fábio Luiz Mialhe¹  Domenick T. Zero²  George J. Eckert³  Hafsteinn Eggertsson³  Analoui Moustafa³  Antonio Carlos Pereira⁴ 

[1] Faculdade de Odontologia de Piracicaba, Unicamp, Piracicaba (SP);Indiana University School of Dentistry;Indiana University;Universidade Estadual de Campinas (Unicamp), Piracicaba (SP);

关键词: Digital radiography;    Dental caries;    ROC curve;    Diagnostic test;   

DOI  :  10.20396/bjos.v8i2.8642204

来源: DOAJ

【 摘 要 】

Aim: To compare, in vitro, the performance of three radiographic methods for the detection of occlusal caries in permanent teeth. Methods: A total of 96 extracted molars with no apparent occlusal cavitation were selected, they were photographed and radiographed under standardized conditions using conventional E-plus films and two digital systems, CDR and Sidexis. Two examiners analyzed all films and images, recording the presence and lesion depth. One quarter of the teeth were re-examined for intra- and interexaminer agreements. The teeth were subsequently bisected and examined under a stereomicroscope. The intra and interexaminer agreements and the diagnostic performance (sensitivity, specificity, accuracy and the area under receiver operating characteristic, ROC curve) of each method were evaluated. Results: Out of 96 occlusal surfaces, 41 were sound, 31 had lesions in enamel, and 24 had dentin lesions. Weighted Kappa values for intraexaminer agreement varied widely, depending on both the observer and method. The interexaminer agreement was higher for the digital images than for the conventional films. The area under the ROC curve for enamel and dentin caries (at D1 diagnostic threshold) was 0.55 for films, 0.60 for Schick and 0.54 for Sirona, which were not significantly different from each other. Conclusions: Digital images presented better results of interexaminer agreement; however, no additional effect in the diagnostic performance could be observed in comparison to conventional films.

【 授权许可】

Unknown