Evaluation of three radiographic methods for detecting occlusal caries lesions
Braz. j. oral sci
;
8(2): 67-70, Apr.-June 2009. tab
Artigo
em Inglês
| LILACS, BBO
| ID: lil-556466
ABSTRACT
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.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Técnicas In Vitro
/
Radiografia Dentária
/
Radiografia Dentária Digital
/
Cárie Dentária
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Braz. j. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2009
Tipo de documento:
Artigo
País de afiliação:
Brasil
/
Estados Unidos
Instituição/País de afiliação:
Indiana University/US
/
Universidade Estadual de Campinas (Unicamp)/BR
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