Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/198163
Type: Artigo de periódico
Title: Detection Of Non-cavitated Approximal Caries Lesions In Digital Images From Seven Solid-state Receptors With Particular Focus On Task-specific Enhancement Filters. An Ex Vivo Study In Human Teeth.
Author: Haiter-Neto, Francisco
dos Anjos Pontual, Andrea
Frydenberg, Morten
Wenzel, Ann
Abstract: The aim of this study was to compare detection of non-cavitated approximal caries lesions in images from seven solid-state intraoral digital receptors, with particular focus on two task-specific enhancement filters. One hundred and sixty approximal non-cavitated surfaces were radiographed under standardized conditions using the following seven intraoral solid-state digital receptors: two CMOS systems, Schick CDR-APS, and Kodak RVGui; and five CCD systems: Visualix, VistaRay, Dixi2, Sidexis, and Dr. Suni Plus. The Kodak RVGui digital images were captured with two task-specific, predefined enhancement filters (dento-enamel and periodontal). Eight observers examined the digital images for the presence or absence of approximal carious lesions. The teeth were subsequently sectioned for histological analysis, which served as the gold standard for the radiographic examination and allowed for a calculation of sensitivity, specificity, and overall accuracy. Both RVG modalities obtained the highest sensitivity values, which were significantly higher than with Visualix, Sidexis, and VistaRay images (all P<or=0.03). The RVG periodontal images also had a higher accuracy than Dixi2, Dr. Suni Plus, and CDR-APS (P<or=0.05). The RVG modalities also showed the largest observer variation, and their high sensitivities were mainly due to one observer. The sensitivity for VistaRay images was the lowest of all modalities and significantly lower than almost all the other digital systems (P<or=0.02; except for Visualix). Besides, Visualix images had lower sensitivity than CDR-APS, Dixi2, and Dr. Suni Plus images (P<or=0.003). On the other hand, the two RVGui image types showed the lowest mean specificity values. For overall accuracy, the differences among the modalities were non-significant (P>0.05).
Subject: Dental Caries
Filtration
Humans
Observer Variation
Radiography, Dental, Digital
Sensitivity And Specificity
X-ray Intensifying Screens
Rights: fechado
Identifier DOI: 10.1007/s00784-007-0173-5
Address: http://www.ncbi.nlm.nih.gov/pubmed/18210170
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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