Diagnostic accuracy of cone beam computed tomography scans compared with intraoral image modalities for detection of caries lesions

Dento Maxillo Facial Radiology
F Haiter-NetoE Gotfredsen

Abstract

The aim was to compare the caries diagnostic accuracy of two cone beam CT systems (CBCT) with two intraoral receptors, one digital and one film. 100 non-cavitated extracted human teeth were placed with approximal contacts: each row of teeth comprised 1 canine, 1 first and second premolar, and 1 first and second molar. Radiographs of each tooth were recorded using two intraoral modalities: Digora-fmx (Soredex) and film (Kodak Insight), and two CBCT systems: NewTom 3G (Quantitative Radiology) in three fields of view (FOVs): pixel size of 0.36 mm (FOV 12 inches), pixel size of 0.25 mm (FOV 9 inches), pixel size of 0.16 mm (FOV 6 inches); and 3DX Accuitomo (Morita), pixel size of 0.125 (FOV 4 cm). The volumetric data from the CBCT systems were reconstructed and sectioned (0.5 mm) in the mesiodistal tooth plane. Six observers scored approximal and occlusal surfaces for the detection of caries lesions. The teeth were clinically sectioned and microscopy served as the validation tool. Two-way ANOVA tested differences in sensitivity, specificity and overall true score (true positives plus true negatives) between the modalities. Microscopy of approximal surfaces found 63% sound, 31% enamel and 6% dentin lesions; of occlusal surfaces, 6% ...Continue Reading

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Citations

Nov 11, 2010·Dento Maxillo Facial Radiology·B SenelH Avsever
May 5, 2012·Dento Maxillo Facial Radiology·M HedesiuUNKNOWN SEDENTEXCT Consortium
Jul 31, 2012·Dento Maxillo Facial Radiology·A WenzelM Frydenberg
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Apr 23, 2010·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·John F SherrardPeter H Buschang
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