Extraoral imaging for proximal caries detection: Bitewings vs scanogram

Emad A Khan; Donald A Tyndall; Daniel Caplan

doi:10.1016/j.tripleo.2004.08.006

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Journal article

Extraoral imaging for proximal caries detection: Bitewings vs scanogram

Emad A Khan, Donald A Tyndall and Daniel Caplan

Oral surgery, oral medicine, oral pathology, oral radiology and endodontics, Vol.98(6), pp.730-737

12/2004

DOI: 10.1016/j.tripleo.2004.08.006

PMID: 15583548

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Abstract

The objective of this study was to compare the diagnostic accuracy of 3 extraoral imaging modalities with an intraoral bitewing radiograph for proximal caries detection. Three modalities of Cranex TOME scanograms, x-ray film and DenOptix photostimulable phosphor plates with and without digital enhancement, were compared with Insight intraoral radiographs for proximal caries detection. Nine observers evaluated images of the proximal surfaces of 45 extracted posterior teeth. The presence or absence of caries was scored using a 5-point confidence scale. The ground truth was determined from histological sections. Responses were evaluated by repeated measures analysis of variance (ANOVA) for areas under receiver operating characteristic (ROC) curves (A z ). Repeated measures ANOVA (at alpha = 0.05) demonstrated significant differences among modalities ( P = .041). Paired t tests with Bonferroni correction demonstrated that Insight was superior to only unenhanced digital scanograms ( P = .003). Mean A z scores (+/-SD) were 0.73 (+/-0.08) for Insight, 0.65 (+/-0.06) for screen/film scanogram, 0.64 (+/-0.04) for unenhanced digital scanogram, and 0.66 (+/-0.07) for enhanced digital scanogram. The performances of film-based and enhanced digital scanograms were not statistically different from Insight film for proximal caries detection. Unenhanced digital scanograms exhibited a statistically significant lower diagnostic accuracy than Insight film.

Area Under Curve

Humans

Bicuspid - diagnostic imaging

Radiographic Image Enhancement - methods

Radiography, Bitewing - statistics & numerical data

Molar - diagnostic imaging

Dental Caries - diagnostic imaging

X-Ray Film

Radiography, Dental, Digital - statistics & numerical data

X-Ray Intensifying Screens

Dental Caries - pathology

Analysis of Variance

Matched-Pair Analysis

ROC Curve

Bicuspid - pathology

Molar - pathology

Observer Variation

Details

Title: Subtitle: Extraoral imaging for proximal caries detection: Bitewings vs scanogram
Creators: Emad A Khan - King Abdulaziz University, Faculty of Dentistry, Jeddah, Saudi Arabia. khane@dentistry.unc.edu
Donald A Tyndall
Daniel Caplan
Resource Type: Journal article
Publication Details: Oral surgery, oral medicine, oral pathology, oral radiology and endodontics, Vol.98(6), pp.730-737
Publisher: United States
DOI: 10.1016/j.tripleo.2004.08.006
PMID: 15583548
ISSN: 1079-2104
eISSN: 1528-395X
Language: English
Date published: 12/2004
Academic Unit: Preventive and Community Dentistry
Record Identifier: 9983917684002771

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8 Times Cited - Web of Science