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Abstract
The relationship between various technical viewing conditions and the diagnostic value
of bitewing radiographs on the interpretation of initial proximal carious lesions
was evaluated. Modification of illumination from the viewbox, the masking of the viewbox,
the surrounding illumination, viewing against a wide light source, and the use of
accessories were studied. Modification of illumination conditions was found to have
only a slight negative influence on the diagnostic quality compared to standard conditions.
The use of accessories can have a more important, positive influence, especially when
one is using a magnifying glass or an x-viewer. TV systems produced disappointing
results. The observer, however, proved to be the most important variable with respect
to the diagnostic quality of the radiograph.
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Article info
Footnotes
☆This study was carried out in the Department of Oral Roentgenology, University of Utrecht Dental School, The Netherlands (Head: Prof. J. van Aken) and during a stay at the Department of Oral Diagnosis and Radiology, The University of Michigan School of Dentistry, Ann Arbor (Prof. A.G. Richards). This stay was made possible partly by financial support of The Netherlands Organization for the Advancement of Pure Research (Z.W.O.) and The Council for International Exchange of Scholars (Fulbright-Hays Program).
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Copyright
© 1987 Published by Elsevier Inc.
