Effect of two X-ray tube voltages on detection of approximal caries in digital radiographs. An in vitro study

DSpace Repository

Effect of two X-ray tube voltages on detection of approximal caries in digital radiographs. An in vitro study

Show full item record

Files for download

Find Full text There are no files associated with this item..

Facebook

Simple item record

Publication Article, peer reviewed scientific
Title Effect of two X-ray tube voltages on detection of approximal caries in digital radiographs. An in vitro study
Author(s) Hellén-Halme, Kristina
Date 2011
English abstract
This study evaluated the effect of two different tube voltages on clinicians' ability to diagnose approximal carious lesions in digital radiographs. One hundred extracted teeth were radiographed twice at two voltage settings, 60 and 70 kV, using a standardized procedure. Seven observers evaluated the radiographs on a standard color monitor pre-calibrated according to DICOM part 14. Evaluations were made at ambient light levels below 50 lx. All observations were analyzed with receiver operating characteristic curves. A histological examination of the teeth served as the criterion standard. A paired t test compared the effects of the two voltages. The significance level was set to p < 0.05. Weighted kappa statistics estimated intra-observer agreement. No significant difference in accuracy of approximal carious lesion diagnosis was found between the two voltage settings. But five observers rated dentin lesions on radiographs exposed at 70 kV better than on radiographs exposed at 60 kV. Intra-observer agreement differed from fair to moderate. There was no significant difference in accuracy of approximal carious lesion diagnosis between digital radiographs exposed with 60 or 70 kV.
DOI http://dx.doi.org/10.1007/s00784-010-0383-0 (link to publisher's fulltext)
Host/Issue Clinical Oral Investigations;2
Volume 15
ISSN 1432-6981
Pages 209-213
Language eng (iso)
Subject(s) Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/10623 (link to this page)

This item appears in the following Collection(s)

Show full item record

Search


Browse

My Account

Statistics