Proximal surface caries detection with direct-exposure and rare earth screen/film imaging

R. Curtis Lundeen, William D. McDavid, George M. Barnwell

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


This laboratory study compared five imaging systems for their diagnostic accuracy in detection of proximal surface dental caries. Ten viewers provided data on radiographic detectability of carious lesions. The diagnostic accuracy of each system was determined with receiver operating characteristic (ROC) curves by comparing viewer data with the true state of the teeth as determined microscopically. D-speed film marginally outperformed the other four systems, but the three screen/film systems matched the diagnostic accuracy of E-speed film. Radiation reductions between 62% and 92% were achieved with the screen/film systems when compared to the two conventional dental films. The feasibility of designing a screen/film bite-wing cassette was shown, but the poor diagnostic accuracy of the present bite-wing system indicated a need for a new technology in caries detection.

Original languageEnglish (US)
Pages (from-to)734-745
Number of pages12
JournalOral Surgery, Oral Medicine, Oral Pathology
Issue number6
StatePublished - Dec 1988

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Dentistry(all)


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