Digital radiography in general dental practice. A field study

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Digital radiography in general dental practice. A field study

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Publication Article, peer reviewed scientific
Title Digital radiography in general dental practice. A field study
Author(s) Hellén-Halme, Kristina ; Nilsson, Mats ; Petersson, Arne
Date 2007
English abstract
Abstract Objectives: The aim of this study was to conduct a field study to survey the performance of digital radiography and how it was used by dentists in general dental practice. Methods: Nineteen general dental practitioners were visited at their clinics. Ambient light (illuminance) was measured in the rooms where the monitors were placed. Different technical display parameters were noted. Test images and two phantoms—one low-contrast phantom and one line-pair resolution phantom—were used to evaluate the digital system. How the dentists used the enhancement program was investigated by noting which functions were used. Results: Average illuminance in the operating room was 668 lux (range 190–1250 lux). On radiographs of the low-contrast phantom taken at the clinic, the ability to observe the holes decreased as illuminance increased. On average, the “light percentage” initially set on the monitor had to be decreased by 17% and contrast by 10% to optimise the display of the test images. The general dental practitioners used the enhancement programs most often to alter brightness and contrast to obtain the subjectively best image. Large differences between the clinics were noted. Conclusion: Knowledge of how to handle digital equipment in general dental practice should be improved. A calibrated monitor of good quality should be a given priority, as should proper ambient light conditions. There is a need to develop standardised quality controls for digital dental radiography. Key-words: display monitor, enhancement program, digital radiography, quality
DOI (link to publisher's fulltext)
Host/Issue Dento-maxillo-facial radiology;5
Volume 36
ISSN 0250-832X
Pages 249-255
Language eng (iso)
Subject(s) Digital radiography
Research Subject Categories::ODONTOLOGY::Radiological research
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