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Dentomaxillofacial Radiology, Vol 28, Issue 6 344-347, Copyright © 1999 by British Institute of Radiology

ARTICLES

An electronic survey of opinions on the compatibility of current X-ray generators with intra-oral digital X-ray systems

Y. Hayakawa, K. Kuroyanagi, S. K. Chen, A. G. Farman and U. Welander
Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiba, Japan.

OBJECTIVES: To assess opinions on the compatibility of current X-ray generators with intra-oral digital X-ray systems. METHODS: A questionnaire was posted in both English and in Japanese on oral and maxillofacial radiology electronic bulletin boards. The questionnaire was also mailed to selected researchers and manufacturers in oral and maxillofacial radiology. The replies were evaluated to determine opinion on the current and future status of digital intra-oral imaging with special reference to their compatibility with current X-ray generators. RESULTS: Seventy-one replies were received from 19 countries: 39% from Japan and Korea, 27% from North America, 25% from Europe and 8% from the rest of the world. Eighty per cent of respondents were from academia, 15% from industry and the remainder largely in private practice. Respondents' experience was equally divided between solid state, mainly charge-coupled devices (CCDs) and photostimulable phosphor (IP) technologies. Sixty-eight per cent considered that current X-ray generators are compatible with intra-oral digital systems and many believed this was due to their gray scale flexibility. Twenty-eight per cent believed that existing X-ray generators are inconsistent with low exposure times. Many of the replies suggested that in future pixel size would decrease and bit depth and receptor sensitivity increase. CONCLUSIONS: Most respondents are happy to use existing X-ray generators with digital X-ray systems. However, they also believe that increased sensitivity of receptors could lead to more stringent designs of X-ray generators to ensure more reliable outputs in the low exposure range.


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