Radiation exposure levels: intra-oral radiography.
Dr. Madhu K. Nair
mkn2+ at PITT.EDU
Wed Nov 12 20:03:45 PST 1997
Recently, I had occasion to inquire about the NEXT data (most recent) with
1. the exposure levels associated with bitewing exposures in the United
States (with D-speed film and round collimation);
2. the current standard of care in the US (intra-oral raiography).
I would like to put some of the info that I got from our colleagues on
ORADLIST for the benefit of anyone researching this. Dr. Ludlow at UNC,
Dr. White (UCLA) and Dr. Platin (UNC) were kind enough to give me some of
the information. I am also including the info that Dr. Suleiman (CDRH,
FDA) sent me via email - NEXT data.
- For a dental bitewing - 217 mR for the United States. The US
dentists use D speed film 90% of the time, as of 1993. This
number is consistent with what others have reported (Goren - NY).
- Dental schools use D speed 29% of time, and is the main reason
their average bitewing exposure is 116 mR.
References: Conway BJ:Evaluation of X-ray Trends (NEXT) Tabulation and
graphical summary of 1993 dental survey. CRCPD Publication 96-3,
Patient Radiation Exposure and Image Quality: A Comparison of
Private Dentists' Offices and Dental Schools. Abstr. AAOMR 1997.
Hope this information is useful.
Thank you for your time and attention.
University of Pittsburgh Tel: (412) 648-8632
School of Dental Medicine (412) 422-5148
Division of Oral and Maxillofacial Radiology Email:mkn2+ at pitt.edu
G 120 Salk Hall
3501 Terrace Street
Pittsburgh PA 15261
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