Korean J Oral Maxillofac Radiol.  2009 Dec;39(4):195-198.

Reference dose levels for dental periapical radiography in Chonnam Province

• Han MR
• Kang BC
• Lee JS
• Yoon SJ
• Kim YH

Abstract

PURPOSE: To establish reference doses of periapical radiography in Chonnam Province, Korea.
MATERIALS AND METHODS
The target-skin distances were measured for dental patient's 1235 exposures including 345 mandibular molar areas. Each periapical radiation exposure was simulated with exactly the same patients exposure parameters and the simulated radiation doses were measured utilizing Mult-O-Meter (Unfors Instruments, Billadal, Sweden). The measurements were done in 44 dental clinics with 49 dental x-ray sets in Chonnam Province for one or two weeks at each dental clinic during year 2006.
RESULTS
The third quartile patient surface doses were 2.8 mGy for overall periapical exposures and 3.2 mGy for periapical mandibular molar exposures.
CONCLUSION
The third quartile patient surface doses in Chonnam Province can be used as a guide to accepted clinical practice to reduce patient radiation exposure for the surveyed reference doses were below the recommended dental periapical radiography dose of 7 mGy by IAEA.

Keyword

Radiation; Gray; Panoramic Radiography

MeSH Terms

Dental Clinics
Humans
Molar
Radiography, Panoramic