J Korean Acad Oral Maxillofac Radiol.
1999 Aug;29(2):411-416.
Absorbed doses in organs of the head and neck from conventional temporomandibular joint tomography
- Affiliations
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- 1Department of Maxillofacial Radiology, College of Dentistry, Pusan National University, Korea.
Abstract
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PURPOSE: This study was done to evaluate the absorbed doses in organs of the head and neck for the conventional temporomandibular joint tomography.
MATERIALS AND METHODS
Dosimetry was performed with 32 LiF thermoluminescent dosimeters, which were placed in a tissue-equivalent phantom when the temporomandibular joint was examined by both lateral and frontal temporomandibular joint tomography.
RESULTS
For lateral tomography, parotid gland and preauricular area towards tube showed relatively high absorbed dose of 1056.9 microGy and 519.9 microGy respectively. For frontal tomography, the two largest absorbed doses were 259.2 microGy in orbit towards tube and 212.0 microGy in lens towards tube.
CONCLUSION
Conventional temporomandibular joint tomography showed relatively low absorbed doses on critical organs. Thus, responsible use of it may not be limited.
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