J Korean Acad Oral Maxillofac Radiol.
1999 Feb;29(1):255-260.
Absorbed dose in the full-mouth periapical radiography, panoramic radiography, and zonography
- Affiliations
-
- 1Department of Oral and Maxillofacial Radiology College of Dentistry, Seoul National University, Korea.
- 2Department of Dental Research Institute College of Dentistry, Seoul National University, Korea.
Abstract
-
PURPOSE: The objective of this study was to evaluate the possibility of substitution of the zonography for the full-mouth periapical radiography in aspect of radiation protection.
MATERIALS AND METHODS
Rando phantom and LiF TLD chips were used for dosimetry. The absorbed doses at brain, skin above the TMJ, parotid gland, bone marrow in the mandibular body, and thyroid gland during the full-mouth periapical radiography, panoramic radiography, and zonography were measured.
RESULTS
From the zonography, the absorbed doses to the brain, the skin over the TMJ, and the parotid gland were relatively high, but the absorbed doses to the bone marrow in the mandibular body and, especially, the thyroid gland were very low.
CONCLUSION
The zonography can be an alternative to the full-mouth periapical radiography in aspect of radiation protection.
Keyword
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Absorbed and effective dose in direct and indirect digital panoramic radiography
- Absorbed and effective dose from periapical radiography by portable intraoral x-ray machine
- Assessment of panoramic radiography as a national oral examination tool: review of the literature
- Absorbed and effective dose for periapical radiography using portable and wall type dental X-ray machines
- Radiation absorbed doses of cone beam computed tomography
