Absorbed dose in the full-mouth periapical radiography, panoramic radiography, and zonography.
- Author:
Soon Chul CHOI
1
;
Hang Moon CHOI
Author Information
1. Department of Oral and Maxillofacial Radiology College of Dentistry, Seoul National University, Korea.
- Publication Type:Original Article
- Keywords:
absorbed dose;
dosimetry;
TLD;
zonography
- MeSH:
Bone Marrow;
Brain;
Parotid Gland;
Radiation Protection;
Radiography*;
Radiography, Panoramic*;
Skin;
Temporomandibular Joint;
Thyroid Gland;
Tomography, X-Ray*
- From:Journal of Korean Academy of Oral and Maxillofacial Radiology
1999;29(1):255-260
- CountryRepublic of Korea
- Language:Korean
-
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.
