Korean J Oral Maxillofac Radiol.  2001 Dec;31(4):215-219.

The absorbed doses from each exposure program of the Orthopos(R) panoramic machine

• Choi SC
• Lee SM

Abstract

PURPOSE: The objective of this study was to estimate the radiation absorbed doses in certain critical organs in the head and neck region with 16 imaging programs available on the Orthopos(R) panoramic machine.
MATERIALS AND METHODS
A Rando phantom and LiF TLD chips were used for dosimetry. The absorbed doses were measured at the thyroid gland, the submandibular gland, the parotid gland, the mouth floor, the maxillary sinus, the brain, the mandibular body, the mandibular ramus, the 2nd cervical spine and the skin over TMJ area.
RESULTS
The overall absorbed doses with imaging programs available on the Orthopos(R) panoramic machine were much less than that of standard program (program 1) except program 8, 11, and 16. Generally, the absorbed doses to the bone marrow of the mandibular ramus and the parotid gland were high, but the absorbed doses to the bone marrow in the mandibular body, brain, maxillary sinus, and, especially, the thyroid gland were very low.
CONCLUSION
The modified imaging programs available on the Orthopos(R) panoramic machine can be effectively used in aspect of radiation protection.

Keyword

radiation; dosage; dosimetry; radiography; panoramic

MeSH Terms

Bone Marrow
Brain
Head
Maxillary Sinus
Mouth Floor
Neck
Parotid Gland
Radiation Protection
Radiography
Skin
Spine
Submandibular Gland
Temporomandibular Joint
Thyroid Gland