Thyroid dose distribution in dental radiography

Journal Article · Sun Oct 01 00:00:00 EDT 1989 · Oral Surgery, Oral Medicine, Oral Pathology; (USA)

DOI:https://doi.org/10.1016/0030-4220(89)90150-3· OSTI ID:5224526

Bristow, R G; Wood, R E; Clark, G M ^[1]

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1. Ontario Cancer Institute, Toronto (Canada)

The anatomic position and proven radiosensitivity of the thyroid gland make it an organ of concern in dental radiography. A calibrated thermoluminescent dosimetry system was used to investigate the absorbed dose (microGy) to the thyroid gland resultant from a minimum irradiated volume, intraoral full-mouth radiography technique with the use of rectangular collimation with a lead-backed image receptor, and conventional panoramic radiography performed with front and rear lead aprons. Use of the minimum irradiated volume technique resulted in a significantly decreased absorbed dose over the entire thyroid region ranging from 100% to 350% (p less than 0.05). Because this intraoral technique results in radiographs with greater image quality and also exposes the thyroid gland to less radiation than the panoramic, this technique may be an alternative to the panoramic procedure.

• OSTI ID: 5224526
• Journal Information: Oral Surgery, Oral Medicine, Oral Pathology; (USA), Vol. 68:4; ISSN 0030-4220
• Country of Publication: United States
• Language: English

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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOMEDICAL RADIOGRAPHY
RADIATION HAZARDS
THYROID
RADIATION DOSES
RADIATION PROTECTION
THERMOLUMINESCENT DOSIMETRY
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560151* - Radiation Effects on Animals- Man