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Published on: April 8, 2020
Surface and internal absorbed doses in mandibular and maxillary occlusal radiography
S F Roth1, R N Bohay, R B Barnett
1University of Western Ontario, London.
Journal (Canadian Dental Association)
|November 1, 1995
Summary
This study measured radiation doses from common dental occlusal radiographs. Absorbed doses were similar to other dental X-rays, ranging from 0.0014 to 1.301 cGy, aiding risk assessment for patients.
Area of Science:
- Radiological Sciences
- Dental Imaging
- Radiation Dosimetry
Background:
- Routine dental radiography involves radiation exposure.
- Understanding absorbed doses in head and neck structures is crucial for risk assessment.
Purpose of the Study:
- To quantify absorbed radiation doses to head and neck structures during standard mandibular and maxillary occlusal radiography.
- To provide precise dose data for commonly used occlusal radiographic views.
Main Methods:
- Utilized thermoluminescent dosimetry (TLD) with a humanoid skull phantom.
- Investigated five specific occlusal radiographic projections: anterior mandibular, true mandibular, anterior maxillary, lateral maxillary, and maxillary vertex.
- Performed multiple exposures per view to ensure measurement accuracy.
Main Results:
- Absorbed doses ranged from 0.0014 cGy to 1.301 cGy per single occlusal exposure.
- Observed dose magnitudes were comparable to those reported for other dental radiography techniques.
- Highest absorbed doses were typically recorded at the skin entrance points.
Conclusions:
- This study offers accurate surface and internal absorbed radiation dose data for five occlusal radiographs.
- The findings support risk estimation calculations in dental radiography.
- Results can assist dental professionals in discussing radiation exposure with patients.
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