Objective
The objective was to compare the radiation protection effectiveness of a lead-free
thermoplastic homopolymer (Anti-RAD) to conventional lead shielding in cone beam computed
tomography (CBCT) exposures.
Study Design
Thermoluminescent dosimeters were placed on a human bone- and soft tissue-equivalent
phantom to record equivalent doses in the thyroid gland, thyroid skin, and breast
areas. CBCT images were obtained with the following 3 protocols: (1) without radiation
shielding; (2) with 0.5-mm lead equivalent lead-containing shielding; and (3) with
0.5-mm lead equivalent Anti-RAD shielding. Independent t tests were used to evaluate the results.
Results
Compared with exposures without shielding, both lead and Anti-RAD protective devices
reduced thyroid gland equivalent doses by approximately 40%, thyroid skin doses by
approximately 75%, right breast skin doses by approximately 80%, and left breast skin
doses by 75%. The differences in equivalent dose for both types of shielding compared
with exposure with no shielding were statistically significant (P ≤ .042). However, there were no significant differences in dose reduction at any
site between lead and Anti-RAD shielding (P ≥ .135).
Conclusions
Radiation protection equivalent to lead can be provided with the Anti-RAD shield.
With the use of this material, disadvantages such as damage to the aprons, lead toxicity,
weight of lead aprons, and microbial contamination can be reduced.
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Article info
Publication history
Published online: February 06, 2023
Accepted:
January 28,
2023
Received in revised form:
December 26,
2022
Received:
May 31,
2022
Publication stage
In Press Journal Pre-ProofIdentification
Copyright
© 2023 Elsevier Inc. All rights reserved.
