Evaluation of the radiation protection effectiveness of a lead-free homopolymer in cone beam computed tomography.

Autor: Sarıbal GŞ; Research Assistant, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Erciyes University, Kayseri, Turkey. Electronic address: G.sirin20@gmail.com., Canger EM; Associate Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Erciyes University-Kayseri, Turkey., Yaray K; Department of Radiation Oncology, University of Erciyes Faculty of Medicine, Kayseri, Turkey.
Jazyk: angličtina
Zdroj: Oral surgery, oral medicine, oral pathology and oral radiology [Oral Surg Oral Med Oral Pathol Oral Radiol] 2023 Jul; Vol. 136 (1), pp. 91-101. Date of Electronic Publication: 2023 Feb 07.
DOI: 10.1016/j.oooo.2023.01.011
Abstrakt: 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.
(Copyright © 2023 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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