{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T16:38:22Z","timestamp":1784565502033,"version":"3.55.0"},"reference-count":27,"publisher":"Oxford University Press (OUP)","issue":"20","license":[{"start":{"date-parts":[[2024,10,13]],"date-time":"2024-10-13T00:00:00Z","timestamp":1728777600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,12,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>In this paper, the effect of thyroid collars on radiation dose during dental cone-beam computed tomography (CBCT) was evaluated using Monte Carlo simulations and to calculate the effective dose underestimated for the actual CBCT examination due to accounting only for the head and neck. Three thyroid collar models that covered the surface of the phantom were established according to the International Commission on Radiological Protection (ICRP) adult-male mesh-type reference computational phantoms, and a Particle and Heavy Ion Transport code System was used to calculate the equivalent and effective doses of ICRP phantom when different thyroid shielding protocols were used in NewTom VGi evo CBCT, considering one medium (12\u00a0\u00d7\u00a08\u00a0cm) and one small (8\u00a0\u00d7\u00a05\u00a0cm) fields of view (FOVs), and two centre positions were used for each FOV. In four CBCT scanning scenarios, thyroid shielding reduced the equivalent dose for many tissues. The results indicate that the portion of the thyroid collar that wraps around the neck has the main role in reducing the effective dose during dental CBCT examinations, and the higher the axial level of the top of the shielding, the better the effectiveness of the shielding. In this study, the underestimation of the effective dose due to considering only the head and neck was 3.1%\u20138.1%, and the underestimation was more pronounced in larger FOVs.<\/jats:p>","DOI":"10.1093\/rpd\/ncae206","type":"journal-article","created":{"date-parts":[[2024,10,14]],"date-time":"2024-10-14T00:57:42Z","timestamp":1728867462000},"page":"1971-1980","source":"Crossref","is-referenced-by-count":3,"title":["Monte Carlo simulation study of the effect of thyroid shielding on radiation dose in dental cone beam CT in an adult male phantom"],"prefix":"10.1093","volume":"200","author":[{"given":"Guolin","family":"Chen","sequence":"first","affiliation":[{"name":"Suzhou Stomatological Hospital , Gusu District, Suzhou 215000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuchen","family":"Yin","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Radiation Medicine and Protection , School of Radiation Medicine and Protection, , Suzhou Industrial Park, Suzhou 215123 ,","place":["China"]},{"name":"Soochow University , School of Radiation Medicine and Protection, , Suzhou Industrial Park, Suzhou 215123 ,","place":["China"]},{"name":"Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions , Suzhou Industrial Park, Suzhou 215123 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liang","family":"Sun","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Radiation Medicine and Protection , School of Radiation Medicine and Protection, , Suzhou Industrial Park, Suzhou 215123 ,","place":["China"]},{"name":"Soochow University , School of Radiation Medicine and Protection, , Suzhou Industrial Park, Suzhou 215123 ,","place":["China"]},{"name":"Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions , Suzhou Industrial Park, Suzhou 215123 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zichun","family":"Tang","sequence":"additional","affiliation":[{"name":"Suzhou Stomatological Hospital , Gusu District, Suzhou 215000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-9025-7537","authenticated-orcid":false,"given":"Jianguo","family":"Chen","sequence":"additional","affiliation":[{"name":"Suzhou Stomatological Hospital , Gusu District, Suzhou 215000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2024,10,13]]},"reference":[{"key":"2024121023334061900_ref1","doi-asserted-by":"publisher","first-page":"1558","DOI":"10.1007\/s003300050586","article-title":"A new volumetric CT machine for dental imaging based on the cone-beam technique: preliminary results","volume":"8","author":"Mozzo","year":"1998","journal-title":"Eur 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