ArticleJournal of applied clinical medical physics2016
Dosimetric impact of dental metallic crown on intensity-modulated radiotherapy and volumetric-modulated arc therapy for head and neck cancer.
Article in Journal of applied clinical medical physics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 31 citations in OpenAlex.
- Dose calculation accuracy with extended CT scales near metal: phantom-patient evaluation using a beam-metal overlap metric.Radiation oncology (London, England) · 2026Article
- Dosimetric impact of endoscopic titanium clips in photon and proton radiotherapy for esophageal cancer.Frontiers in oncology · 2026Article
- Impact of amalgam dental filling on radiotherapy of head and neck cancer: In vivo dosimetry and dose calculation using AAA and Acuros algorithms.Journal of applied clinical medical physics · 2025Article
- The accuracy of Eclipse AXB and AAA dose algorithms with dental amalgam.Physical and engineering sciences in medicine · 2024Article
- In vitro and in silico study of biological effects on cancer cells in the presence of metallic materials during radiotherapy.Journal of radiation research · 2024Article
- Evaluation of computed tomography metal artifact and CyberKnife fiducial recognition for novel size fiducial markers.Journal of applied clinical medical physics · 2023Article
- The Relationship between the Contouring Time of the Metal Artifacts Area and Metal Artifacts in Head and Neck Radiotherapy.Tomography (Ann Arbor, Mich.) · 2023Article
- Comparison of methods for the handling of metallic dental restorations before head and neck radiotherapy.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2022Article
- A cost-minimization analysis of measures against metallic dental restorations for head and neck radiotherapy.Journal of radiation research · 2021Article
- Effect of dental metal artifact conversion volume on dose distribution in head-and-neck volumetric-modulated arc therapy.Journal of applied clinical medical physics · 2020Article
- Evaluation of multi-institutional end-to-end testing for post-operative spine stereotactic body radiation therapy.Physics and imaging in radiation oncology · 2020Article
- Clinical usefulness of MLCs in robotic radiosurgery systems for prostate SBRT.Journal of applied clinical medical physics · 2017Article
- Utility of intraoral stents in external beam radiotherapy for head and neck cancer.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation OncologyArticle
- Are intraoral customized stents still necessary in the era of Highly Conformal Radiotherapy for Head & Neck cancer? Case series and literature review.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation OncologyArticle
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Authors and funding
11 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Metal dental restoration materials cause dose enhancement upstream and dose disturbance downstream of the high-density inhomogeneous regions in which these materials are used. In this study, we evaluated the impact of a dental metallic crown (DMC) on intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VMAT) for head and neck cancer. Additionally, the possibility of sparing the oral mucosa from dose enhancement using an individual intraoral mouthpiece was evaluated. An experimental oral phantom was designed to verify the dosimetric impact of a DMC. We evaluated the effect on single beam, parallel opposing beam, arc beam, IMRT, and VMAT treatment plans. To evaluate the utility of a 3-mm-thick intraoral mouthpiece, the doses across the mouthpiece were measured. For single beam irradiation, the measured doses at the entrance and exit planes of the DMC were 51% higher and 21% lower than the calculated dose by the treatment planning system, respectively. The maximum dose enhancements were 22% and 46% for parallel opposing beams and the 90° arc rotation beam, respectively. For IMRT and VMAT, the measured doses adjacent to the DMC were 12.2% ± 6.3% (mean ± 1.96SD) and 12.7% ± 2.5% higher than the calculated doses, respectively. With regard to the performance of the intraoral mouthpiece for the IMRT and VMAT cases, the disagreement between measured and calculated doses at the outermost surface of the mouthpieces were -2.0%, and 2.0%, respectively. Dose enhancements caused by DMC-mediated radiation scattering occurred during IMRT and VMAT. Because it is difficult to accurately estimate the dose perturbations, careful consideration is necessary when planning head and neck cancer treatments in patients with DMCs. To spare the oral mucosa from dose enhancement, the use of an individual intraoral mouthpiece should be considered.
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