Impact of different fixed dental prostheses on radiation dose in helical tomotherapy as measured with metal oxide semiconductor field-effect transistor dosimetry

Us, Songül Barlaz; Ataol, Ayse Seda; Ergün, Gülfem

doi:10.1016/j.oooo.2022.01.007

Cited by 1 publication

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Six metallic alloys, Ti-6Al-4 V, Co-Cr-Mo, Ni-Cr-Ti, NiCr, Co-Cr-Mo-W, and Ag3Sn-Hg (amalgam), were selected based on their widespread use in dental (and medical) applications. These metallic alloys are often contained in restorations, implants, and dental prostheses (Andrade et al 2019; Barlaz Us et al 2022). Since they are metallic materials, they can contribute significantly to the generation of a secondary radiation spectrum.…”

Section: Methodsmentioning

confidence: 99%

Influence of the Method of Calculating the Effective Atomic Number on the Estimate of Fluorescence Yield for Metal Alloys of Biomedical Interest

Garcia,

Souza,

Andrade

2024

Health Physics

View full text Add to dashboard Cite

This study evaluates the influence of the method used to calculate the effective atomic number (Zeff) on the estimate of secondary radiation yielded under kilovoltage x-ray beams by metal alloys with a wide range of biomedical applications. Two methods for calculating Zeff (referred to here as M1 and M2) are considered, and six metallic alloys are investigated: Ti-6Al-4 V, Co-Cr-Mo, Ni-Cr-Ti, Ni-Cr, Co-Cr-Mo-W, and Ag3Sn-Hg (amalgam). The results indicate significant differences in the estimates of fluorescence yield depending on the method used to estimate Zeff for each metallic alloy. Both the choice of the calculation method for Zeff and the energy ranges of the incident radiation are essential factors affecting the behavior of alloys in terms of fluorescence production. Our results may guide the selection of the best material for a biomedical application. The metallic alloys simulated here show equivalences and discrepancies that depend on the method used to estimate Zeff and the energy range of the incident photons. This finding allows for the creation of combinations of alloys and methods for calculating Zeff and the photon energy to maximize safety and minimize cost.

show abstract

Section: Methodsmentioning

confidence: 99%