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Investigating the Effect of Dental Implants on Radiotherapy Dose Distribution Using Mont Carlo Approach
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Tahmine Seif *    , F Seif , M Athari , MR Bayatiyani , S Bagheri |
| Department of Radiotherapy and Medical Physics, Arak University of Medical Sciences, Arak, I.R.Iran , t.seif122@gmail.com |
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Abstract: (3019 Views) |
BACKGROUND AND OBJECTIVE: Considering the presence of important organs in head and neck area, treatment of tumors which are existing in this area is very important. The existence of dental implants will effect on dose distribution in radiotherapy. The aim of the present research was to study the effect of dimensions and materials dental implants on radiotherapy dose distribution using the Monte Carlo method.
METHODS: In this research study a Varian 2100 C/D linear accelerator with energy of 6MV was simulated using the Monte Carlo Code (MCNP). Dental implants with length 1.5 cm and diameter 0.4 cm dimensions and length 1.3 cm and diameter 0.7 cm dimensions made of tantalum, steel stainless 3161, zirconium oxide, titanium alloy, oxide aluminum and polytetrafluoroethylene were added to the simulation program. Then, in order to assess the simulation correctness and accuracy, the results of Percentage Depth Dose and the dose profiles obtained from the simulation were compared with the experimental dosimetry.
FINDINGS: Dental implants with larger dimensions increased the dose by a maximum of 5.82%, 5.03%, 4.83%, 4.42%, 3.81%, and 3.54% for each of the six mentioned materials and showed larger changes than the smaller implant, and the tantalum genus produced the greatest heterogeneity over other materials.
CONCLUSION: According to the results of this study, the effect of dental implants on dose distribution in cancer patients under radiotherapy depends on its gender and cross section. |
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| Keywords: Radiotherapy dose distribution, Monte Carlo simulation, Dental implant |
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Full-Text [PDF 610 kb]
(930 Downloads)
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Type of Study: Research |
Subject:
Medical Physics
Received: 2018/01/15 | Accepted: 2018/07/23 | Published: 2018/09/10
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