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Study of dose distribution in dental radiology using the Monte Carlo Simulation; Estudo da distribuicao de dose em radiologia odontologica usando simulacao Monte Carlo

Conference:

Abstract

Full text: The purpose of this study was to study the absorbed dose in mouth due to scattering in teeth in dental radiography using the monte carlo simulation. The Electron Gamma Shower (EGS-4) system of computer codes was used, which is a general purpose package for monte carlo simulation of the coupled transport of electrons and photons in an arbitrary geometry for particles with energies above a few keV up to several TeV. In the case of a X ray dental the low energy photons beam, are removed of the spectrum by the filtration. These low energy photons beam do not contribute in the obtaining of the radiographic image, but they will be contribute in the dose to the patient, however when the incident radiation crosses the tooth it generates a scattering radiation that contributes in the dose received by the patient in the oral cavity (cheek, tooth and oral cavity). Dental radiography is one of the largest single groups of radiographic examination accounting for 32% of radiographs taken in the Brazil. A number of relatively recent improvements in technology, equipment and techniques have the potential to reduce patient radiation dose and improve image quality. To optimize radiation protection all  More>>
Authors:
Bonzoumet, S P.J.; Braz, D; Lopes, R T; [1]  Anjos, M J; [1]  Universidade do Estado do Rio de Janeiro, Rio de Janeiro (Brazil). Instituto de Fisica]; Barroso, R C.S. [2] 
  1. Nuclear Instrumentation Laboratory, COPPE/UFRJ, Rio de Janeiro (Brazil)
  2. Universidade do Estado do Rio de Janeiro, Rio de Janeiro (Brazil). Instituto de Fisica
Publication Date:
Nov 15, 2003
Product Type:
Conference
Report Number:
INIS-PE-042
Resource Relation:
Conference: 6. Regional Congress on Radiation Protection and Safety; 3. Iberian and Latin American Congress on Radiological Protection Societies; Regional IRPA Congress, 6. Congreso Regional sobre Seguridad Radiologica y Nuclear; 3. Congreso Iberoamericano de Sociedades de Proteccion Radiologica; Congreso Regional IRPA, Lima (Peru), 9-13 Nov 2003; Related Information: In: 6. Regional Congress on Radiation Protection and Safety; 3. Iberian and Latin American Congress on Radiological Protection Societies; Regional IRPA Congress. Book of abstracts, 6. Congreso Regional sobre Seguridad Radiologica y Nuclear; 3. Congreso Iberoamericano de Sociedades de Proteccion Radiologica; Congreso Regional IRPA. Libro de resumenes, 215 pages.
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; BIOMEDICAL RADIOGRAPHY; DENTISTRY; E CODES; ENERGY RANGE; MONTE CARLO METHOD; ORAL CAVITY; RADIATION DOSES; X RADIATION; X-RAY RADIOGRAPHY
OSTI ID:
20822777
Research Organizations:
Sociedad Peruana de Radioproteccion, Lima (Peru); Instituto Peruano de Energia Nuclear, Lima (Peru)
Country of Origin:
Peru
Language:
Portuguese; English
Other Identifying Numbers:
Other: ISBN 9972-899-38-1; TRN: PE0600041121812
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 84
Announcement Date:
Dec 30, 2006

Conference:

Citation Formats

Bonzoumet, S P.J., Braz, D, Lopes, R T, Anjos, M J, Universidade do Estado do Rio de Janeiro, Rio de Janeiro (Brazil). Instituto de Fisica], and Barroso, R C.S. Study of dose distribution in dental radiology using the Monte Carlo Simulation; Estudo da distribuicao de dose em radiologia odontologica usando simulacao Monte Carlo. Peru: N. p., 2003. Web.
Bonzoumet, S P.J., Braz, D, Lopes, R T, Anjos, M J, Universidade do Estado do Rio de Janeiro, Rio de Janeiro (Brazil). Instituto de Fisica], & Barroso, R C.S. Study of dose distribution in dental radiology using the Monte Carlo Simulation; Estudo da distribuicao de dose em radiologia odontologica usando simulacao Monte Carlo. Peru.
Bonzoumet, S P.J., Braz, D, Lopes, R T, Anjos, M J, Universidade do Estado do Rio de Janeiro, Rio de Janeiro (Brazil). Instituto de Fisica], and Barroso, R C.S. 2003. "Study of dose distribution in dental radiology using the Monte Carlo Simulation; Estudo da distribuicao de dose em radiologia odontologica usando simulacao Monte Carlo." Peru.
@misc{etde_20822777,
title = {Study of dose distribution in dental radiology using the Monte Carlo Simulation; Estudo da distribuicao de dose em radiologia odontologica usando simulacao Monte Carlo}
author = {Bonzoumet, S P.J., Braz, D, Lopes, R T, Anjos, M J, Universidade do Estado do Rio de Janeiro, Rio de Janeiro (Brazil). Instituto de Fisica], and Barroso, R C.S.}
abstractNote = {Full text: The purpose of this study was to study the absorbed dose in mouth due to scattering in teeth in dental radiography using the monte carlo simulation. The Electron Gamma Shower (EGS-4) system of computer codes was used, which is a general purpose package for monte carlo simulation of the coupled transport of electrons and photons in an arbitrary geometry for particles with energies above a few keV up to several TeV. In the case of a X ray dental the low energy photons beam, are removed of the spectrum by the filtration. These low energy photons beam do not contribute in the obtaining of the radiographic image, but they will be contribute in the dose to the patient, however when the incident radiation crosses the tooth it generates a scattering radiation that contributes in the dose received by the patient in the oral cavity (cheek, tooth and oral cavity). Dental radiography is one of the largest single groups of radiographic examination accounting for 32% of radiographs taken in the Brazil. A number of relatively recent improvements in technology, equipment and techniques have the potential to reduce patient radiation dose and improve image quality. To optimize radiation protection all reasonable means should be employed to minimize the dose of each exposure. Dentists therefore need to keep up to date with changes in techniques and equipment and modify their own practice. In preliminary analysis could be notice that the energy below the 30 keV (low energy) is deposited in the cheek. To 30 keV photons there is the maximum absorbed energy in the tooth (about 60%). In 40 keV could be notice that deposited energy is same to teeth and cheek, but up to 40 keV just a small part of energy is deposited, e.g., the great part of energy is transmitted to the inner mouth (oral cavity). (orig.)}
place = {Peru}
year = {2003}
month = {Nov}
}