Retrospective radiation dosimetry using electron paramagnetic resonance in canine dental enamel

Rao F.H. Khan; J. Pekar; W. J. Rink; D. R. Boreham

doi:10.1016/j.apradiso.2004.08.031

Retrospective radiation dosimetry using electron paramagnetic resonance in canine dental enamel

Rao F.H. Khan, J. Pekar, W. J. Rink, D. R. Boreham

Division of Medical Physics

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Electron paramagnetic resonance (EPR) biodosimetry of human tooth enamel has been widely used for measuring radiation doses in various scenarios. We have now developed EPR dosimetry in tooth enamel extracted from canines. Molars and incisors from canines were cleaned by processing in supersaturated aqueous potassium hydroxide solution. The dosimetric signal in canine tooth enamel was found to increase linearly as a function of laboratory added dose from 0.44±0.02 to 4.42±0.22 Gy. The gamma radiation sensitivity of the canine molar enamel was found to be comparable to that of human tooth enamel. The dosimetric signal in canine enamel has been found to be stable up to at least 6 weeks after in vitro irradiation. A dosimetric signal variation of 10-25% was observed for canines ranging from in age 3 years to 16 year old.

Original language	English
Pages (from-to)	173-179
Number of pages	7
Journal	Applied Radiation and Isotopes
Volume	62
Issue number	2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.apradiso.2004.08.031
State	Published - Feb 2005

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title = "Retrospective radiation dosimetry using electron paramagnetic resonance in canine dental enamel",

abstract = "Electron paramagnetic resonance (EPR) biodosimetry of human tooth enamel has been widely used for measuring radiation doses in various scenarios. We have now developed EPR dosimetry in tooth enamel extracted from canines. Molars and incisors from canines were cleaned by processing in supersaturated aqueous potassium hydroxide solution. The dosimetric signal in canine tooth enamel was found to increase linearly as a function of laboratory added dose from 0.44±0.02 to 4.42±0.22 Gy. The gamma radiation sensitivity of the canine molar enamel was found to be comparable to that of human tooth enamel. The dosimetric signal in canine enamel has been found to be stable up to at least 6 weeks after in vitro irradiation. A dosimetric signal variation of 10-25% was observed for canines ranging from in age 3 years to 16 year old.",

author = "Khan, {Rao F.H.} and J. Pekar and Rink, {W. J.} and Boreham, {D. R.}",

note = "Funding Information: The authors wish to thank Chemical Biological, Radiological, and Nuclear, Research and Technology Initiative (CRTI) of Government of Canada for continued financial support of this research project. One of the authors Julius Pekar acknowledges the Natural Sciences and Engineering Research Council (NSERC) of Canada for providing him financial assistance.",

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AU - Khan, Rao F.H.

AU - Pekar, J.

AU - Rink, W. J.

AU - Boreham, D. R.

N1 - Funding Information: The authors wish to thank Chemical Biological, Radiological, and Nuclear, Research and Technology Initiative (CRTI) of Government of Canada for continued financial support of this research project. One of the authors Julius Pekar acknowledges the Natural Sciences and Engineering Research Council (NSERC) of Canada for providing him financial assistance.

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N2 - Electron paramagnetic resonance (EPR) biodosimetry of human tooth enamel has been widely used for measuring radiation doses in various scenarios. We have now developed EPR dosimetry in tooth enamel extracted from canines. Molars and incisors from canines were cleaned by processing in supersaturated aqueous potassium hydroxide solution. The dosimetric signal in canine tooth enamel was found to increase linearly as a function of laboratory added dose from 0.44±0.02 to 4.42±0.22 Gy. The gamma radiation sensitivity of the canine molar enamel was found to be comparable to that of human tooth enamel. The dosimetric signal in canine enamel has been found to be stable up to at least 6 weeks after in vitro irradiation. A dosimetric signal variation of 10-25% was observed for canines ranging from in age 3 years to 16 year old.

AB - Electron paramagnetic resonance (EPR) biodosimetry of human tooth enamel has been widely used for measuring radiation doses in various scenarios. We have now developed EPR dosimetry in tooth enamel extracted from canines. Molars and incisors from canines were cleaned by processing in supersaturated aqueous potassium hydroxide solution. The dosimetric signal in canine tooth enamel was found to increase linearly as a function of laboratory added dose from 0.44±0.02 to 4.42±0.22 Gy. The gamma radiation sensitivity of the canine molar enamel was found to be comparable to that of human tooth enamel. The dosimetric signal in canine enamel has been found to be stable up to at least 6 weeks after in vitro irradiation. A dosimetric signal variation of 10-25% was observed for canines ranging from in age 3 years to 16 year old.

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JF - Applied Radiation and Isotopes

IS - 2 SPEC. ISS.

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Retrospective radiation dosimetry using electron paramagnetic resonance in canine dental enamel

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