Radiation dose measurement by electron spin resonance studies of tooth enamel in lime and non-lime consuming individuals from the Silchar region of northeast India.
J Radiat Res
; 50(6): 559-65, 2009 Nov.
Article
en En
| MEDLINE
| ID: mdl-19801889
Electron spin resonance (ESR) dosimetry of teeth is used extensively for dose estimation following exposure to radiation. The population inhabiting the northeast region of India is prone to different cancers of the head and neck, and their prevalence is several times the national average. The objective of this study was to determine the role of radiation in the causation of this high cancer incidence by performing ESR spectroscopic measurements of tooth samples collected from the general population living in and around the city of Silchar. Nineteen tooth samples were used, and the age of the patients was 13-60 years. The excess dose, determined by subtraction of the natural background dose from the dose absorbed by the enamel, was found to the extent of 123 +/- 43 mGy. However, the individual excess dose was found to be higher in subjects who consumed lime (5/6) than in non-lime-consuming subjects (2/13). It is not entirely clear if radiation is the cause of this excess cancer in this region of India. Therefore there is a need for wider studies including consideration of tobacco consumption as well as a larger number of samples for tooth enamel dosimetry.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Óxidos
/
Radiometría
/
Bioensayo
/
Carga Corporal (Radioterapia)
/
Compuestos de Calcio
/
Espectroscopía de Resonancia por Spin del Electrón
/
Esmalte Dental
Tipo de estudio:
Risk_factors_studies
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
Asia
Idioma:
En
Revista:
J Radiat Res
Año:
2009
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Reino Unido