Ionizing radiation is a well-established risk factor for
cancer.1–7 However, despite the fact that most dental
offices and clinics have x-ray machines that are in
frequent use,8 the exposure of dental workers to ionizing
radiation and the associated potential cancer risk have been
assessed in only a few studies. It appears that there has been
a downward trend in the occupational dose of ionizing radiation
received by dental workers, which provides evidence
of the efficacy of radiation protection measures.9,10
Nonetheless, concerns remain about total-body radiation
dose and the risk of cancer11,12; for example, one study
suggested that dentists and dental assistants were at
increased risk of papillary thyroid cancer.13
The purpose of this study was to determine the occupational
doses of ionizing radiation and to examine possible
associations with mortality rates and cancer incidence in a
Ionizing radiation is a well-established risk factor for
cancer.1–7 However, despite the fact that most dental
offices and clinics have x-ray machines that are in
frequent use,8 the exposure of dental workers to ionizing
radiation and the associated potential cancer risk have been
assessed in only a few studies. It appears that there has been
a downward trend in the occupational dose of ionizing radiation
received by dental workers, which provides evidence
of the efficacy of radiation protection measures.9,10
Nonetheless, concerns remain about total-body radiation
dose and the risk of cancer11,12; for example, one study
suggested that dentists and dental assistants were at
increased risk of papillary thyroid cancer.13
The purpose of this study was to determine the occupational
doses of ionizing radiation and to examine possible
associations with mortality rates and cancer incidence in a
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