Aim: The aim of this study is to evaluate the effects of occupational radiation exposure according to the device radiology workers use regarding bone mineral density and and serum alkaline phosphatase (ALP) levels Method: In our study, private and state hospitals at Kütahya centrum, low dose radiation occupational exposure in 49 radiology workers (conventional roentgen, tomography and mri) were compared with 40 non-exposed workers of the same hospitals in terms of bone mineral density and serum alkaline phosphatase levels. The bone mineral density (BMD) was assessed in the spine and the hip with a dual-energy x-ray absorptiometry (DEXA) instrument. Age and sex matched control groups were evaluated by T scores, commonly were used to assess osteoporosis. Result: According to the device they use, T-scores of radiology workers (in all groups) were lower than the control group meaningfully (p<0.01). Moreover, T-scores of mri workers was lower than conventional roentgen workers meaningfully (p<0.01). Respectively; MRI <Tomography< Conventional roentgen < Control. Regarding the device they use, serum ALP levels of roentgen and tomography workers were lower than control group meaningfully (p<0.05). Conclusion: it was determined that exposures of ionizing and nonionazing radiation has decreasing effect on bone mineral density and serum ALP levels of radiology workers.