Effect of roentgen-ray irradiation from a modern dental x-ray unit on the red and white blood cell count and on growth in the rat

摘要: During the past decade there has been increasing interest in potentially harm ful effect of too frequent exposure to roentgen rays. T he dental profession specifically implicated by some workers since many members pro­ fession advocate yearly roentgen-ray ex­ amination. The num ber roentgenograms taken American dentists course a year is enormous. I t esti­ m ated tha during week April 16 22, 1950, 1,600,000 were .1 problem complicated increased body radiation as result atomic and hydrogen bomb tests. Taken collectively, geneticists2 have pressed concern benefits derived through use rays are not compensated for ef­ fects which will further genera­ tions. However, recent evidence Budowsky others3 indicated that no significant hematologic changes clinical importance noted between findings before after full outh roentgenographic exam ina­ tion consisting 14 periapical roent­ genograms. In order gain more knowledge concerning effects irradiation produced x-ray unit, study total red white blood cells rats was con­ ducted. This prelim inary work involved on growth rat, pictures known occur with small an am ount 5 r ,4 thus may be considered sensitive indicator radiation.