A trip to the dentist should mean cleaner teeth, not a higher cancer risk - yet some x-ray machines emit more than 4 times the radiation now deemed safe, say dentists at the University of North Carolina and UCLA.Ask yours if they use newer F-speed (instead of D-speed) film, as well as rectangular collimation (instead of round) to restrict beam size. Are you switching dentists? Show the new one your prior full-mouth series and question whether your bitewing x-rays will suffice.Like this article?
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