Experts questioning the X-Ray Study.
According to a study published in April it associated dental x-ray with brain tumors. This study stirred media attention and questions from experts on the study’s methodology. The study that was published in Cancer, (an American Cancer Society peer-reviewed journal) found that people with meningiomas (typically benign brain tumors) are more likely to report that they’ve had certain dental X-ray examinations in their lifetimes.
The American Dental Association has reviewed the study and notes that the show results relied on the individuals’ memories of having dental X-rays taken years earlier, Yet studies have also shown that the ability to recall information is often imperfect. Therefore, the results of studies that use this design can be unreliable because they are affected by what scientists call ‘recall bias.’”