The results can not prove that radiation causes cancer imaging, and the results are based on people who were exposed likely that higher levels of dental X-ray radiation that most are today.
“It is possible that the effect of the association we see here is a past exposure, and previous exposure was much higher,” said Dr. Elizabeth Claus, author of the study and the Yale School of Medicine in New Haven, Connecticut teacher.
Claus and colleagues write journal Cancer that dental radiographs are the most common source of exposure to ionizing radiation – which is associated with meningioma in the past – but most studies of the relationship is based on people who were exposed to atomic bombs or had radiation therapy.
There have been some studies examining a dental X-ray, but they were years ago and involved fewer people than the current study, Klaus said. However, in general agreed with the new findings.
Their study, the team of Klaus 1,433 people diagnosed with intracranial meningioma – tumor formed in the tissues covering the brain, from May 2006 to April 2011th All participants were diagnosed when they were between 20 and 79 years old and all were from Connecticut, Massachusetts, North Carolina or Houston or San Francisco Bay Area.
By way of comparison, the researchers followed 1,350 people who had the same age, sex and residence of the study group, but were not diagnosed with cancer.
The study looked at how often people had three different types of dental radiographs. They contain a concentrated image of an area, with a mouth full of images and a series of panoramic views of the entire mouth. Also known as dental jargon bite, a mouthful and Panorex films, respectively.