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Dental X-Ray Causes Brain Tumor

Dental X-Ray Causes Brain Tumor

(ePharmaNews) - Dentists use X-ray repeatedly as an important diagnosis tool, but a recent study, which is the first of its kind, may force dentists to reconsider X-ray medical procedures.

The study in the US journal Cancer showed that people who get regular dental X-rays are more likely to suffer a common type of brain tumor; meningioma, which is a tumor that rises from the membranes suurounding the central nervous system. Most of the time, these tumors are benign and slow growing, but they can lead to disability or life-threatening conditions.
Dental patients today are exposed to lower radiation levels than they were in the past, but the research should prompt dentists and patients to double check the reasons and timing of dental X-rays, said Elizabeth Claus the study led author.

The researchers at Yale University School of Medicine, based their study on data from 1,433 US patients who were diagnosed with the tumors between the ages 20-79. For comparison, researchers compared the data with a control group of 1,350 individuals who had similar characteristics but have not been diagnosed with a meningioma.

The study showd that ,people diagnosed with meningioma who reported having a yearly bitewing exam were 1.4 times to 1.9 times as likely as a healthy control group to develop such tumors. A bitewing exam involves an X-ray film being held in place by a tab between the teeth.
Also, people who reported getting a yearly panorex exam -- in which an X-ray is taken outside the mouth and shows all the teeth on one film -- were 2.7 to three times more likely to develop cancer, said the study.

"The chance of these tumors arising in patients who were X-rayed yearly still was low. Nonetheless, dentists and their patients should strongly consider obtaining X-rays less often than yearly unless symptoms suggest the need for imaging" Claus said.
The American Dental Association's guidelines call for children to get one X-ray every one to two years; teens to have one every 1.5 to three years, and adults every two to three years.

اضغط هنا للقراءة باللغة العربية

Prepared by: Basel AlJunaidy
Translated by: Marcell Shehwaro

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