|Research found having a 'bitewing' X-ray at least once a year raised the odds of developing a brain tumour by between 40 and 90 per cent depending on age. [Agencies]|
Dental X-rays, given to millions of Britons each year, may raise their odds of developing a brain tumor, the Daily Mail reported.
A large-scale study found that men and women with the type of tumor that can affect personality, sight, speech and even paralyze one side of the body, were twice as likely to have had the most common form of dental X-ray than those who were free of the disease.
With another type of tooth X-ray, children appeared to be most vulnerable, putting those regularly exposed to the low-dose radiation while under the age of ten, at almost five times greater risk. （点击《每日邮报》查看原文）
(China.org.cn April 12, 2012)