An article was recently released to the public stating that dental X-rays contribute to a type of brain cancer. After reading an article like this, your first thought may be to avoid dental X-rays, but you may want to hold off on that quick judgment. As with any treatment we offer at Morrow, Lai & Edwards Pediatric Dentistry, education is your most valuable tool in deciding what is best for you.
How often dental X-rays are taken is based on risk for infection, physical symptoms, and clinical findings. The American Dental Association (ADA) is a governing body over the dental profession. The ADA states, “ . . . healthy adults receive routine mouth X-rays every two to three years. Dental X-rays are recommended every one to two years for children and every 1.5 to three years for teens. Children often require more X-rays than adults because of their developing teeth and jaws and increased likelihood for cavities.” 
The article summarized, “The chance of these tumors arising in patients who were X-rayed yearly was low,” he notes in a news release. “Nonetheless, dentists and their patients should strongly consider obtaining X-rays less often than yearly unless symptoms suggest the need for imaging.” The article was also described as flawed because of inconsistent supporting evidence.
Caries risk category often determines how often dental X-rays are taken. The most recent documented resource to determine a caries risk is Caries Management by Risk Assessment (CAMBRA). This was adopted by the ADA and is used by dental professionals giving interval recommendations for X-rays.
With knowledge of your risk for dental infection, you will be informed by Drs. Mark Morrow, April Lai, and Kerry Edwards of the interval at which dental X-rays should be taken. You can rest assured that the standards published by the ADA have been researched extensively and are there to protect your personal health and safety.
Dental X-rays are most commonly digital, which significantly reduces exposure. There is more radiation exposure from the sun or in an airplane than in a dental X-ray. It is common practice to use a lead apron with a thyroid collar for protection during X-ray exposure.
Having a cavity means having an active, potentially harmful infection. Diagnosing such infection with minimal exposure through digital dental X-rays at our Tulsa, OK office does more good than harm.