From The Doctors: Are Dental X-Rays Dangerous?

At Stanley Dentistry in Cary, NC, many of our patients have recently asked whether the benefits of getting dental x-rays (bitewings and PAs) outweigh their risks. With so much online discussion about radiation exposure, it’s understandable that people are cautious.

So, why the sudden worry? In short — the media. Much like the fluoride debate, everyone from social-media influencers to public figures has been questioning whether dental x-rays are necessary. Unfortunately, much of this fear isn’t based on science.

The Truth About Dental X-Rays and Radiation

Yes, dental x-rays expose you to a very small amount of radiation but so does simply living your everyday life. Radiation isn’t just in medical equipment or nuclear plants; it’s naturally present all around us.

This is called background radiation, and it comes from several sources: terrestrial, airborne, cosmic, and even from within our own bodies.

1. Airborne Radon

Radon is a naturally occurring radioactive gas that comes from the decay of uranium in the soil. It’s actually the largest contributor to background radiation exposure for most people.

Here in Cary, North Carolina, radon levels can vary by area. Homes in regions with higher radon levels need proper basement sealing and ventilation to stay safe. If you’re concerned, it’s a good idea to have your home tested.

2. Cosmic Radiation

Radiation from outer space called cosmic radiation constantly reaches Earth. People who live at higher elevations or fly frequently are exposed to slightly more of it.

Even so, the levels are very small. Two hours on an airplane equals about 1 millirem (mrem) which is a fraction of what’s considered harmful.

3. Ingested Elements

Did you know that even your body gives off a tiny bit of radiation? Naturally occurring elements like potassium and carbon have radioactive isotopes. This “internal radiation exposure” is normal and unavoidable.

4. Everyday Sources of Radiation

Many everyday objects and materials give off small amounts of radiation, including:

• Cigarettes (for smokers, the largest contributor)
• Granite countertops
• Bananas and Brazil nuts
• Smoke detectors
• Stone or brick homes

These levels are extremely low and harmless compared to medical imaging.

How Do Dental X-Rays Compare?

When it comes to dental x-rays, the amount of radiation is incredibly small. Here’s how it stacks up:

• Dental x-ray: about 0.5 mrem
• Chest CT scan: about 1,000 mrem
• Living in a stone house for a year: about 7 mrem

In other words, getting dental x-rays in Cary, NC at Stanley Dentistry exposes you to less radiation than you get from your natural environment in a single day.

And the benefits far outweigh the risks. Dental x-rays allow our team to detect tooth decay, infections, bone loss, and other oral health issues before they become serious. They can mean the difference between a small filling and a major procedure like a root canal or extraction.

The Bottom Line from Stanley Dentistry

Low-level radiation exposure happens every day — and it’s not something you should be afraid of. What matters most is maintaining good overall health:

• Eat a balanced diet
• Get enough rest
• Visit your Cary dentist regularly

Skipping essential dental x-rays can allow small dental problems to go unnoticed until they become painful and expensive to treat.

At Stanley Dentistry, we use modern digital x-ray technology that emits significantly less radiation than traditional film x-rays — while providing sharper, faster results. Your safety and comfort are always our top priorities.

Looking for a trusted family dentist in Cary, NC?
Contact Stanley Dentistry today to schedule your next checkup or ask about our low-radiation digital dental x-rays. Our experienced team is here to help you maintain a healthy, confident smile.

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