Are Dental X-Rays Safe — and Do They Hurt?

Let’s answer the question every nervous patient secretly Googles.

Dental X-rays are fast, safe, and — no — they don’t hurt. But there’s a bit more to it, especially if you’re concerned about radiation or how often you need them.

Are Dental X-Rays Safe?

Yes. Modern dental X-rays use a very small amount of radiation — typically less than what you’d get from a short domestic flight.

Digital X-rays (which most clinics now use) can reduce exposure by up to 80% compared to old film-based systems.

Clinics also use protective lead aprons and thyroid collars as an extra layer of safety, especially for children or pregnant patients.

How Much Radiation Is in a Dental X-Ray?

• Bitewing X-ray: ~0.005 mSv
• Panoramic X-ray: ~0.01–0.02 mSv
• CBCT scan: 0.05–0.2 mSv depending on settings

For comparison, the average Australian receives about 1.5–2.0 mSv of background radiation per year just by being alive.

Do Dental X-Rays Hurt?

Nope. They don’t hurt. Intraoral X-rays might feel a bit awkward or make you gag slightly, especially with larger sensors, but there’s no pain involved. It’s over in seconds. Most patients don’t even realise it’s happening.

How Often Should You Get Dental X-Rays?

• New patients: Often require a full set to establish a baseline
• Routine check-ups: Bitewings every 1–2 years
• High-risk patients (e.g. gum disease, decay): Every 6–12 months
• Orthodontics or surgery planning: As needed (CBCT, ceph, panoramic)

Children may need them more often due to developing teeth and higher cavity risk. But dentists always weigh the benefit before recommending X-rays.

Our Take

Dental X-rays are safe, painless, and one of the most important tools dentists have. They let you spot problems before they become pain, expense, or regret.

Still unsure? Ask your dentist. A quick conversation can ease a lot of worry.