0.005
mSv per dental X-ray
0.04
mSv on a 3-hr flight
80%
less radiation with digital
What X-Rays Catch That Exams Can't
Cavities between teeth — invisible to the naked eye
Bone loss from gum disease — often no symptoms until advanced
Infections at the tooth root — can spread without pain
Impacted teeth — especially wisdom teeth hiding under the gum
Cysts, tumors, and other abnormalities — rare but critical to catch early
Radiation: Real Numbers
Dental X-Ray
- +Single X-ray: 0.005 mSv
- +Full mouth series: 0.17 mSv
- +Less than a day of natural background radiation
- +Digital sensors reduce exposure 80%
Everyday Comparison
- –3-hour flight: 0.04 mSv
- –Chest X-ray: 0.1 mSv
- –Daily background radiation: 0.01 mSv
- –Annual background: 3.0 mSv
A single dental X-ray exposes you to less radiation than eating a banana. The risk of missing a hidden problem is far greater than the X-ray itself.
How Often You Need Them
Bitewings (cavity check): once a year for most adults
Full mouth series: every 3-5 years
Panoramic: as needed for implants, wisdom teeth, or orthodontics
New patient: a full set so Dr. Buchwald has a complete baseline
Questions about X-rays at your next visit? See what our checkups include or book your appointment.