X-Rays During Pregnancy: What Applies at the Dentist?
Few situations create as much anxiety as the combination of pregnancy and an X-ray machine. The most important message first: a dental X-ray is no cause for fear during pregnancy — the dose that reaches the unborn child is vanishingly small.
Why the dose to the baby is so low
Dental imaging irradiates a small area of the head. The uterus lies far outside the beam; only a tiny fraction of scattered radiation arrives there — typically less than a thousandth of a millisievert, less than the child receives in a single day from natural background radiation anyway. The American Dental Association and the American College of Obstetricians and Gynecologists agree: medically justified imaging outside the abdomen can be performed during pregnancy.
What still applies
- Tell the practice. Let every physician and dentist know you are pregnant (or could be). It’s part of the justification check.
- Postpone what can wait. Pure routine and check-up images with no acute reason are often simply moved past the due date — not because they’re dangerous, but because there’s no hurry.
- Treat what needs treating. An untreated dental infection is a real risk for mother and child; the theoretical radiation risk of a single image is not. Necessary diagnostics shouldn’t be skipped out of fear.
What about bigger exams?
For imaging outside the abdomen and pelvis (teeth, jaw, hand, chest), the dose to the child remains minimal. Closer scrutiny only applies where the uterus sits in the beam — an abdominal CT, say. There, physicians weigh benefit and risk with extra care and switch to ultrasound or MRI where possible.
By the way: flying while pregnant is also unproblematic from a radiation standpoint — a long-haul flight gives the child less dose than a few weeks of ordinary life on the ground. (For flight crew, specific occupational rules apply — see Frequent flyers and crew.)
Sources
- ADA: Radiography safety recommendations, incl. pregnancy (2024)
- Image Gently: Dental imaging for children