Dental X-rays during pregnancy: are they safe for the baby?
A clinically necessary dental X-ray is considered safe in pregnancy because the dose reaching the baby is negligible. Here is what professional bodies recommend, which images can wait, and what to know when breastfeeding.
"Can I have a dental X-ray while pregnant?" is one of the questions expectant mothers ask most. The worry about radiation and the baby is completely understandable, but the scientific answer is more reassuring than many expect: when a dental X-ray during pregnancy is clinically needed, it is considered safe with modern equipment, because the beam is aimed at the head and jaws and the dose reaching the uterus is negligible. Here we explain what that reassurance is based on, which images are better postponed until after delivery, and what to tell us before your scan.
Why dental care should not be put off without reason
Hormonal changes make the gums more sensitive during pregnancy, and gum inflammation is common. Toothache, an abscess or an untreated infection can be more of a problem for the mother — and therefore the baby — than a low-dose image. Dentists often need an X-ray to diagnose these problems, which is why professional bodies stress that concern about radiation should not prevent necessary imaging in pregnancy.
How much radiation reaches the baby?
In dental imaging the beam is narrow and directed at the mouth and jaws; the uterus is not in its path. Only a tiny amount of scattered radiation reaches it. Conservative estimates put the fetal dose from a dental X-ray at no more than about one microgray.
For context, the American College of Obstetricians and Gynecologists (ACOG) states that doses below 50 mGy (50,000 microgray) have not been associated with an increase in fetal anomalies or pregnancy loss, and that no single diagnostic study, medical or dental, reaches that level. Put simply, a dental X-ray is thousands of times below the level of concern.
The table below shows approximate effective doses to the mother; the dose reaching the baby is far lower still:
| Examination | Approximate dose to the mother | Background equivalent |
|---|---|---|
| Periapical (single tooth) | about 5 µSv | less than a day |
| Bitewing | about 5 µSv | less than a day |
| Panoramic | about 16 µSv | about 2–3 days |
| Small-field CBCT | about 50 µSv | about a week |
Compare other examinations with the radiation calculator.
What do professional bodies recommend?
- ACOG: radiation from a single diagnostic procedure does not harm the fetus, and concern about radiation should not prevent medically indicated imaging.
- American Dental Association (ADA): its 2024 recommendations state that, with modern digital equipment and a beam restricted to the area of interest, routine lead aprons and thyroid collars are no longer needed for any patient, including pregnant women — they can block the primary beam and lead to retakes. If you have questions about shielding, ask the technician before your scan.
- ALARA: even so, every exposure must be clinically justified and kept as low as reasonably achievable — a principle applied with extra care in pregnancy.
Which images go ahead, and which can wait?
The rule is simple: imaging needed to diagnose and treat a current problem goes ahead; imaging for elective treatment usually waits until after delivery.
- Usually done: periapical or bitewing images for toothache, infection, abscess or trauma, and a panoramic X-ray when clinically needed.
- Usually postponed: imaging for implant planning, starting orthodontics, cosmetic work and routine check-ups without symptoms.
- CBCT: because its dose is higher than 2D imaging, it is used in pregnancy only when the result directly affects an essential treatment decision.
The final decision rests with your treating dentist, in consultation with your obstetrician where needed.
The best time for dental work in pregnancy
Emergencies such as severe pain or infection are treated at any stage. For non-urgent care, the second trimester is usually the most comfortable time: early nausea has eased, and sitting in the dental chair is not yet difficult. In late pregnancy lying flat on your back can cause dizziness — tell us if you feel this.
What to tell us before your scan
- that you are, or may be, pregnant — and how many weeks, if you know
- nausea or a strong gag reflex, so the technician can choose the most comfortable approach for intraoral sensors
- dizziness or discomfort when standing for a while
- any previous dental images, which can sometimes make a repeat unnecessary
For other preparation tips, read how to prepare for your imaging appointment.
Dental X-rays while breastfeeding
X-ray imaging leaves nothing radioactive in the body and has no effect on breast milk. You can have dental X-rays as usual while breastfeeding, with no need to pause or discard milk.
Frequently asked questions
Is a dental X-ray in the first trimester risky?
The same principle applies throughout pregnancy: the dose reaching the baby is negligible. Necessary images go ahead; elective ones are usually postponed.
I had a dental X-ray before I knew I was pregnant. Should I worry?
No. The dose from a dental X-ray is far below any level associated with harm. If you are still worried, talk to your doctor.
Is CBCT allowed in pregnancy?
Its dose is higher than 2D images, so it is usually postponed unless the result is essential for an urgent treatment decision.
Do I need to wear a lead apron?
The ADA no longer recommends routine lead aprons or thyroid collars for any patient. Our technician can explain the centre's approach if you have questions.
Summary
When a dental X-ray is needed to diagnose a problem during pregnancy, it involves a very low dose and is considered safe with modern digital equipment — while delaying treatment of a dental infection can carry more risk. Imaging for elective treatment usually waits until after delivery. The most important thing you can do is tell your dentist, and us, that you are pregnant.
This article provides general information and does not replace advice from your dentist or physician.