Dental treatment while breastfeeding: local anaesthesia, X-rays, tooth extraction, general anaesthesia and whitening

Can you have dental treatment while breastfeeding?

You can have dental treatment while breastfeeding: the UK’s National Health Service (NHS) states plainly that a breastfeeding mother can have dental treatment, local anaesthetics and most operations. The Academy of Breastfeeding Medicine (ABM) points out that many women are told, without need, to express and discard their milk after imaging tests.

At every visit, tell the dentist that you are breastfeeding, how many months old your baby is and whether the baby was born prematurely. The NHS advises telling anyone who recommends medicines that you are breastfeeding. The baby’s age also matters to the anaesthesiologist, should general anaesthesia be needed.

The table brings together the most common procedures. The rules for treatment during pregnancy, which are different, are described in a separate article on dental treatment in pregnancy.

Dental anaesthetic and breastfeeding: can you feed straight away?

After a local anaesthetic at the dentist you can breastfeed straight away, without expressing or discarding milk. LactMed, the database of the US National Library of Medicine, states that lidocaine levels in milk are low, even after high doses of local anaesthetic, and that the baby absorbs it poorly; no special precautions are needed.

The same goes for articaine, which is widely used in dentistry: according to LactMed, its low transfer into milk means that a single dose given while breastfeeding is unlikely to harm the baby. ABM Protocol #15 adds that local anaesthetics are poorly absorbed from the digestive tract and do not pass easily into milk.

A numb lip does not get in the way of breastfeeding, but it makes eating and drinking harder for the mother herself, so hot drinks are best left until feeling returns. In practice it is often easier to feed the baby just before the visit, so that the procedure does not fall at feeding time.

Dental X-rays, panoramic X-rays and CT scans while breastfeeding

Dental X-rays, including the panoramic radiograph (pantomogram), do not require a break in breastfeeding. ABM Protocol #31 from 2019 states that the radiation used to take an image does not affect the milk itself, and recommends not interrupting breastfeeding after X-rays or computed tomography.

Doses in dentistry are small: a single intraoral X-ray is typically below 1.5 µSv, and a panoramic X-ray 2.7 to 24.3 µSv, compared with natural background radiation in Poland of about 7 µSv a day. Cone beam computed tomography (CBCT) gives higher doses and is performed when its result changes the treatment.

Nuclear medicine scans, in which radioactive substances are administered, are a different matter; these are not performed in a dental practice.

Tooth extraction, root canal treatment and medicines after a procedure

A tooth extraction while breastfeeding does not require a break in feeding. ABM Protocol #15 states that mothers who have had a tooth extracted or another short procedure, with single doses of sedatives and painkillers, can breastfeed as soon as they are awake and well.

Root canal treatment, fillings and professional cleaning are carried out during breastfeeding in the same way as in other adults, because compatibility with breastfeeding depends on the medicines used, not on the procedure itself. Painkillers after a procedure are chosen by a doctor or pharmacist: many common medicines are compatible with breastfeeding, and the NHS stresses that very few medicines are unsafe at this time.

Some commonly used medicines are, however, not recommended while breastfeeding, so do not reach for remedies from your home medicine cabinet without advice. If an antibiotic is needed, it is chosen by a doctor who knows that you are breastfeeding.

Nitrous oxide and general anaesthesia while breastfeeding

After sedation with nitrous oxide you can breastfeed without waiting and without discarding milk. LactMed explains that the gas leaves the mother’s body very quickly and is not absorbed by the baby.

Breastfeeding can also continue after general anaesthesia. The 2020 guidelines of the UK’s Association of Anaesthetists recommend supporting breastfeeding as soon as the woman is alert and able to feed, without discarding milk, and they note that 24-hour breaks and discarding milk may contribute to breastfeeding ending earlier.

The exception may be a newborn, especially a premature baby or one at risk of apnoea (pauses in breathing): ABM Protocol #15 then allows a short break of 6 to 12 hours, so it is worth expressing a supply of milk in advance. Dental treatment under general anaesthesia is a medical decision made after qualification; when it is used is described in separate articles on general anaesthesia.

Can you whiten your teeth while breastfeeding?

Teeth whitening during breastfeeding has not been studied, and the NHS advises postponing it. At the same time, LactMed considers it unlikely that the carbamide peroxide in whitening products enters the bloodstream, and if it were absorbed, it would break down into urea and hydrogen peroxide, which occur naturally in milk.

According to LactMed, using such a product as directed is not a reason to stop breastfeeding. The EU rules on whitening, which limit the concentration of hydrogen peroxide and require the first treatment to be carried out by a dentist, do not mention breastfeeding.

Whitening is a cosmetic procedure, so postponing it carries no health risk. If you are considering it while breastfeeding, discuss it with a dentist, who will assess the condition of your teeth and gums.

The dentist after childbirth: what does the NFZ cover in the postpartum period?

In the postpartum period, a woman is entitled on the NFZ, Poland’s National Health Fund, to a wider scope of dental treatment than other adults: root canal treatment on all teeth, scaling no more often than every 6 months and a check-up no more often than once a quarter. According to the perinatal care standard, the postpartum period lasts 6 weeks from the birth. Legal position as of 18 October 2026.

The same standard provides that, during home visits, the midwife tells the mother about the need to see a dentist by the 6th week after the birth. The dental regulation names the pregnancy record card (karta przebiegu ciąży) as the document for pregnant women, but names no document for the postpartum period, so it is worth asking the practice with an NFZ contract what will be needed.

No referral to a dentist is needed. Women during pregnancy, childbirth and the postpartum period who have Polish citizenship and live in Poland are entitled to these services even without insurance.

Gums and tooth decay after pregnancy: what to watch for?

Hormones can intensify gum inflammation caused by bacterial plaque, and according to the 2018 classification of periodontal diseases such inflammation subsides when the plaque is removed regularly. If your gums still bleed when you brush after the birth, it is a sign to brush more thoroughly and book a check-up, not to avoid the sore areas.

The Polish working group on prevention in pregnant women recommends check-ups every 6 months after childbirth if no treatment is needed. The same expert recommendations point out that tooth decay in the mother increases the risk of early childhood caries, because a child picks up caries-causing bacteria mainly from the parents, especially the mother.

Treating your own cavities is therefore also prevention for your child. How to protect a baby’s teeth from the first tooth onwards is described in the article on tooth decay in children.

How it works at DentalBlue

At DentalBlue in Białystok, it is worth mentioning that you are breastfeeding when you book, so that the doctor can take it into account when planning anaesthesia and medicines. X-rays, from intraoral images to panoramic X-rays, are taken in the clinic’s own radiology unit, and the services also include inhalation sedation with nitrous oxide.

In the clinic’s price list, anaesthesia costs 60 zł, a panoramic X-ray 120 zł and an intraoral X-ray 60 zł. The final scope and cost are set at the visit, and prices may change. The clinic is open Monday to Friday from 8:00 to 20:00 and on Saturdays from 8:00 to 16:00.