You have a sore tooth or an overdue check-up, and you are breastfeeding. It is natural to wonder whether a numbing injection, an X-ray or a pain tablet could affect your baby.
The short answer
The Australian Breastfeeding Association says there is no need to stop breastfeeding or throw away expressed milk after a local anaesthetic. Sedation, general anaesthesia and take-home medicines need separate planning. At Absolute Dental, we ask you to list your medicines, supplements, conditions and allergies, so tell us you are breastfeeding when you book.
What treatment are we actually talking about?
The answer depends on what is planned, so start there. "Dental treatment" can mean a check-up and clean, X-rays, a filling that needs a numbing injection, a tooth removal, or a longer procedure where sedation is offered. Each raises different questions.
NSW Health's MotherSafe service, based at the Royal Hospital for Women, says in its November 2020 leaflet that routine dental checks, X-rays and procedures needing local anaesthetic are supported during breastfeeding. The leaflet also covers pregnancy and older medicine advice. We use only its breastfeeding dental-treatment statement here.
Breastfeeding alone does not prove that every procedure suits you. Your dentist still needs to look at your mouth, your health and the treatment being planned. If you are pregnant rather than breastfeeding, that is a different question. Our article on how pregnancy can affect your dental health covers it.
Local anaesthetic, sedation and general anaesthesia: what is the difference?
Three terms often get mixed up. healthdirect explains that a local anaesthetic numbs an area of the body without making you unconscious. That is the injection most people picture for a filling. The Australian Breastfeeding Association (ABA) draws the same line: local numbing is different from sedation or general anaesthesia, and the planning is not the same.
The table pairs each kind of care with a question worth asking. It is a conversation guide. It gives no doses and does not replace advice from your dentist, doctor or prescriber.
| Planned care | Question to ask |
|---|---|
| Check-up, clean or X-rays | Which X-rays, if any, do you recommend today, and why are they needed now? |
| Local anaesthetic (numbing injection) | Is local anaesthetic the only medicine planned for this visit? |
| Sedation | What medicine is planned, who will help me and my baby afterwards, and what are my personal instructions for feeding? |
| General anaesthesia | Who is giving the anaesthetic, and can they plan feeding with me before the day? |
| Take-home pain relief or antibiotics | Which medicine is it, who is prescribing it, and has it been checked against my breastfeeding and my baby's age and health? |
This article does not list sedation or general anaesthesia as services we provide. If either comes up, ask our team what is actually offered. If you are referred elsewhere, ask the treating team these questions directly.
Do you need to interrupt feeds or throw away milk?
For a local anaesthetic, the ABA's answer is direct. Its December 2025 guidance, Breastfeeding and anaesthesia, says:
There’s no need to stop breastfeeding or throw away expressed milk after a local anaesthetic.
Australian Breastfeeding Association, Breastfeeding and anaesthesia, 2025
That statement is about local anaesthetic. It is not a rule for every medicine. We list no waiting times here, because the right plan depends on what you are given. We also do not quote figures for how much of a drug reaches milk, because a general number does not tell you what applies to you and your baby.
If you are offered sedation or a stronger medicine, ask for your own feeding instructions before the day, not afterwards.
Why your baby's health and each medicine still matter
The ABA also says some situations need individual planning. These include babies born early or unwell, strong pain medicines, and recovery after sedation. In plain terms, your baby's age and health are part of the picture, along with the medicine itself.
That is why we think about two people, not one. When you book, tell us how old your baby is and whether they were premature or have health concerns. If you are unsure whether something matters, mention it anyway.
A few related points:
- A local anaesthetic, a take-home pain reliever and an antibiotic are three separate questions. Ask about each one.
- Do not stop or change a regular medicine because of a dental appointment. Talk to the doctor or other prescriber who gave it to you, and tell us what you take.
- If someone says a medicine is fine in general, ask whether that also applies to your baby's age and health.
Planning around feeds and getting to the appointment
Some planning is practical rather than medical.
- Think about timing. A time that fits your baby's usual routine can make the visit easier. Tell us when you book if feeding times matter to you.
- Ask about bringing your baby. We have not published details about this online, so ask the team when you call.
- Line up help. If sedation is proposed, arrange for another adult to be with you and to help with your baby, and get your personal instructions first.
- Allow time to talk. A few minutes to ask about the plan before treatment starts is time well spent.
How we approach your visit at Absolute Dental
Our patient information page explains what to bring and what happens first. Several parts matter if you are breastfeeding.
Before the visit, we ask you to write down what you take, supplements included, plus any conditions, allergies or past reactions to metals or dental materials. Add that you are breastfeeding and how old your baby is. You can also ask our team whether we should request your previous records and X-rays ahead of the visit.
At the first visit, you hear what we found and what your choices are, including waiting. We go over costs and materials before you decide. That gives you room to ask the feeding and medicine questions below before you agree to a plan.
Questions to ask before you leave
Take this list with you. You can ask the questions in any order.
- What treatment are you recommending, and why now?
- Which anaesthetic is planned: local anaesthetic only, or something else?
- Is any medicine being prescribed or recommended afterwards, and who checks it against breastfeeding?
- What are my other options?
- What will the treatment cost, and which materials will be used?
- What are my personal instructions for feeding my baby afterwards?
- Who do I call if I am unsure about something once I get home?
If you have worsening pain, swelling or a broken tooth, call us and describe the symptoms. We can talk about how soon you should be seen.
Your checklist before you book
- Say you are breastfeeding when you book.
- Note your baby's age, and whether they were premature or are unwell.
- Write down your medicines, supplements, allergies, conditions and any past reactions to dental materials.
- Ask which procedure and which anaesthetic is planned.
- Ask separately about any prescribed pain relief or antibiotics.
- If sedation is proposed, arrange help and get your personal instructions.
- Ask whether we should request your previous records and X-rays.
A sentence you can say when you call
You do not need to prepare a speech. Something like this is enough:
"Hello, I'm breastfeeding a baby who is [age]. I'd like to book [a check-up / an appointment for a sore tooth]. Could you tell me what to bring, and whether you'd like a list of my medicines?"
When to contact us
Call us on (08) 9321 6398 to book or to ask a question first. We are at 1/34 Outram St, West Perth WA 6000, and the contact page has directions. If you use the enquiry form, keep your message short and leave out detailed medical information. We can take the details by phone or at your visit.
Sources
- Breastfeeding and anaesthesia, Australian Breastfeeding Association (December 2025)
- Dental treatment in pregnancy and breastfeeding, NSW Health MotherSafe, Royal Hospital for Women (November 2020)
- Local anaesthetic, healthdirect Australia
- Patient information and Contact us, Absolute Dental West Perth
Sources checked on 27 October 2026.
This article is general information, not personal medical or dental advice. Whether a treatment or medicine suits you depends on your own health and your baby's, so please speak to your dentist, doctor or prescriber.
Where To Read Next
Want more on this topic? This page goes further, and it lists questions to bring to your visit.
Preparing for your visit
