Going to the Dentist While Pregnant: What Is Safe and When to Go

By Dr. Cléo Salustiano · CRO-SP 170844

08 Nov 2026 · 8 min read

Updated 08 Nov 2026

Yes, you can and should see a dentist while pregnant. Dental care is part of good prenatal care: check-ups, cleanings and hygiene advice are appropriate at any stage of pregnancy. For elective treatment, meaning anything that can be planned calmly, the second trimester is usually the most comfortable time. Pain, swelling or infection, however, should not wait until the baby is born: urgent problems can be treated at any stage after an assessment. In every case, the first step is to tell your dentist you are pregnant and keep your obstetrician informed.

Many pregnant women put off the dentist because they worry that anesthesia, X-rays or a procedure could harm the baby. That concern is understandable, but in most situations leaving an oral problem untreated is more of a concern than treating it with the right precautions. A cavity that keeps growing or an infection that spreads may later require bigger procedures and more medication.

Dr. Cléo Salustiano (CRO-SP 170844), a dentist in Mooca, explains what is usually done in each trimester, how anesthesia, X-rays and root canals are handled, which changes in the mouth are common during pregnancy and which signs call for prompt care.

This article comes from Dr. Cléo Salustiano's dental office in Mooca, São Paulo (care in English, Portuguese and Spanish). See the general dentistry page to learn how the treatment is done here and book your assessment.

What changes in the mouth during pregnancy and what can be done in each trimester

Hormonal changes in pregnancy make the gums more reactive to plaque. That is why the gums often become redder, puffier and bleed more easily when brushing or flossing, a condition known as pregnancy gingivitis. Some women also develop a small reddish lump on the gum, usually linked to this inflammation, which should be checked by the dentist. Frequent nausea and vomiting expose the teeth to stomach acid, and eating more often, especially sweets, raises the risk of cavities. The idea that "every pregnancy costs a tooth" or that the baby "takes calcium from your teeth" is a myth: what matters is the mix of harder hygiene, more frequent snacking and more reactive gums.

First trimester: this is when the baby's organs form and, for many women, the time of morning sickness. Check-ups, assessments, cleanings and advice can be done normally. Longer elective procedures are usually planned for later unless they are needed now. If there is pain or infection, the dentist assesses and treats what is necessary, talking to your obstetrician when appropriate.

Second trimester: usually the most comfortable period and the one most often used for elective treatment, such as fillings, gum treatment and, when indicated, root canals or extractions that cannot wait until after delivery. Third trimester: check-ups and urgent care are still possible, but lying back for a long time becomes uncomfortable. Shorter visits and a slightly reclined chair, with you turned a little to your left side, help avoid feeling unwell or a drop in blood pressure from lying flat on your back.

Some treatments are usually postponed until after delivery because they are cosmetic or elective, such as whitening, veneers and large rehabilitations. That does not stop you from having an assessment and planning ahead. The article can you whiten your teeth while pregnant? covers whitening, and the article on dental cleaning during pregnancy explains cleanings, one of the most recommended types of care in this period.

Anesthesia, X-rays, root canals and medication: how the dentist handles them

Local anesthesia: it is considered safe during pregnancy when used by the dentist in an appropriate amount, and it keeps the pain and stress of a procedure from weighing more than the treatment itself. The dentist chooses the anesthetic and the amount taking your pregnancy and general health into account. That is why you should share how many weeks pregnant you are, any high blood pressure, gestational diabetes or allergies, and every medication and supplement you take.

X-rays: the dentist considers whether the exam is really needed at that moment. Routine X-rays with no complaint are usually postponed. When there is pain, a suspected infection or a root canal to be done, a dental X-ray may be requested with the protective measures required by regulations, because it helps treatment be carried out safely. Root canal treatment and extractions can also be done during pregnancy when indicated: an infected tooth is a source of inflammation that should not be ignored.

Medication: do not self-medicate. Pain relievers, anti-inflammatories and antibiotics should only be used as advised by your dentist and obstetrician, who take the stage of pregnancy into account. At home, it helps to brush with a soft brush and fluoride toothpaste, floss every day even if the gums bleed a little at first, and, after vomiting, just rinse with water and wait a while before brushing so you do not scrub acid into the enamel. If your gums bleed a lot, see bleeding gums when brushing.

Seek prompt care for strong pain, swelling of the face or gum, pus, a persistent bad taste or a broken tooth. Spreading swelling, fever, or difficulty swallowing or breathing require going to the emergency room immediately. This content is for information only and does not replace an exam: consult a dentist and keep your obstetrician informed. In Mooca, Dr. Cléo Salustiano sees pregnant patients every day, from 8 a.m. to 10 p.m., including Sundays and holidays, for general dentistry and dental emergencies in Mooca.

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