Dental Care During Pregnancy: Gums, Sickness, And The Enamel Trap

If you thought that the safest part of your body during pregnancy is your mouth, then you couldn’t be further from the truth. The likelihood of gum diseases increases during pregnancy.

The most consequential misconception about dental care in pregnancy is that it should be avoided. It shouldn’t, and postponing treatment is the thing that causes problems.

Dental treatment is safe during pregnancy. Cleanings, fillings, extractions if needed, local anaesthetic and X-rays with proper shielding are all appropriate. Tell the dentist you’re pregnant so they can plan accordingly.

Don’t delay treatment for an infected or painful tooth. An untreated dental infection is a greater risk to a pregnancy than the treatment for it. Whitening, cosmetic procedures and other purely elective work can wait.

The second trimester is usually the most comfortable time for anything substantial: the nausea has settled and lying back isn’t yet uncomfortable.

Gum disease and pregnancy outcomes

Periodontal disease has been associated with preterm birth and low birthweight in a number of studies. The picture isn’t fully settled. Trials of treating gum disease during pregnancy haven’t consistently shown that it reduces those outcomes, which suggests the relationship is more complicated than a simple cause.

What isn’t in doubt: gum disease is bad for you regardless, it’s more likely during pregnancy, and it’s treatable. That’s enough reason to deal with it without needing to overstate the obstetric case.

Pregnancy gingivitis

Hormonal changes make gums more reactive to plaque. Most pregnant women notice some of this.

Swollen, red, tender gums that bleed when brushing. Common from around the second month, often peaking in the second trimester.
Keep brushing, gently. The instinct is to avoid the bleeding area, which lets plaque build and makes it worse. A soft brush and continued cleaning is the treatment.
Floss or use interdental brushes. Bleeding usually improves within a fortnight of consistent cleaning.
A lump on the gum, sometimes called a pregnancy epulis, is usually benign and typically resolves after delivery. Get it looked at instead of assuming, but it isn’t normally sinister.

Brushing after morning sickness

Don’t brush your teeth immediately after vomiting.

Stomach acid temporarily softens enamel, and brushing at that point scrubs it away. With frequent morning sickness this causes real, permanent erosion.

Instead: rinse with plain water, or with a teaspoon of bicarbonate of soda dissolved in water to neutralise the acid. Wait about 30 minutes, then brush.

Everyday care

Twice daily with fluoride toothpaste, and spit, don’t rinse: rinsing washes away the fluoride you’ve just applied.
Watch the snacking. Frequent small snacks, very common in pregnancy, keep the mouth acidic for longer than the same food eaten at once. It’s the frequency that damages teeth, not the quantity.
Water, not juice between meals.
If a strong-flavoured toothpaste triggers nausea, switch to a mild or children’s fluoride paste instead of skipping brushing.
If brushing makes you gag, use a smaller-headed brush and brush at a different time of day.
Have a check-up before or early in the pregnancy, so anything needed is done in good time.
MediSave and CHAS subsidies can apply to some dental treatment. Ask about it at the clinic.

A myth to drop

“You lose a tooth for every child.” You don’t lose calcium from your teeth during pregnancy. The enamel isn’t a calcium reserve the body draws on. Where women do lose teeth around pregnancy it’s because of untreated gum disease, erosion from vomiting, and postponed dental care. All of those are preventable, and that’s the version of the saying that helps.

Frequently asked questions

Is it safe to go to the dentist while pregnant?

Yes. Cleanings, fillings, extractions where needed, local anaesthetic and X-rays with proper shielding are all appropriate. Tell your dentist you’re pregnant. The second trimester is usually most comfortable for anything substantial. Don’t postpone treatment for an infected or painful tooth. Untreated infection is a greater risk than the treatment.

Why do my gums bleed during pregnancy?

Hormonal changes make gums more reactive to plaque, and most pregnant women notice some swelling and bleeding, often peaking in the second trimester. Keep brushing gently instead of avoiding the area. Avoiding it lets plaque build and makes it worse, and bleeding usually improves within a fortnight of consistent cleaning.

Should I brush my teeth after morning sickness?

Not straight away. Stomach acid softens enamel temporarily and brushing then scrubs it off, causing permanent erosion with frequent vomiting. Rinse with plain water or with a teaspoon of bicarbonate of soda in water, wait about 30 minutes, then brush.

Does gum disease cause premature birth?

It has been associated with preterm birth and low birthweight, but treatment trials haven’t consistently shown that treating it prevents those outcomes, so the relationship is more complicated than a direct cause. Treating gum disease makes sense regardless, since it’s more likely in pregnancy and is treatable.

Is it true you lose a tooth for every child?

No. Teeth aren’t a calcium reserve the body draws on during pregnancy. Tooth loss around pregnancy comes from untreated gum disease, acid erosion from vomiting and postponed dental care, and all of those are preventable.

What if toothpaste makes me feel sick?

Switch to a mild or children’s fluoride toothpaste and brush at a different time of day, with a smaller-headed brush. Skipping brushing is the worse option.

What to remember

Go to the dentist. Treatment is safe, and delaying an infected tooth is the real risk.

Bleeding gums mean brush more gently, not less. The bleeding settles within a fortnight of consistent cleaning.

And after vomiting: rinse, wait thirty minutes, then brush. Brushing immediately is how enamel gets permanently lost.