Which toothpaste should you choose during pregnancy? What you really need to know

Which toothpaste should you choose during pregnancy? What you really need to know

Published on August 26, 2026

During pregnancy, the body undergoes profound changes due to hormonal fluctuations. While skin, digestion, and sleep are often discussed, oral health is one of the most frequently neglected aspects.

From the very first weeks, hormones influence the balance of the oral microbiotaThis ecosystem, composed of billions of microorganisms that naturally protect teeth and gums, can be affected by a period that can promote an increase in certain bacteria, gum inflammation, or greater mouth sensitivity.

Choosing the right oral care products then becomes particularly important. Some ingredients are preferable, while others require more careful attention.

1. Why does pregnancy change the oral microbiota?

Pregnancy causes a significant increase in estrogen and progesterone. These hormones directly influence gum tissue as well as the environment in which oral bacteria live.

In many pregnant women, certain bacterial species proliferate more easily. Combined with a decrease in local defenses and changes in saliva, this development can disrupt the oral microbiota.

The consequences are frequent: more sensitive gums, bleeding when brushing, different breath, drier mouth or feeling of discomfort.

These changes are physiological, but they require special attention in order to maintain a healthy oral environment throughout pregnancy.

2. Which ingredients are best avoided during pregnancy?

During this period, the mouth is often more sensitive. It is therefore best to opt for products that respect the mucous membranes and the balance of the microbiota.

Formulas containing high concentrations of alcohol or certain particularly aggressive agents may accentuate the feeling of dryness or irritation in some women.

It is also recommended to favour skincare products with the simplest and most transparent composition possible, without unnecessary or controversial ingredients when alternatives exist.

Conversely, biomimetic ingredients, prebiotics or naturally derived active ingredients that help maintain the balance of the microbiota represent a particularly interesting approach during pregnancy.

If you have any doubts about a specific product, it is always advisable to talk to your dentist, doctor or midwife.

3. How to take care of your mouth during pregnancy?

A gentle and regular routine is the best ally for expectant mothers.

It is recommended to brush your teeth twice a day with a toothpaste that respects enamel and the microbiota, to clean the interdental spaces daily and to maintain good hydration in order to promote the protective role of saliva.

Nausea, sugar cravings, or acid reflux can also weaken the oral environment. After an episode of vomiting, it is best to rinse your mouth with water before brushing your teeth to allow time for the pH to rebalance.

Finally, monitoring by a dentist during pregnancy helps to prevent gum inflammation and to support the natural changes associated with this period.

In Summary

  • Pregnancy naturally alters the oral microbiota under the influence of hormones.
  • Certain bacteria become more abundant, which increases the risk of gingivitis and gum sensitivity.
  • Gentle care, respectful of the microbiota and enamel, should be preferred during this period.
  • Good oral hygiene and regular checkups with a dentist help to maintain oral health throughout pregnancy.

Christiane,

Dentist & Co-founder of The Smilist

FAQ

Why do gums bleed more often during pregnancy?

Hormones make gum tissue more susceptible to plaque, which promotes the development of an inflammation known as pregnancy gingivitis.

Does pregnancy alter the oral microbiota?

Yes. Hormonal variations can alter the balance of bacteria in the mouth and promote certain species responsible for gum inflammation.

Is it safe to go to the dentist during pregnancy?

Yes. Preventive consultations and necessary care are even recommended in order to preserve the oral health of the expectant mother.

Why do I have bad breath more often when I'm pregnant?

Hormonal changes, dry mouth, nausea, and changes in the microbiota can all contribute to less fresh breath.

How to naturally protect your mouth during pregnancy?

By adopting a gentle routine, staying well hydrated, cleaning interdental spaces daily and prioritizing care that respects the oral microbiota.

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