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Oral health during pregnancy requires special attention because the hormonal changes during gestation alter the response of oral tissues and increase the risk of gingivitis, tooth decay, and other pathologies that, if left untreated, can affect both the mother and the baby.
The popular saying that “every pregnancy costs a tooth” made sense when dental check-ups during gestation did not exist. Today, with proper monitoring and correct hygiene, it is perfectly possible to reach childbirth with a completely healthy mouth. The problem is that many pregnant women avoid the dentist for fear that treatments may be harmful to the baby, when in reality it is quite the opposite: failing to treat oral problems during pregnancy is what can lead to complications.
At Asensio Dental Clinic, Dr. Lucía Asensio Romero (Registration No. 46002287) treats pregnant and breastfeeding patients with protocols adapted to each trimester, guaranteeing safe treatments for both mother and baby. The first visit is completely free of charge.
Most Common Oral Problems During Pregnancy
Hormonal changes during pregnancy —increased estrogen and progesterone— lead to greater blood flow in all body tissues, including oral ones. This hypervascularization makes the gums more sensitive, more reactive to bacterial plaque, and more prone to inflammation. The result is pregnancy gingivitis, which affects approximately 70% of pregnant women and manifests as red, swollen gums that bleed easily during brushing or chewing. The third trimester is the period of highest risk.
The accelerated progression of cavities is another frequent issue. Increased metabolism, changes in oral bacterial flora, higher saliva acidity due to vomiting and gastroesophageal reflux, and a greater craving for sugary foods create an environment that favors enamel demineralization. A cavity that would normally take months to progress can advance very quickly during pregnancy.
Canker sores (aphthous ulcers) are also more common during gestation. If you suffer from them frequently, consult our guide on mouth sores: causes, treatment, and foods that help. Halitosis due to vomiting or reflux and sialorrhea —excessively acidic saliva— are other common changes that can affect quality of life during the first trimester.
If gingivitis is not treated, it can progress to periodontal disease —an infection of the tissues that attach the bone to the tooth— with much more serious consequences. There is solid scientific evidence that uncontrolled periodontal disease during pregnancy significantly increases the risk of premature birth and low birth weight. The influence of this factor is compared in studies to that of tobacco or alcohol. For this reason, periodontal control during pregnancy is not optional: it is a public health measure.
Which Dental Treatments Are Safe During Pregnancy?
Most common dental treatments are safe during pregnancy when performed with the appropriate protocols. The second trimester —between weeks 14 and 28— is the most suitable period for non-urgent treatments, as the first trimester is the most sensitive for fetal development and the third can be uncomfortable due to the position in the dental chair.
| Treatment | Safety | Observations |
|---|---|---|
| Check-up and Cleaning | Safe throughout pregnancy | Recommended at the beginning and middle of gestation |
| Local Anesthesia | Safe with adapted protocol | Lidocaine with low-dose vasoconstrictor is safe |
| Fillings and Restorations | Safe in 2nd trimester | Mercury-free composite resin is preferred |
| Digital X-rays | Safe when necessary | Minimal dose with protective lead apron |
| Root Canal (Endodontics) | Safe and recommended if urgent | Never postpone an active dental infection |
| Extractions | Preferable in 2nd trimester | Emergencies are treated in any trimester |
This care is part of our oral medicine in Valencia specialty. If you are also a patient with medical conditions requiring special protocols, visit our page on special needs patients.
Frequently Asked Questions about Oral Health in Pregnancy
Can I go to the dentist while pregnant?
Yes, and it is highly recommended. Regular dental check-ups and treatments are safe during pregnancy. The second trimester is the most suitable time for non-urgent treatments. You should never postpone a dental emergency because you are pregnant: an untreated infection is far more dangerous for the baby than any dental treatment performed with the proper protocol.
Is dental anesthesia safe during pregnancy?
Yes. Local anesthetics used in dentistry, such as lidocaine with low-dose vasoconstrictors, are safe during pregnancy. We always adapt the protocol to the trimester and clinical situation of each patient, using the minimum effective dose.
Why do gums bleed during pregnancy?
The increase in estrogen and progesterone causes greater blood flow to the oral tissues, making the gums more sensitive and prone to bleeding. This condition is called pregnancy gingivitis and affects 70% of pregnant women. Good hygiene and regular check-ups control it effectively.
Can I have a dental X-ray while pregnant?
Yes, when it is clinically necessary. Digital dental X-rays emit a minimal dose of radiation, and a lead apron is always used to protect the abdomen. In most routine check-ups, we can do without them, but in an emergency or when diagnosis requires it, the benefit far outweighs the risk.