Born with a Bite: Understanding Natal Teeth

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Teething is a normal part of every baby’s development. Most parents expect to see the first tiny white tooth pop through the gums between 4 to 7 months of age. But in some rare cases, a baby may be born with teeth already present. These are known as natal teeth, and although they can be surprising, they are usually not a cause for concern.

In this article, we’ll explore what natal teeth are, why they happen, what they look like, and when treatment might be necessary.

What Are Natal Teeth?

Natal teeth are teeth that are present in a baby’s mouth at birth. These are different from neonatal teeth, which appear within the first 30 days of life. Natal teeth are rare, occurring in about 1 in every 2,000 to 3,500 births. In most cases, only one or two teeth are present at birth, usually in the lower front gum (the mandibular central incisors).

Natal teeth may look like regular primary teeth (also called baby teeth), but they are often underdeveloped. Many are small, loose, discolored (yellow or brown), and may not have well-formed roots.

Are Natal Teeth Normal?

While it may be shocking to see teeth in a newborn, natal teeth are not usually dangerous. Most do not cause problems and do not require treatment. However, in some cases, these early teeth can lead to feeding difficulties, injuries, or even become a choking hazard if they are too loose.

Common Characteristics of Natal Teeth

Natal teeth can vary in appearance and development. Some are fully erupted with a crown and some root structure, while others are just breaking through the gum (the gingiva). Dental professionals classify them into four main types:

Fully developed crowns loosely attached with partial root development.

Loose crowns with no root structure.

Small teeth just emerging from the gingival margin.

Swollen gums showing signs of a tooth about to erupt.

In most cases, the natal tooth is part of the baby’s normal set of 20 primary teeth. But in fewer than 10% of cases, the tooth is a supernumerary tooth — an extra tooth not part of the usual set. These can cause crowding or malocclusion (misalignment of teeth) later on.

What Causes Natal Teeth?

The exact cause of natal teeth is still a mystery, but several factors may play a role.

Genetics

About 15% of babies with natal teeth have a close family member — like a parent or sibling — who was also born with teeth. This suggests a hereditary link.

Medical Conditions

Natal teeth are more common in babies with certain genetic disorders and congenital syndromes, including:

Sotos syndrome

Ellis-van Creveld syndrome (chondroectodermal dysplasia)

Hallermann-Streiff syndrome

Pierre Robin sequence

Pachyonychia congenita

Cleft lip or cleft palate

Some of these conditions affect how the tooth germ (early tooth tissue) forms or where it’s positioned, causing earlier eruption.

Other Risk Factors

Malnutrition during pregnancy

Endocrine disorders, such as an overactive thyroid gland

Environmental chemical exposure, such as banned substances like PCBs or dibenzofurans

Some research suggests females may be slightly more likely than males to be born with natal teeth

Complications to Watch For

While most natal teeth don’t cause problems, there are some potential complications:

Feeding issues: The tooth may hurt the mother during breastfeeding or cause pain for the baby when latching.

Injury to the tongue: Sharp or mobile natal teeth can cause ulcers on the underside of the tongue. This is known as Riga-Fede disease.

Choking hazard: If a tooth is very loose and has no root, it can fall out and be accidentally swallowed or aspirated (inhaled into the airway).

Dental crowding: If the tooth is a supernumerary tooth, it may lead to misalignment or block the eruption of permanent teeth.

Diagnosis of Natal Teeth

Your pediatrician or pediatric dentist can usually identify natal teeth during a routine oral exam. In some cases, an x-ray may be needed to check for root development or to determine whether the tooth is part of the primary dentition or a supernumerary tooth.

Treatment Options

Not all natal teeth need to be removed. The decision depends on the tooth’s mobility, structure, and whether it causes any problems.

When Treatment Is Needed:

The tooth is very loose and poses a choking risk

It causes pain or injury to the baby’s tongue

It interferes with breastfeeding

It is a supernumerary tooth that may cause future orthodontic issues

If removal is necessary, it is usually a simple procedure performed by a pediatric dentist. In some cases, the dentist may also remove the soft tissue lining of the socket to prevent further root development.

Alternative Care:

If the tooth is stable but sharp, the dentist may smooth the edges or cover them with composite resin (a tooth-colored filling material) to prevent injury.

Caring for Natal Teeth

If your baby keeps their natal teeth, you’ll want to start oral hygiene early. Clean the teeth gently with a damp cloth or soft infant toothbrush and visit a pediatric dentist regularly to monitor for:

Dental caries (cavities), especially in teeth with weak enamel

Tooth decay or infection

Developmental changes in the gums or jaws

Final Thoughts

Natal teeth are rare but usually not harmful. If your baby is born with teeth, stay calm and speak with your pediatrician or dentist. Most cases are easy to manage with monitoring or minor dental care. With the right guidance, your baby’s smile will develop just fine — whether it starts at birth or a few months later.