Extra Teeth Growing in Gums: Causes, Risks, and Treatment

Spotting additional teeth sprouting in your gums can be quite unexpected. Most people assume they’ll only ever have 20 baby teeth and 32 adult teeth. However, some individuals develop extra teeth, known as supernumerary teeth — that can emerge in unusual places in the mouth.

These additional teeth can form behind, in between, or even above your regular teeth, sometimes causing complications. While the condition isn’t extremely common, it’s important to understand why it happens, the possible risks, and how it can be treated. In this article, we’ll cover everything you need to know about extra teeth growing in the gums and why a visit to your dentist is always the smart move.

What Are Supernumerary Teeth?

Supernumerary teeth are teeth that appear in addition to the normal number we expect to have. They can show up in childhood or adulthood and might be:

• Visible and fully erupted
  
• Hidden under the gum line
  
• Singular or multiple
  
• Shaped normally or irregularly
  

These teeth may form in both the upper and lower jaws and in both baby and adult sets of teeth.

Common Types of Extra Teeth

Supernumerary teeth vary in appearance and location. Below are the most frequent types:

1. Mesiodens

These are the most common and are typically found between the upper front teeth. They’re often peg-shaped and may cause the front teeth to shift or become misaligned.

2. Distomolars (Fourth Molars)

These extra molars grow behind your wisdom teeth and usually don’t erupt. They are usually spotted during dental imaging.

3. Paramolars

These grow beside your molars and may appear similar to natural molar teeth.

4. Peridens

These occur near the premolars and may erupt normally or stay trapped beneath the gum.

What Causes Extra Teeth to Form?

While the exact reason why supernumerary teeth form is still not completely clear, a few likely causes and contributing factors have been identified:

1. Hereditary Factors

If a close relative has experienced the same condition, there’s a higher chance you may too. Genetics can play a major role.

2. Developmental Syndromes

Certain medical conditions such as Cleidocranial Dysplasia, Down Syndrome, or Gardner Syndrome, are often linked with the presence of multiple extra teeth.

3. Overactive Tooth Bud Formation

In the early stages of development, the tissues that form teeth (known as dental lamina) can become overactive and produce extra tooth buds, resulting in additional teeth.

4. Environmental Influences

Though less proven, some believe that trauma or external factors during early development may contribute to the issue.

Warning Signs and When to Consult a Dentist

In many cases, extra teeth don’t cause immediate symptoms and may be discovered during a routine dental check-up or X-ray. However, they can lead to a range of concerns, including:

• Crowding of existing teeth
  
• Misalignment of the bite
  
• Delays in adult teeth erupting
  
• Tenderness or swelling in the gums
  
• Jaw discomfort
  
• Cyst formation around impacted teeth
  

If you notice any of these signs — or see an unusual tooth coming through — it’s best to book an appointment with your dentist without delay. Early detection can help prevent long-term dental problems.

How Dentists Diagnose Extra Teeth

Dentists use a combination of methods to identify supernumerary teeth:

• Oral Examination: Looking at and feeling around the gums and teeth.
  
• Dental X-rays: These help pinpoint hidden teeth and assess their impact on nearby structures.
  
• 3D Scans (CBCT): For more complex cases, especially when surgery is being considered.
  

Why Ignoring Extra Teeth Can Be Risky

If left untreated, extra teeth can lead to more serious dental issues down the line. Some of the most common complications include:

1. Dental Crowding

Extra teeth may push other teeth out of alignment, making them harder to clean and more susceptible to decay or gum disease.

2. Bite and Jaw Problems

These teeth can interfere with how the top and bottom teeth come together, leading to jaw pain or chewing difficulties.

3. Impaction of Permanent Teeth

Supernumerary teeth can block other teeth from emerging properly, especially in children.

4. Formation of Cysts or Growths

Teeth trapped under the gum can sometimes be surrounded by cysts, which may lead to bone damage or infection if not treated.

5. Damage to Nearby Teeth

The pressure from an extra tooth may cause weakening or even resorption of adjacent tooth roots.

How Are Extra Teeth Treated?

Treatment depends on the number of extra teeth, their location, shape, and whether they are causing any issues.

1. Regular Monitoring

In cases where the extra tooth isn’t interfering with the rest of the mouth, your dentist might recommend keeping an eye on it through regular check-ups and imaging.

2. Surgical Removal

When the tooth is causing problems or is at risk of doing so, removal is often the best course of action. This minor surgical procedure is typically done under local anaesthetic and may require some recovery time.

3. Orthodontic Care

If extra teeth have caused crowding or moved your teeth out of alignment, braces or aligners may be needed to correct your bite and straighten your smile.

4. Retention (In Rare Cases)

On occasion, if the extra tooth is properly aligned and doesn’t pose a risk, it may be left in place and used functionally. This is not common and only done with careful consideration.

Extra Teeth in Kids vs Adults

Children are often affected by supernumerary teeth that disrupt the natural eruption of their adult teeth. Identifying these early — usually between ages 6 and 9 — makes it easier to avoid future problems.

In adults, extra teeth may go unnoticed for years. They’re often discovered when complications arise or during X-rays for unrelated reasons. Regardless of age, professional assessment is key.

Importance of Visiting Your Dentist Early

Whether you’ve noticed an unusual tooth or your child’s teeth aren’t coming through as expected, a visit to the dentist is strongly recommended. Dentists can assess the situation, provide advice, and suggest a treatment plan tailored to your needs.

Whether it’s for you or your child, make it a priority to consult a dentist if you notice extra teeth or unusual spacing. Your oral health is important — and early intervention is often the easiest and most affordable solution.

Frequently Asked Questions (FAQs)

Q: Are extra teeth dangerous?

Not always, but they can lead to serious dental issues if they disrupt the natural tooth alignment or become infected.

Q: Will all extra teeth need to be removed?

Not necessarily. Some may not need removal if they don’t cause any interference or damage.

Q: Can children have extra teeth?

Yes, and it’s quite common for these to be spotted during early dental check-ups.

Q: Does removal hurt?

No — it’s typically performed under local anaesthetic, and while there may be some discomfort after, it’s usually manageable with over-the-counter pain relief.

Q: Will the extra tooth come back after it’s removed?

Once removed, the same tooth will not regrow. However, if there are other developing extra teeth, they may appear later.