A Parent’s Guide to “Shark Teeth” in Children

November 9, 2025

Photo of shark teeth in child’s mouth

When you hear the term “shark teeth,” you probably think of large predators that roam the oceans. But did you know that kids can also have shark teeth? That is the colloquial term used to describe the appearance of an extra row of teeth in a child’s mouth. If you notice this in your little one, do you need to be concerned? Should you bring your child to see their pediatric dentist? This blog post discusses all the basic facts that parents should know about shark teeth in children.

What Causes Shark Teeth?

Shark teeth occur when your child’s permanent teeth begin to erupt before the baby teeth have fallen out. This typically happens in the lower front teeth, but it can also occur in the upper front teeth. The result is a double row of teeth that may look alarming at first glance.

The primary reason for this phenomenon is that the roots of the baby teeth do not always dissolve as quickly as the permanent teeth emerge, causing both sets to be visible at the same time. This is a common developmental stage and is most often seen in children between the ages of 6 and 8.

You might also notice an apparent extra row of teeth if your child’s dental arches are too small or narrow. This can cause the teeth to be crowded. Some kids even develop more teeth than normal, which can also cause crowding.

Is There Any Need to Be Worried?

As a parent, it is natural to worry when you see something unusual in your child’s mouth. However, shark teeth are usually harmless and resolve on their own. In most cases, the baby teeth will eventually become loose and fall out, allowing the permanent teeth to move into the correct position.

However, if the baby teeth do not loosen within a few weeks or if your child is experiencing discomfort, it is a good idea to consult your pediatric dentist. The dentist can assess whether intervention is necessary. For example, they might need to remove the stubborn baby teeth. Early dental visits can provide peace of mind and ensure your child’s adult teeth have enough space to grow properly.

If your child has extra teeth, narrow dental arches, or other reasons for the appearance of extra or crowded teeth, your pediatric dentist can guide you on your next steps. Your child might need extractions, or they may need to visit an orthodontist for a consultation.

Shark teeth in children are usually nothing to be concerned about! Keep an eye on your child’s smile and call their dentist if you start to get worried.

Meet the Practice

Dr. Bassel Dulli is a board-certified pediatric dentist with decades of experience in his profession. He enjoys working with kids and is always happy to speak to concerned parents. If you have questions about your child’s oral health, our team would be pleased to speak with you! Contact our office in Naperville at 630-717-5437.