If you’ve noticed your child developing a second row of teeth behind their baby teeth, you’re not alone, and it’s not as scary as it looks. This common and usually harmless dental occurrence is known as “shark teeth,” and it’s a normal part of childhood for many kids. The term “shark teeth” comes from the way a child’s adult teeth sometimes emerge before the baby teeth have fallen out, creating a double row of teeth – much like a shark’s smile. It might look alarming, but it’s actually a sign that your child’s permanent teeth are coming in. Let’s take a closer look at why this happens and what you should do about it.
Why Does the Shark Teeth Phenomenon Happen?
Typically, when adult teeth are ready to emerge, they push directly against the roots of the baby teeth, causing the roots to dissolve. This leads to the baby teeth loosening and eventually falling out, making room for the permanent teeth to take their place.
However, in some cases, the adult teeth don’t grow in directly underneath the baby teeth. Instead, they come in behind them. Because the pressure on the baby tooth’s root is less direct, the baby tooth may not loosen or fall out as expected, resulting in two rows of teeth.
Shark teeth most commonly occur in the lower front teeth (incisors), typically around ages 5 to 7, which is when those teeth usually begin to transition. However, it can also happen in the upper front teeth or molars.
Should You Be Concerned?
In most cases, shark teeth resolve on their own. The baby teeth will eventually fall out, especially if they start to loosen once the permanent teeth push further in. Encouraging your child to wiggle the loose baby teeth gently can help speed up the process.
However, if the baby tooth remains firm and shows no signs of loosening after a few weeks – or if the adult tooth has fully erupted behind it – it might be time to see a dentist. Your child’s dentist may recommend extracting the baby tooth to prevent crowding, alignment issues, or discomfort.
It’s also important to monitor how the adult teeth are aligning. Sometimes, if the baby teeth don’t fall out in time, the permanent teeth may come in at an awkward angle. Early dental visits can help prevent future orthodontic complications.
When to See a Dentist
You should schedule a dental appointment if:
- the baby tooth isn’t loose or wiggly, even after several weeks.t
- the adult tooth has fully erupted behind the baby tooth.
- your child is experiencing pain, swelling, or trouble chewing.
- you’re concerned about how the new teeth are lining up.
A dentist will assess whether intervention is needed or if you can wait it out.
Shark teeth might look a little wild, but they’re usually a harmless part of growing up. With proper monitoring and occasional dental support, your child’s smile will soon be back to normal – just a little more grown-up.
About the Author
Dr. Lily Hoang is a board-certified pediatric dentist and a graduate of Western University of Health Sciences. She also completed her Advanced Education in General Dentistry certification at the Lutheran Medical Center in Brooklyn and her pediatric certification at the University of Nevada. Dr. Lily and our team of caring, dedicated professionals can see to whatever dental needs your child has, including shark teeth! Call us today to schedule an appointment at (469) 925-0861 or visit our website.