Most adults have 32 teeth. But some people develop extra ones — and most never even know it.
These extra teeth are called supernumerary teeth. They form alongside your regular teeth, usually above the normal number. Dentists spot them most often during a routine X-ray.
Why Do They Happen?
The exact cause isn't always clear. Genetics often play a role. If a parent had extra teeth, children may too. Sometimes supernumerary teeth are linked to certain conditions, but this is rare.
Dentists aren't sure why the tooth bud splits or produces an extra tooth. It seems to happen during the early stages of tooth development in childhood.
Where Do They Appear?
Supernumerary teeth most commonly show up in the upper jaw, right behind the front teeth. Dentists call this area the premaxilla. They can also grow in other spots — near the molars or even in the roof of the mouth.
Some people have one extra tooth. Others can have two or more. Most people with supernumerary teeth only ever have one.
Do They Cause Problems?
Many supernumerary teeth cause no issues at all. They stay hidden under the gum or sit quietly in the mouth without affecting anything.
But sometimes they do cause problems. They can push neighbouring teeth out of position. They might block an adult tooth from erupting properly. In rare cases, they can cause crowding, bite issues, or even cyst formation around the root.
How Does Your Dentist Spot One?
Your dentist usually finds a supernumerary tooth on an X-ray. A standard dental X-ray will show if there's an extra tooth hiding above or below your regular ones.
If you have children, dentists may recommend an OPG X-ray to check for extra teeth during routine check-ups. Catching them early helps manage any potential issues.
What Happens Next?
Not every supernumerary tooth needs treatment. If it's not causing problems, your dentist may simply monitor it with regular check-ups and occasional X-rays.
If it is causing problems — like blocking an adult tooth or causing crowding — your dentist may recommend removal. This is a minor surgical procedure, and most people recover quickly.
Book a Check-Up
If you're curious about your teeth or want to rule out any hidden issues, book a check-up with us. We can take an X-ray and give you a clear picture of your oral health.
Call 01323 723757 or book at www.meadsdental.com
Meads Village Dental Practice