Some people are born with extra teeth — and not just one or two. In rare cases, individuals have developed dozens, even hundreds, of additional teeth. This unusual condition, called hyperdontia, sounds like science fiction, but it’s very real. In fact, extreme cases have even made medical history and headlines.
While most people grow exactly 32 permanent teeth, some develop more — often without even knowing it until symptoms appear or X-rays reveal the extras.
So, what causes people to grow more teeth than normal, and when should you be concerned?
What Is Hyperdontia?
Hyperdontia refers to the development of supernumerary teeth — teeth that appear in addition to the normal 20 primary (baby) teeth and 32 permanent (adult) teeth. These can emerge anywhere in the mouth, often crowding or misaligning neighboring teeth.
There are several types of extra teeth:
- Mesiodens – appear between the two front upper teeth
- Paramolars – near the molars
- Distomolars – behind the third molars (wisdom teeth)
- Supplemental teeth – resemble normal ones in shape and size
What Causes Extra Teeth to Develop?
In most cases, the exact cause of hyperdontia is unknown. However, researchers believe it may be linked to:
- Genetic factors or familial traits
- Developmental syndromes like:
- Cleidocranial dysplasia
- Gardner’s syndrome
These conditions may result in multiple extra teeth forming throughout the jaw.
Where Do Extra Teeth Appear?
The most common locations for supernumerary teeth are:
- Behind the upper front teeth
- Along the molar line
- Occasionally, in the roof of the mouth (palate) or even the nasal cavity
Yes, you read that correctly — in rare cases, teeth have erupted in the nose or other unusual areas of the face. That’s one of the reasons hyperdontia often requires imaging like X-rays or CT scans to detect fully.
Should Extra Teeth Be Removed?
Not always. Some individuals with hyperdontia don’t experience any discomfort or alignment issues and may not need treatment. However, dentists might recommend removal if:
- There is overcrowding
- Normal tooth eruption is blocked
- The extra teeth are malformed or impacted
- There is an aesthetic concern
Your dental professional can determine the best approach with a full exam and imaging.
Historical Curiosities & Extreme Cases
Hyperdontia isn’t just a dental oddity — it’s also a record-breaker.
In 2014, a boy in India had 232 teeth removed during a single surgery. His condition, classified as complex odontoma (a type of tumor-like growth of tooth material), was a rare manifestation of extreme hyperdontia.
➡️ Read the full story
Ancient skulls have also revealed signs of extra teeth, sometimes suggesting ritualistic or evolutionary causes. These cases continue to intrigue anthropologists and dentists alike.
FAQs About Extra Teeth
Are extra teeth dangerous?
Not necessarily. But they can interfere with normal tooth alignment or cause crowding if left untreated.
Can extra teeth grow back after removal?
No — once a supernumerary tooth is removed, it won’t regrow.
Can you have extra teeth without knowing it?
Yes. In some cases, extra teeth remain impacted (buried under the gums) and are only discovered during routine X-rays.
How common is hyperdontia?
Estimates vary, but hyperdontia affects about 1–4% of the population. It is more frequently diagnosed in males and often detected in children during dental development.
Final Thoughts
Hyperdontia may sound like a myth, but it’s a real — and sometimes extreme — condition that showcases the wild side of dental anatomy. Whether they’re harmless or problematic, extra teeth remind us just how unique each smile can be.
If you or your child has extra teeth, don’t panic — but don’t ignore it either. A dental evaluation can provide clarity and peace of mind. With early diagnosis and a personalized treatment plan, hyperdontia can usually be managed effectively and comfortably.
