What is difference between hyperdontia and supernumerary?
Isabella Harris
Updated on January 19, 2026
If a person has one or more teeth that are additional to these typical sets of teeth, the person is said to have hyperdontia, and the additional teeth are known as supernumerary teeth. Note that it is possible for a person to have a supernumerary tooth without having more than 20 baby teeth or 32 permanent teeth.
Is supernumerary teeth the same as hyperdontia?
Hyperdontia is a condition that causes too many teeth to grow in your mouth. These extra teeth are sometimes called supernumerary teeth. They can grow anywhere in the curved areas where teeth attach to your jaw. This area is known as the dental arches.What does supernumerary mean in dental?
Supernumerary teeth are defined as those in addition to the normal series of deciduous or permanent dentition. They may occur anywhere in the mouth. They may appear as a single tooth or multiple teeth, unilaterally or bilaterally, erupted or impacted and in mandible/maxilla or both the jaws.What is another term for hyperdontia?
Hyperdontia (Supernumerary Teeth) Supernumerary teeth in the premaxillary area.What is the meaning of hyperdontia?
You have two sets of teeth in your life. As a child, you have 20 primary or baby teeth. These teeth fall out, and 32 permanent, or adult, teeth replace them. But some people end up with more than 32 teeth. This is known as hyperdontia.23. Supernumerary Teeth or Extra Teeth or Hyperdontia in Upper & Lower Jaws by Prof John Mew
What causes supernumerary teeth?
The causes of supernumerary teeth are uncertain, though factors that may contribute to their appearance include genetics, overactivity of the dental lamina (cells that initiate tooth development), disease processes, and atavism (the reappearance of a trait no longer common because of evolution).How do you number supernumerary teeth?
Charting Supernumerary Teeth
- When charting permanent teeth, add 50 to the closest standard tooth number. For example, if a supernumerary tooth is adjacent to tooth 12, the tooth number entered would be 62.
- When charting primary teeth, add the letter “S” after the closest standard tooth number.