Question: How many people are born with extra teeth?
Answer: Extra teeth (referred to as supernumerary teeth), occur approximately 2% of the time in the adult set of teeth, and less than 1% in the child’s first set of teeth. Most of these extra teeth (about 90%) will occur in the upper arch of teeth (maxilla). Supernumerary teeth may also be referred to as polydontia or hyperdontia, with the most common type being the mesiodens (an extra tooth that tends to form between and just inside of the upper two front teeth. Most of the time, these extra teeth don’t even come through the gums, and they are discovered when taking an x-ray in that area. Other types of supernumerary teeth include the rare fourth molar (also referred to as paramolar or distomolar). Multiple supernumerary teeth are very rare in people that don’t have any syndrome or disease associated with it. It is more common to be missing certain teeth, than to develop extra teeth.