If a supernumerary tooth is located in the maxillary midline, what is it called?

• A. Mesiodens
• B. Hyperdontia
• C. Globodontia
• D. Multiphyodont

Answer: (A)

A supernumerary tooth located in the maxillary midline is referred to as a mesiodens. This term specifically denotes an extra tooth that typically develops between the two central incisors in the upper jaw. The presence of a mesiodens can lead to various complications, including potential eruption issues, displacement of adjacent teeth, and aesthetic concerns.

Hyperdontia is a broader term that encompasses any condition characterized by the presence of one or more supernumerary teeth, but it does not specifically indicate the location or type of the supernumerary tooth. Globodontia refers to a condition where teeth are characterized by a globular shape and is not relevant in this context. Multiphyodont pertains to the ability to continuously replace teeth throughout life, which is also not applicable here. Thus, the term mesiodens accurately describes the specific lesion when an extra tooth is present in the maxillary midline.