Macrodontia (tooth)

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Macrodontia (tooth)
Classification and external resources
ICD-10 K00.2
ICD-9 520.2

Macrodontia is a condition in which any tooth or teeth appear larger than normal for that particular type of tooth. True macrodontia that involves the entire dentition is rare. It is more common that there is an enlargement of a single tooth due to a disturbance of morphodifferentiation. It should not be confused with either taurodontism (bull teeth), fusion (double tooth) or the jaws being relatively small, giving the appearance of macrodontia. It is commonly associated with gigantism.

Alternate terminology[edit]

Megadontia, megalodontia and giantism it is an opposite side of microdontia classified as true generalised macrodontia relative generalised macrodontia macrodontia of single teeth.


Unknown for single tooth, but generalized macrodontia is usually attributed to a hormonal imbalance, pituirary giantism. Can be associated with facial hemihyperplasia.


Unknown in the primary dentition.
1.1% in the permanent dentition.


Build up of antimere
Extraction and prosthetic replacement (implant, bridge, implant)


  • Kahn, Michael A. Basic Oral and Maxillofacial Pathology. Volume 1. 2001.
  • Cameron, A. & Widmer, R. Handbook of Padiatric Dentistry. Second Edition 2003.