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Classification and external resources
ICD-10 K00.2
ICD-9 520.2
DiseasesDB 35076

Microdontia is a condition in which teeth appear smaller than normal. In the generalized form, all teeth are involved. In the localized form, only a few teeth are involved. The most common teeth affected are the upper lateral incisors and third molars. The affected teeth may be of normal or abnormal morphology.

There are 3 types of microdontia:

  • True generalized microdontia: All the teeth are normally shaped, but smaller. It is mainly reported in pituitary dwarfism.
  • Relative generalized microdontia: It is an illusion of true microdontia.
  • Localized microdontia: Commonly affects the upper teeth, mainly the lateral incisors and the wisdom teeth. The former are peg shaped.



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