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.