Özet:

Although congenital tooth agenesis is a common dental finding, oligodontia is a rare developmental dental anomaly associated with tooth number. Oligodontia, defined as the congenital absence of six or more teeth. Excluding the third molars, is commonly associated with syndromes and systemic abnormalities. Genetic factors may play an important role in oligodontia which may occur as part of a syndrome or as an isolated finding. This report presents two cases of oligodontia, 19 and 15 years, made certain after genetic consultation not to be associated with any syndromes or systemic abnormalities. In the first case only 16 teeth were present in the mouth and most of their shapes were microdont. In the intra oral examination of the second case only 5 permanent teeth were deteced and the panoramic radiograph showed 23 missing permanent teeth except third molars

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