Abstract
AGENESIS (congenital absence) of the third molar tooth is a familiar polymorphism in man, with a population frequency of at least 9 per cent in Europeans1. Hitherto, congenital absence of this tooth has been considered as an independent trait, or at most associated with reduction in size when agenesis is incomplete. However, there is evidence connecting the presence or absence of the third molar tooth with the timing of formation of the premolar and molar teeth as well.
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References
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GARN, S., LEWIS, A. & BONNÉ, B. Third Molar Polymorphism and the Timing of Tooth Formation. Nature 192, 989 (1961). https://doi.org/10.1038/192989a0
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DOI: https://doi.org/10.1038/192989a0
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