title: [Mesiodens and heredity].
abstract: The authors describe the case of mesiodens in two non-identical twins and in their grandfather. They recall that, although no investigation confirmed the hereditary nature of the mesiodens, it is quite undeniable in view of the frequency of familial cases. They think there is a recessive gene on an autosome and a gene on the inhibiting chromosome X. They discount the theory of mutation.
mesh_terms: D000293:Adolescent; D001641:Bicuspid / Q000002:abnormalities; D003481:Cuspid / Q000002:abnormalities; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007180:Incisor / Q000002:abnormalities; D008297:Male; D011247:Pregnancy; D014096:Tooth, Supernumerary / Q000235:genetics*; D014429:Twins, Dizygotic
vernacular_title: Mésiodens et hérédité.