title: [Intra-uterine gestational age. The value of calcification of dental crowns (author's transl)].
abstract: Calcification in the first decidual molar tooth first appears at the 33-34th week of gestation; and the second at the 36-37th week. It is therefore a stable and precise index of gestational age. It can be estimated in over two-thirds of films of the intra-uterine contents chosen at random. The search for this sign can complement or take the place of looking for epiphyseal centres in the knee. It gives information about gestational age in pathological conditions where bony maturation is abnormal.
mesh_terms: D000366:Age Determination by Teeth; D005260:Female; D005317:Fetal Growth Retardation / Q000175:diagnosis; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D014074:Tooth Calcification
vernacular_title: Age gestationnel intra-utérin. Intèrêt de la calcification des couronnes dentaires.