The prenatal calcification of the first primary molar.
D005260:Female; D005333:Fetus; D006801:Humans; D008297:Male; D008963:Molar; D009805:Odontogenesis; D013194:Staining and Labeling; D014074:Tooth Calcification; D014083:Tooth Germ / Q000032:analysis; D014094:Tooth, Deciduous