Differential termination times of enamel formation on human deciduous anterior-tooth surfaces revealed by tetracycline labelling.
The positional relationships between the cervical-enamel margin and the intersecting point of a fluorescent (tetracycline) line in dentine, with the outer dentine surface or the dentine-enamel junction, were investigated by ultraviolet microscopy of the human deciduous anterior teeth. The results suggest that enamel formation (1) ended earlier on the mesial than on the distal surface in 18 instances and, nearly simultaneously on both of these surfaces in four, (2) ended earlier on the distal than on the labial surface in all 28 specimens and (3) ended earlier on the labial than on the lingual surface in 14 instances and nearly simultaneously on both of these surfaces in eight instances.
D000566:Amelogenesis; D003481:Cuspid / Q000254:growth & development; D006801:Humans; D007180:Incisor / Q000254:growth & development; D008860:Microscopy, Ultraviolet; D013752:Tetracycline; D013997:Time Factors; D014094:Tooth, Deciduous / Q000254:growth & development*
D013752:Tetracycline