neonatal line


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neonatal line

[¦nē·ə′nād·əl ′līn]
(anatomy)
A prominent incremental line formed in the neonatal period in the enamel and dentin of a deciduous tooth or of a first permanent molar.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Macchiarelli and Bondioli found a neonatal line in the teeth of 24 individuals, meaning that the remaining 26 individuals died prenatally or within two weeks of birth, the researchers reported.
1), we obtained the following measurements with an ocular micrometer in a compound microscope: 1) distance (in [micro]m) from the neonatal line up to the end of the first GLG in the dentine; 2) distance from the neonatal line to the first accessory layer in the dentine; and 3) distance from the neonatal line to the second accessory layer in the dentine, if present.
The venous lines we had to modify slightly since we were finding the lumen of the neonatal lines was so small that it was causing difficulties with increased resistance and, therefore, we were unable to obtain ideal blood flows.
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