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Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants
Published on: March 29, 2018
A scanning electron microscopic study of the enamel of neonatal teeth
J R Jasmin1, S Clergeau-Guerithault
1Department of Pedodontics, UFR d'Odontologie, Nice University.
Abstract:
Neonatal teeth, two mandibulars incisors and one maxillary central incisor, from two separate patients were examined, by SEM. Besides typical enamel anomalies, the incisors exhibited partial or total absence of root formation. These findings suggest that the early eruption of natal and neonatal teeth is dependent on osteoblastic activity within the area of the tooth germ. The reported cases show that teeth may erupt without root formation and without periodontal ligament which correlate with the role of the dental follicle during tooth eruption.
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In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...

