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In Vivo Vascular Permeability Detection in Mouse Submandibular Gland
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Primary enamel permeability: a SEM evaluation in vivo.

A Lucchese1, A Bertacci, S Chersoni

  • 1Department of Medical-Surgical Sciences of Communication and Behaviour, University of Ferrara, Ferrara, Italy. lcclsn@unife.it

European Journal of Paediatric Dentistry
|September 14, 2012
PubMed
Summary

Primary tooth enamel is significantly permeable, allowing outward fluid flow. This permeability remains consistent throughout life, potentially impacting caries susceptibility and dental bonding procedures.

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Area of Science:

  • Pediatric Dentistry
  • Dental Enamel Microstructure
  • Biomaterials Science

Background:

  • The permeability of primary tooth enamel is not fully understood.
  • Investigating fluid flow in enamel is crucial for understanding dental health and treatments.

Purpose of the Study:

  • To evaluate the in vivo occurrence of outward fluid flow on the surface of primary tooth enamel.
  • To compare enamel permeability between primary teeth and retained adult teeth.

Main Methods:

  • Sixty primary and 24 adult canine teeth were analyzed using scanning electron microscopy (SEM).
  • Enamel surfaces were prepared, impressions taken, and replicas examined for droplet presence, indicating fluid flow.
  • Fisher's exact test was used for statistical analysis.

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Main Results:

  • Primary enamel exhibited substantial permeability, with droplets observed across the entire surface.
  • No significant differences in droplet distribution were found between primary and adult teeth.
  • No evidence of post-eruptive enamel maturation affecting fluid distribution was observed.

Conclusions:

  • SEM analysis confirms significant enamel permeability in primary teeth, consistent with histological data.
  • Enamel permeability does not appear to change with age.
  • This permeability may influence caries susceptibility and the effectiveness of dental bonding procedures.