Structure of initial crystals formed during human amelogenesis

F. J.G. Cuisinier, J. C. Voegel, J. Yacaman, R. M. Frank

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

X-ray diffraction analysis revealed only the existence of carbonated hydroxyapatite (c.HA) during amelogenesis, whereas conventional transmission electron microscopy investigations showed that developing enamel crystals have a ribbon-like habit. The described compositional changes could be an indication for the presence of minerals different from c.HA. However, the absence of identification of such a mineral shows the need of studies by high resolution electron microscopy (HREM) of initial formed human enamel crystals. We demonstrate the existence of two crystal families involved in the early stages of biomineralization: (a) nanometer-size particles which appeared as a precursor phase; (b) ribbon-like crystals, with a structure closely related to c.HA, which by a progressive thickening process tend to attain the mature enamel crystal habit.

Original languageEnglish (US)
Pages (from-to)314-318
Number of pages5
JournalJournal of Crystal Growth
Volume116
Issue number3-4
DOIs
StatePublished - Feb 1 1992
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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