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Related Experiment Videos

Matrix-mineral relationships--a morphologist's viewpoint.

M U Nylen

    Journal of Dental Research
    |March 1, 1979
    PubMed
    Summary

    This review examines enamel matrix ultrastructure and crystal interactions. Findings suggest some matrix structures form after crystals, not before, impacting crystal nucleation and orientation.

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    Area of Science:

    • Biomineralization
    • Dental Enamel Ultrastructure
    • Crystallography

    Background:

    • The enamel matrix's role in crystal formation is debated.
    • Two key matrix morphologies are identified: stippled material and fibrillar/lamellar structures.

    Purpose of the Study:

    • To review existing literature on enamel matrix ultrastructure.
    • To critically evaluate the proposed roles of matrix components in crystal nucleation and orientation.

    Main Methods:

    • Literature review of ultrastructural studies on enamel matrix.
    • Analysis of morphological evidence regarding matrix-crystal relationships.

    Main Results:

    • The 'stippled material' may be an early cellular product.
    • Evidence suggests fibrillar/lamellar structures form secondary to crystals, representing adsorbed organic material.
    • These secondary structures may influence crystal orientation.

    Conclusions:

    • The traditional view of the organic matrix guiding crystal formation requires re-evaluation.
    • Further research is needed on the specific interactions between organic matrix constituents and apatite crystals.
    • Understanding these interactions is crucial for comprehending enamel biomineralization.

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