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A transmission electron microscopy study of mineralization in age-induced transparent dentin

Paper ID Volume ID Publish Year Pages File Format Full-Text
11788 758 2005 11 PDF Available
Title
A transmission electron microscopy study of mineralization in age-induced transparent dentin
Abstract

It is known that fractures are more likely to occur in altered teeth, particularly following restoration or endodontic repair; consequently, it is important to understand the structure of altered forms of dentin, the most abundant tissue in the human tooth, in order to better define the increased propensity for such fractures. Transparent (or sclerotic) dentin, wherein the dentinal tubules become occluded with mineral as a natural progressive consequence of aging, is one such altered form. In the present study, high-resolution transmission electron microscopy is used to investigate the effect of aging on the mineral phase of dentin. Such studies revealed that the intertubular mineral crystallites were smaller in transparent dentin, and that the intratubular mineral (larger crystals deposited within the tubules) was chemically similar to the surrounding intertubular mineral. Exit-wave reconstructed lattice-plane images suggested that the intratubular mineral had nanometer-size grains. These observations support a “dissolution and reprecipitation” mechanism for the formation of transparent dentin.

Keywords
Dentin; Transmission electron microscopy; Mineralization; Sclerotic; Transparent; Aging
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A transmission electron microscopy study of mineralization in age-induced transparent dentin
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 36, December 2005, Pages 7650–7660
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us