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孪晶磷灰石双晶体中暗对比线的理论检测及其与人类牙本质和牙釉质晶体化学性质的可能关联。

Theoretical detection of a dark contrast line in twinned apatite bicrystals and its possible correlation with the chemical properties of human dentin and enamel crystals.

作者信息

Brès E F, Waddington W G, Voegel J C, Barry J C, Frank R M

出版信息

Biophys J. 1986 Dec;50(6):1185-93. doi: 10.1016/S0006-3495(86)83561-5.

DOI:10.1016/S0006-3495(86)83561-5
PMID:3801577
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1329791/
Abstract

Electron microscope images of twinned apatite bicrystals oriented along the [1120] crystallographic direction have been simulated for various experimental conditions, and the validity of the calculation has been checked. These images show a dark contrast line similar to the one observed experimentally in enamel and dentin crystals and therefore strongly suggest the presence of a twin plane parallel to the (1100) crystallographic planes, in these crystals. The presence of a twin boundary in teeth and bone crystals is of prime importance for the adsorption and the dissolution properties of the calcified tissues as a whole.

摘要

针对沿[1120]晶体学方向取向的孪晶磷灰石双晶体，已在各种实验条件下模拟了电子显微镜图像，并检验了计算的有效性。这些图像显示出一条暗对比线，类似于在牙釉质和牙本质晶体中实验观察到的那条线，因此有力地表明在这些晶体中存在一个平行于(1100)晶体平面的孪晶面。牙齿和骨晶体中孪晶界的存在对于整个钙化组织的吸附和溶解特性至关重要。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/80e26b04875b/biophysj00172-0164-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/96cb5f118f61/biophysj00172-0159-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/3ad16b7eb8b4/biophysj00172-0162-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/f938892c916b/biophysj00172-0162-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/0adc694f6660/biophysj00172-0163-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/421cbec3fe9d/biophysj00172-0163-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/80e26b04875b/biophysj00172-0164-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/96cb5f118f61/biophysj00172-0159-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/3ad16b7eb8b4/biophysj00172-0162-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/f938892c916b/biophysj00172-0162-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/0adc694f6660/biophysj00172-0163-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/421cbec3fe9d/biophysj00172-0163-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a946/1329791/80e26b04875b/biophysj00172-0164-a.jpg

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引用本文的文献

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本文引用的文献

1
The amelogenesis of human teeth as revealed by electron microscopy. II. The development of the enamel crystallites.通过电子显微镜观察揭示的人类牙齿釉质形成。II. 釉质微晶的发育
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Planar faults in dental hydroxy-apatite.牙科羟基磷灰石中的平面缺陷。
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