Journal ArticleDOI
Ultrastructural examination of dentin using focused ion-beam cross-sectioning and transmission electron microscopy.
Ravi K. Nalla,A.E. Porter,A.E. Porter,Chiara Daraio,Andrew M. Minor,Velimir Radmilovic,Eric A. Stach,Antoni P. Tomsia,Robert O. Ritchie +8 more
TLDR
Two particular problems involving dentin, a structural analog of bone that makes up the bulk of the human tooth, are examined and FIB-milling was able to generate high-quality specimens that could be used for subsequent TEM examination.About:
This article is published in Micron.The article was published on 2005-10-01. It has received 102 citations till now. The article focuses on the topics: Dentin & Mineralized tissues.read more
Citations
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Journal ArticleDOI
Biomechanical Perspective on the Remineralization of Dentin
TL;DR: A more appropriate endpoint to evaluate the effectiveness of remineralization in dentin should be associated with the recovery of the mechanical properties of the hydrated tissue, which is presumed to correlate well with its overall functionality.
Journal ArticleDOI
A model for the ultrastructure of bone based on electron microscopy of ion-milled sections.
TL;DR: Transmission electron microscopy of cryogenically ion milled sections of fully-mineralized cortical bone is used to study the spatial and topological relationship between mineral and collagen and observes that hydroxyapatite occurs largely as elongated plate-like structures which are external to and oriented parallel to the collagen fibrils.
Journal ArticleDOI
The dentin organic matrix - limitations of restorative dentistry hidden on the nanometer scale.
TL;DR: It is argued in favour of the structural limitations that these complexly organized and inherently hydrated organic structures may impose on the clinical prospects of current hydrophobic and hydrolyzable dental polymers that establish ultrafine contact with the tooth substrate.
Journal ArticleDOI
Imaging three-dimensional tissue architectures by focused ion beam scanning electron microscopy
Andrew J. Bushby,Kenneth M.Y. Png,Kenneth M.Y. Png,Robert D. Young,Christian Pinali,Carlo Knupp,Andrew J. Quantock +6 more
TL;DR: A scanning electron microscope equipped with a focused gallium ion beam, used to sequentially mill away the sample surface, and a backscattered electron (BSE) detector, generates a large series of images that can be combined into a 3D rendered image of stained and embedded biological tissue.
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In situ micropillar compression reveals superior strength and ductility but an absence of damage in lamellar bone.
Jakob Schwiedrzik,Rejin Raghavan,Rejin Raghavan,Alexander Bürki,Victor Lenader,Uwe Wolfram,Johann Michler,Philippe K. Zysset +7 more
TL;DR: These experiments illustrate a transition from a ductile mechanical behaviour of bone at the microscale to a quasi-brittle response driven by the growth of cracks along interfaces or in the vicinity of pores at the macroscale.
References
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Journal ArticleDOI
THE MATERIAL BONE: Structure-Mechanical Function Relations
S. Weiner,Hanoch Daniel Wagner +1 more
TL;DR: The structure-mechanical relations at each of the hierarchical levels of organization are reviewed, highlighting wherever possible both underlying strategies and gaps in the authors' knowledge.
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Mechanical properties and the hierarchical structure of bone
TL;DR: Further investigations of mechanical properties at the "materials level", in addition to the studies at the 'structural level' are needed to fill the gap in present knowledge and to achieve a complete understanding of the mechanical properties of bone.
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Perspective on the Development of High‐Toughness Ceramics
TL;DR: A review of fracture mechanics in structural ceramics can be found in this paper, where the authors provide a perspective regarding the evolution of this field and succinct descriptions of current understanding.
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The dentin substrate: structure and properties related to bonding.
TL;DR: Emphasis was placed on the major structural components of the tissue, including the collagen based organic matrix and its mineral reinforcement, the distribution of these components and their microstructural organization as related to mechanical properties and response to demineralization.
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Mechanisms of fatigue-crack propagation in ductile and brittle solids
TL;DR: In this article, the authors examined the mechanisms of fatigue-crack propagation with particular emphasis on the similarities and differences between cyclic crack growth in ductile materials such as metals, and corresponding behavior in brittle materials, such as intermetallics and ceramics.