Determination of the Elastic-plastic Transition of Human Enamel by Nanoindentation

Siang Fung Ang, Torben Scholz, Arndt Klocke & Gerold A. Schneider
Objectives/Methods: From a materials scientist's perspective, dental materials used for tooth repair should exhibit compatible mechanical properties. Fulfillment of this criterion is complicated by the fact that teeth have a hierarchical structure with changing mechanical behavior at different length scales. In this study, nanoindentation with an 8 μm spherical indenter was used to determine the elastic/plastic transition under contact loading for enamel. Results: The indentation elastic/plastic transition of enamel at the length scale of several...
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