AFM investigation of mechanical properties of dentin

Sidney R. Cohen, Nathan Apter, Stephen Jesse, Sergei Kalinin, David Barlam, Adi Idit Peretz, Daniel Ziskind, H. Daniel Wagner

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Mechanical properties of peritubular dentin were investigated using scanning probe microscopy techniques, namely Nanoindentation and Band Excitation. Particular attention was directed to the possible existence of a gradient in these properties moving outward from the tubular lumen to the junction with the intertubular dentin. Finite element analysis showed that the influence of the boundaries is small relative to the effects observed. Thus, these results strongly support the concept of a lowering of modulus and hardness from the tubular exterior to its periphery, which appear to correlate with graded changes in the mineral content.

Original languageEnglish
Pages (from-to)65-72
Number of pages8
JournalIsrael Journal of Chemistry
Volume48
Issue number2
DOIs
StatePublished - 2008

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