Dentin viscoelastic properties

Balooch M, Wu-Magidi IC, Balazs A, Lundkvist AS, Marshall SJ, Marshall GW, Siekhaus WJ, Kinney JH Viscoelastic properties of demineralized human dentin measured in water with atomic force microscope (AFM)-based indentation. J Biomed Mater Res 1998 40 539-544. 

Lugassy, A. A. 1968. Mechanical and Viscoelastic Properties of Bone and Dentin in Compression, thesis. Metallurgy and Materials Science, University of Pennsylvania. 

Table A3.7 Elastic Moduli and Viscoelastic Properties of Human Dentin and Enamel...

There are significant omissions in the data available in the literature. Most notable, is the lack of quantitative analysis of the organic phase of dentin and enamel, and determination of the viscoelastic properties of dentin. The lack of data is attributed to the technical difficulty required to make such measurements and the heterogeneous nature of the dentin, which imparts large variations in these data depending on anatomical location. Other significance absences are the lack of electrical and thermal properties. Finally, vacancies in the tables provided demonstrate omissions in available data. 

Measured some viscoelastic properties of human radicular dentin under constant strain. Linear viscoelastic theory applied. Strengths unique examination of viscoelastic properties, defined orientation of dentinal tubules, storage conditions and testing environment well controlled. Limitations large scatter in Hi(t), mixed data for different teeth. 

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