Resonant ultrasound spectroscopy measurements of the elastic constants of human dentin

Kinney, J.H.; Gladden, Joseph R.; Marshall, Grayson W.; Marshall, Sally J.; So, Jin H.; Maynard, J. D.

doi:10.1016/j.jbiomech.2003.09.028

Cited by 138 publications

(88 citation statements)

References 19 publications

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“…6.9% in the top layer to max 35.2% at the bottom layer. The mean values of anisotropy obtained analytically and numerically were comparable but they were higher than relatively low anisotropy (~10%) suggested by Kinney et al 23 Our results underlined the high impact of the dentinal tubules on the elastic properties and anisotropy of the dentin. This was in opposition to Kinney et al, who stated that the intertubular dentin matrix governed the elastic behavior of dentin, and that the tubules did not introduce elastic anisotropy.…”

Section: Discussionsupporting

confidence: 71%

The mechanical properties of human dentin for 3-D finite element modeling – numerical and analytical evaluation

Grzebieluch¹,

Będziński²,

Czapliński³

et al. 2017

Adv Clin Exp Med

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Section: Discussionsupporting

confidence: 71%

The mechanical properties of human dentin for 3-D finite element modeling – numerical and analytical evaluation

Grzebieluch¹,

Będziński²,

Czapliński³

et al. 2017

Adv Clin Exp Med

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“…This is consistent with prior studies, and is likely due to the variation in density and elastic modulus both within and among the samples. 1,8,11 A t-test revealed that there was a negligible statistical difference between longitudinal and crosssectional samples of enamel ͑P = 0.44͒; however, the difference between longitudinal and crosssectional samples of dentin was significant ͑P = 0.003͒. Others have reported dependence of velocity on occluso-apical depth in longitudinal specimens of dentin.…”

Section: Resultsmentioning

confidence: 97%

“…Dentin, the inner structural material of a tooth, is a complex composite consisting of a highly organized, mineralized collagenous matrix. 8 Unlike bone, dentin is organized around subparallel cellular extensions, or odontoblastic processes, that create tubules of micron-scale width and millimeter-scale length, and are organized in an oblique radial macropattern. Enamel, the hard outer tooth surface, is a very dense fibrous ceramic composite that forms a partly interrupted continuous matrix with nano-, micro-, and macroscale organizations.…”

Section: Introductionmentioning

confidence: 99%

Tissue mimicking materials for dental ultrasound

Singh¹,

Culjat²,

Grundfest³

et al. 2008

The Journal of the Acoustical Society of America

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While acoustic tissue mimicking materials have been explored for a variety of soft and hard biological tissues, no dental hard tissue mimicking materials have been characterized. Tooth phantoms are necessary to better understand acoustic phenomenology within the tooth environment and to accelerate the advancement of dental ultrasound imaging systems. In this study, soda lime glass and dental composite were explored as surrogates for human enamel and dentin, respectively, in terms of compressional velocity, attenuation, and acoustic impedance. The results suggest that a tooth phantom consisting of glass and composite can effectively mimic the acoustic behavior of a natural human tooth.

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“…Dentin elastic moduli obtained from longitudinal and shear wave velocity measurements by Lees & Rollins (1972) indicate that dentin is transversely isotropic with higher stiffness in the tubule direction. The elastic moduli measured by Kinney et al (2004) using resonant ultrasound spectroscopy also indicate that the dentin is transversely isotropic, however, with higher stiffness perpendicular to the tubule direction. These measurements have been performed on millimetre scale samples.…”

Section: Elastic Properties and Transverse Isotropy Parameters For Dementioning

confidence: 93%

Parametric study of the effect of phase anisotropy on the micromechanical behaviour of dentin–adhesive interfaces

Misra

Spencer

Marangos

et al. 2005

J. R. Soc. Interface.

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A finite element (FE) model has been developed based upon the recently measured microscale morphological, chemical and mechanical properties of dentin-adhesive (d-a) interfaces using confocal Raman microspectroscopy and scanning acoustic microscopy (SAM). The results computed from this FE model indicated that the stress distributions and concentrations are affected by the micro-scale elastic properties of various phases composing the d-a interface. However, these computations were performed assuming isotropic material properties for the d-a interface. The d-a interface components, such as the peritubular and intertubular dentin, the partially demineralized dentin and the so-called 'hybrid layer' adhesive-collagen composite, are probably anisotropic. In this paper, the FE model is extended to account for the probable anisotropic properties of these d-a interface phases. A parametric study is performed to study the effect of anisotropy on the micromechanical stress distributions in the hybrid layer and the peritubular dentin phases of the d-a interface. It is found that the anisotropy of the phases affects the region and extent of stress concentration as well as the location of the maximum stress concentrations. Thus, the anisotropy of the phases could effect the probable location of failure initiation, whether in the peritubular region or in the hybrid layer.

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Resonant ultrasound spectroscopy measurements of the elastic constants of human dentin

Cited by 138 publications

References 19 publications

The mechanical properties of human dentin for 3-D finite element modeling – numerical and analytical evaluation

The mechanical properties of human dentin for 3-D finite element modeling – numerical and analytical evaluation

Tissue mimicking materials for dental ultrasound

Parametric study of the effect of phase anisotropy on the micromechanical behaviour of dentin–adhesive interfaces

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