Elastic modulus and stress–strain response of human enamel by nano-indentation

He, Long; Fujisawa, Naoki; Swain, Michael V.

doi:10.1016/j.biomaterials.2006.03.045

Cited by 190 publications

(127 citation statements)

References 26 publications

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“…It has been suggested that enamel varies in mineral content, amount of organic matrix and its chemical constituency [17]. The mechanical properties of enamel also change from one location to another on the same tooth, and the chemical composition and prism orientation alters at different sites on the enamel surface [21,22,6]. Variations in the physical and chemical properties of enamel within the same tooth and between different teeth may explain the variation in our measurements of H and E.…”

Section: Discussionmentioning

confidence: 87%

“…The mechanical properties of enamel depend on the location in the tooth [20]. Location affects both chemical composition and prism orientation [21,22,6].…”

Section: Discussionmentioning

confidence: 99%

“…Microhardness changes have been related to a loss (demineralisation) or gain (remineralisation) of the mineral/organic content of the dental structure, the direction of hydroxyapatite crystals and the anisotropic nature of enamel [23,24,6]. The nanoindentation microhardness test is suitable for determining small changes in surface microhardness and elastic modulus of dental hard tissue [25].…”

Section: Discussionmentioning

confidence: 99%

“…Elastic modulus (E) describes the relative stiffness or rigidity of a material [5]. The E of enamel is a function of the contact area and the effective volume of the contact stress field applied, regardless of the type of indenter tip used [6]. The effects of bleaching materials on enamel are poorly understood.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogen Peroxide Tooth Whitening Agent Effect on the Nanomechanical Properties of Enamel

Mansouri¹,

Khzam²

2017

J Res Med Den Sci

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Section: Discussionmentioning

confidence: 87%

“…The mechanical properties of enamel depend on the location in the tooth [20]. Location affects both chemical composition and prism orientation [21,22,6].…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrogen Peroxide Tooth Whitening Agent Effect on the Nanomechanical Properties of Enamel

Mansouri¹,

Khzam²

2017

J Res Med Den Sci

View full text Add to dashboard Cite

show abstract

“…The contact point was corrected implementing the method proposed by Moseson et al [55] and the polished sample was used as a reference for stiffness correction. The models chosen to interpret analytically the indentation data were those of Hertz, Oliver and Pharr and Tabor, following the approach of He and Swain [56].…”

Section: Methodsmentioning

confidence: 99%

Selective etching of injection molded zirconia-toughened alumina: Towards osseointegrated and antibacterial ceramic implants

et al. 2016

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Due to their outstanding mechanical properties and excellent biocompatibility, zirconiatoughened alumina (ZTA) ceramics have become the gold standard in orthopedics for the fabrication of ceramic bearing components over the last decade. However, ZTA is bioinert, which hampers its implantation in direct contact with bone. Furthermore, periprosthetic joint infections are now the leading cause of failure for joint arthroplasty prostheses. To address both issues, an improved surface design is required: a controlled micro-and nano-roughness can promote osseointegration and limit bacterial adhesion whereas surface porosity allows loading and delivery of antibacterial compounds. In this work, we developed an integrated strategy aiming to provide both osseointegrative and antibacterial properties to ZTA surfaces. The microtopography was controlled by injection molding. Meanwhile a novel process involving the selective dissolution of zirconia (selective etching) was used to produce nano-roughness and interconnected nanoporosity. Potential utilization of the porosity for loading and delivery of antibiotic molecules was demonstrated, and the impact of selective etching on mechanical properties and hydrothermal stability was shown to be limited. The combination of injection molding and selective etching thus appears promising for fabricating a new generation of ZTA components implantable in direct contact with bone.3

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The role of tooth enamel mechanical properties in primate dietary adaptation

Constantino

Lee

Gerbig

et al. 2012

American J Phys Anthropol

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Primate teeth adapt to the physical properties of foods in a variety of ways including changes in occlusal morphology, enamel thickness, and overall size. We conducted a comparative study of extant primates to examine whether their teeth also adapt to foods through variation in the mechanical properties of the enamel. Nanoindentation techniques were used to map profiles of elastic modulus and hardness across tooth sections from the enamel-dentin junction to the outer enamel surface in a broad sample of primates including apes, Old World monkeys, New World monkeys, and lemurs. The measured data profiles feature considerable overlap among species, indicating a high degree of commonality in mechanical properties. These results suggest that differences in the load-bearing capacity of primate molar teeth are more a function of morphology-particularly tooth size and enamel thickness-than of underlying mechanical properties.

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Elastic modulus and stress–strain response of human enamel by nano-indentation

Cited by 190 publications

References 26 publications

Hydrogen Peroxide Tooth Whitening Agent Effect on the Nanomechanical Properties of Enamel

Hydrogen Peroxide Tooth Whitening Agent Effect on the Nanomechanical Properties of Enamel

Selective etching of injection molded zirconia-toughened alumina: Towards osseointegrated and antibacterial ceramic implants

The role of tooth enamel mechanical properties in primate dietary adaptation

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