Nanoscopic dynamic mechanical properties of intertubular and peritubular dentin.

Journal of the Mechanical Behavior of Biomedical Materials
H RyouD Arola

Abstract

An experimental evaluation of intertubular and peritubular dentin was performed using nanoindentation and Dynamic Mechanical Analysis (DMA). The objective of the investigation was to evaluate the differences in dynamic mechanical behavior of these two constituents and to assess whether their response is frequency dependent. Specimens of hydrated coronal dentin were evaluated by DMA using single indents over a range of parametric conditions and using scanning probe microscopy. The complex (E∗), storage (E') and loss moduli (E″) of the intertubular and peritubular dentin were evaluated as a function of the dynamic loading frequency and static load in the fully hydrated condition. The mean complex E∗ (19.6 GPa) and storage E' (19.2 GPa) moduli of the intertubular dentin were significantly lower than those for peritubular dentin (E∗ = 31.1 GPa, p < 0.05; E' = 30.3 GPa, p < 0.05). There was no significant influence of dynamic loading frequency on these measures. Although there was no significant difference in the loss modulus (E″) between the two materials (p > 0.05), both constituents exhibited a significant increase in E″ with dynamic load frequency and reduction in the quasi-static component of indentation load. The largest diffe...Continue Reading

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Citations

May 8, 2013·Journal of Biomaterials Science. Polymer Edition·Salvatore SauroManuel Toledano
Apr 20, 2014·International Journal of Oral Science·Ya-Rong ZhangHai-Yang Yu
Aug 25, 2015·Journal of the Mechanical Behavior of Biomedical Materials·Zhongpu ZhangMichael V Swain
May 4, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Heonjune RyouDwayne Arola
Feb 26, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Mustafa Murat MutluayDwayne Arola
Apr 11, 2013·Journal of the Mechanical Behavior of Biomedical Materials·Mobin YahyazadehfarDwayne Arola
Jan 2, 2013·Journal of the Mechanical Behavior of Biomedical Materials·Mustafa Murat MutluayDwayne Arola
Mar 29, 2016·Journal of the Mechanical Behavior of Biomedical Materials·Bingbing An, H Daniel Wagner
Sep 4, 2013·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Manila ChieruzziJosé M Kenny
Aug 12, 2014·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Roberta Tarkany BastingAna Karina Bedran-Russo
Jan 8, 2014·Journal of the Mechanical Behavior of Biomedical Materials·Gerardo José JovesJunji Tagami
May 15, 2013·Journal of Structural Biology·John D Currey, Ron Shahar
Sep 27, 2014·Journal of the Mechanical Behavior of Biomedical Materials·Yi ChenXinhua Gu
Dec 17, 2014·Journal of the Mechanical Behavior of Biomedical Materials·Heonjune RyouDwayne Arola
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Dec 29, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·Dominique WeimannHajar Razi
Dec 9, 2020·Journal of the Mechanical Behavior of Biomedical Materials·Manuel ToledanoSalvatore Sauro
Dec 7, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·Amirhossein EmamianMohammad Tafazzoli-Shadpour
Jan 29, 2020·Acta Biomaterialia·Tijana LainovićThomas Dehoux
Sep 23, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·W YanD Arola
May 20, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Jiajie MaoShengbin Huang

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