|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Biological Materials Science
||Time Dependent Deformation Behavior of Aged Dentin
||Carolina Montoya, Alex Ossa, Dwayne Arola
|On-Site Speaker (Planned)
The mechanical response of dentin is known to be influenced by changes in the density and diameter of its dentinal tubules (i.e porosity), and changes in chemical composition along the tooth. Several researchers have previously studied the bulk viscoelastic properties of coronal, intertubular and peritubular dentin. However, little is known about the time-dependent behavior of aged dentin and the importance of its spatial structure and composition variations. In this study, the spherical indentation response of aged coronal dentin was analyzed for outer, middle and inner dentin, and its time dependent deformation was modeled in terms of its microstructure (i.e. tubules) and chemical composition. The results showed a good agreement between experimental data and the predicted values of the time dependent behavior of the tissue. A significant decrease in the time dependent deformation response of dentin with aging was found when comparing with young samples.
||Planned: Supplemental Proceedings volume