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Experimental Analysis of the Elastic Modulus of Periodontal Ligament in Nanoindentation

[+] Author Affiliations
Yu Yang, Wencheng Tang

Southeast University, Nanjing, China

Yao jun Wang

Stomatological Hospital of Jiangsu Province, Nanjing, China

Paper No. DETC2016-59040, pp. V004T08A022; 5 pages
  • ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 4: 21st Design for Manufacturing and the Life Cycle Conference; 10th International Conference on Micro- and Nanosystems
  • Charlotte, North Carolina, USA, August 21–24, 2016
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5014-5
  • Copyright © 2016 by ASME


The periodontal ligament (PDL) is a soft connective tissue which exhibits an inhomogeneous, nonlinear, and anisotropic material properties. and the elastic modulus of different positions on each section are not the same, analysis of the material properties of PDL enables a better understanding of biomechanical features for tooth movement. The aim of this study was to study the elastic modulus of different section of PDL in nanoindentation. Experimental results indicate that the average elastic modulus elastic modulus in midroot are lower than cervical margin and apex, and there is large change in the circumferential regions.

Copyright © 2016 by ASME



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