Measurement of the short-term viscoelastic properties of the periodontal ligament using stress relaxation

Roisin Tohill, M. Hien, M R McGuinness, L Chung, R. L. Reuben

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The periodontal ligament (PDL) plays an important role in initiating tooth movement when loads are applied to teeth with orthodontic appliances. It is also the most accessible ligament in the human body as it can be directly manipulated (via the teeth) without surgical intervention. Findings are presented here from a prototype palpation device for making load-displacement measurements, intended ultimately for in vivo use on humans. Here, the device is applied in vitro to a number of pig-jaws to assess its ability to distinguish visco-elastic properties of the PDL. Four jaws were tested, each test consisting of the application of a series of step displacements to the second mandibular premolar, and allowing the stress to relax over a period of up to 35 seconds. The resulting stress relaxation curves are described by a three-parameter visco-elastic model with two elastic parameters and one viscous parameter. The values of these parameters are consistent between animals and between tests on a given animal, and are reasonably consistent with other authors. © 2009 Springer Berlin Heidelberg.

Original languageEnglish
Title of host publication4th European Conference of the International Federation for Medical and Biological Engineering - ECIFMBE 2008
Pages1467-1470
Number of pages4
Volume22
DOIs
Publication statusPublished - 2008
Event4th European Conference of the International Federation for Medical and Biological Engineering - Antwerp, Belgium
Duration: 23 Nov 200827 Nov 2008

Conference

Conference4th European Conference of the International Federation for Medical and Biological Engineering
Abbreviated titleECIFMBE 2008
CountryBelgium
CityAntwerp
Period23/11/0827/11/08

Keywords

  • Periodontal ligament
  • Three-parameter model
  • Tooth displacement
  • Visco-elastic

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  • Cite this

    Tohill, R., Hien, M., McGuinness, M. R., Chung, L., & Reuben, R. L. (2008). Measurement of the short-term viscoelastic properties of the periodontal ligament using stress relaxation. In 4th European Conference of the International Federation for Medical and Biological Engineering - ECIFMBE 2008 (Vol. 22, pp. 1467-1470) https://doi.org/10.1007/978-3-540-89208-3_348