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Biomechanical Response in Mandibular Bone due to Mastication Loading on 3-Unit Fixed Partial Dentures

  1. Clarice Field c.field{at}usyd.edu.au1
  2. Qing Li q.li{at}usyd.edu.au1
  3. Wei Li wei{at}aeromech.usyd.edu.au1
  4. Michael Swain mswain{at}mail.usyd.edu.au2
  1. 1School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW 2006, Australia
  2. 2Faculty of Dentistry, University of Sydney, Surry Hills, NSW 2010, Australia

Abstract

An understanding of functional responses in oral bone is a crucial component of dental biomechanics. The purpose of this study was to investigate the potential biological remodelling response during mastication on the mandibular pre- and post-insertion of a fixed partial denture (FPD). A series of three-dimensional (3D) finite element analysis (FEA) models were presented pre- and postextraction to determine the biomechanical responses to masticatory loading in the anterior mandible. Equivalent strains were analysed at lingual/buccal and mesial/distal areas of the premolar to molar region and quantified to anticipate bone remodelling response. Mandibular bone incorporating an FPD experienced substantially greater stress/strain magnitudes than that prior to placement of fixed prosthodontics, which is suggestive of engagements of bone remodelling. The results suggest similar outcomes to those reported clinically. Developing a simulation reflecting the outcomes of restorative treatment can provide meaningful insight into restorative treatment planning, clinical outcomes, and fixed prosthodontics designs.

  • Received May 26, 2009.
  • Revision received July 22, 2009.
  • Accepted August 7, 2009.
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This Article

  1. J Dent Biomech vol. 1 no. 1 902537

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