Use of ferrule rings as stress dissipators in temporomandibular joint intramedullary implants: A finite element analysis study

Martin Pendola, Jake Cresta, Alesha Castillo, Thorsten Kirsch

Research output: Contribution to journalArticle

Abstract

The use of temporomandibular joint (TMJ) implants is considered to be a reliable treatment for some TMJ disorders when TMJ anatomical integrity is compromised. Among all of the designs proposed for these devices, intramedullary approaches are relatively new, and they may offer several advantages compared to those of past models with a lateral approach. In this report, we use finite element analysis (FEA) to calculate stress forces of a TMJ implant featuring a ferrule ring, which is frequently used in engineering as a stress distractor to reduce the splinter effect. Our analysis suggests that the addition of a ferrule ring in the TMJ implant helps to reduce von Mises stresses in the device and displacement forces in the volume and surface of the implant. These results suggest that including a ferrule ring in a TMJ implant may contribute to the stability and outcome of a TMJ implant by reducing component stress and displacement forces.

Original languageEnglish (US)
Pages (from-to)227-234
Number of pages8
JournalJournal of long-term effects of medical implants
Volume28
Issue number4
DOIs
StatePublished - 2018

Keywords

  • Finite element analysis
  • Implants
  • Intramedullary TMJ implant
  • TMJ

ASJC Scopus subject areas

  • Biomedical Engineering
  • Dentistry(all)

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