Fluid pressurization and tractional forces during TMJ disc loading: A biphasic finite element analysis

Y. Wu, S. E. Cisewski, F. Wei, X. She, T. S. Gonzales, Laura Iwasaki, Jeffrey Nickel, H. Yao

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Objectives: To investigate the ploughing mechanism associated with tractional force formation on the temporomandibular joint (TMJ) disc surface. Setting and Sample Population: Ten left TMJ discs were harvested from 6- to 8-month-old male Yorkshire pigs. Materials and Methods: Confined compression tests characterized mechanical TMJ disc properties, which were incorporated into a biphasic finite element model (FEM). The FEM was established to investigate load carriage within the extracellular matrix (ECM) and the ploughing mechanism during tractional force formation by simulating previous in vitro plough experiments. Results: Biphasic mechanical properties were determined in five TMJ disc regions (average±standard deviation for aggregate modulus: 0.077±0.040 MPa; hydraulic permeability: 0.88±0.37×10−3 mm4/Ns). FE simulation results demonstrated that interstitial fluid pressurization is a dominant loading support mechanism in the TMJ disc. Increased contact load and duration led to increased solid ECM strain and stress within, and increased ploughing force on the surface of the disc. Conclusion: Sustained mechanical loading may play a role in load carriage within the ECM and ploughing force formation during stress-field translation at the condyle–disc interface. This study further elucidated the mechanism of ploughing on tractional force formation and provided a baseline for future analysis of TMJ mechanics, cartilage fatigue and early TMJ degeneration.

Original languageEnglish (US)
Pages (from-to)151-156
Number of pages6
JournalOrthodontics and Craniofacial Research
Volume20
DOIs
StatePublished - Jun 1 2017
Externally publishedYes

Fingerprint

Temporomandibular Joint Disc
Finite Element Analysis
Extracellular Matrix
Temporomandibular Joint
Extracellular Fluid
Mechanics
Cartilage
Fatigue
Permeability
Swine
Population

Keywords

  • biphasic theory
  • finite element model
  • fluid pressurization
  • temporomandibular joint
  • tractional force

ASJC Scopus subject areas

  • Orthodontics
  • Surgery
  • Oral Surgery
  • Otorhinolaryngology

Cite this

Fluid pressurization and tractional forces during TMJ disc loading : A biphasic finite element analysis. / Wu, Y.; Cisewski, S. E.; Wei, F.; She, X.; Gonzales, T. S.; Iwasaki, Laura; Nickel, Jeffrey; Yao, H.

In: Orthodontics and Craniofacial Research, Vol. 20, 01.06.2017, p. 151-156.

Research output: Contribution to journalArticle

@article{a72ab02504fa4c91ac92cfe57d2e3b28,
title = "Fluid pressurization and tractional forces during TMJ disc loading: A biphasic finite element analysis",
abstract = "Objectives: To investigate the ploughing mechanism associated with tractional force formation on the temporomandibular joint (TMJ) disc surface. Setting and Sample Population: Ten left TMJ discs were harvested from 6- to 8-month-old male Yorkshire pigs. Materials and Methods: Confined compression tests characterized mechanical TMJ disc properties, which were incorporated into a biphasic finite element model (FEM). The FEM was established to investigate load carriage within the extracellular matrix (ECM) and the ploughing mechanism during tractional force formation by simulating previous in vitro plough experiments. Results: Biphasic mechanical properties were determined in five TMJ disc regions (average±standard deviation for aggregate modulus: 0.077±0.040 MPa; hydraulic permeability: 0.88±0.37×10−3 mm4/Ns). FE simulation results demonstrated that interstitial fluid pressurization is a dominant loading support mechanism in the TMJ disc. Increased contact load and duration led to increased solid ECM strain and stress within, and increased ploughing force on the surface of the disc. Conclusion: Sustained mechanical loading may play a role in load carriage within the ECM and ploughing force formation during stress-field translation at the condyle–disc interface. This study further elucidated the mechanism of ploughing on tractional force formation and provided a baseline for future analysis of TMJ mechanics, cartilage fatigue and early TMJ degeneration.",
keywords = "biphasic theory, finite element model, fluid pressurization, temporomandibular joint, tractional force",
author = "Y. Wu and Cisewski, {S. E.} and F. Wei and X. She and Gonzales, {T. S.} and Laura Iwasaki and Jeffrey Nickel and H. Yao",
year = "2017",
month = "6",
day = "1",
doi = "10.1111/ocr.12147",
language = "English (US)",
volume = "20",
pages = "151--156",
journal = "Orthodontics and Craniofacial Research",
issn = "1601-6335",
publisher = "Wiley-Blackwell",

}

TY - JOUR

T1 - Fluid pressurization and tractional forces during TMJ disc loading

T2 - A biphasic finite element analysis

AU - Wu, Y.

AU - Cisewski, S. E.

AU - Wei, F.

AU - She, X.

AU - Gonzales, T. S.

AU - Iwasaki, Laura

AU - Nickel, Jeffrey

AU - Yao, H.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Objectives: To investigate the ploughing mechanism associated with tractional force formation on the temporomandibular joint (TMJ) disc surface. Setting and Sample Population: Ten left TMJ discs were harvested from 6- to 8-month-old male Yorkshire pigs. Materials and Methods: Confined compression tests characterized mechanical TMJ disc properties, which were incorporated into a biphasic finite element model (FEM). The FEM was established to investigate load carriage within the extracellular matrix (ECM) and the ploughing mechanism during tractional force formation by simulating previous in vitro plough experiments. Results: Biphasic mechanical properties were determined in five TMJ disc regions (average±standard deviation for aggregate modulus: 0.077±0.040 MPa; hydraulic permeability: 0.88±0.37×10−3 mm4/Ns). FE simulation results demonstrated that interstitial fluid pressurization is a dominant loading support mechanism in the TMJ disc. Increased contact load and duration led to increased solid ECM strain and stress within, and increased ploughing force on the surface of the disc. Conclusion: Sustained mechanical loading may play a role in load carriage within the ECM and ploughing force formation during stress-field translation at the condyle–disc interface. This study further elucidated the mechanism of ploughing on tractional force formation and provided a baseline for future analysis of TMJ mechanics, cartilage fatigue and early TMJ degeneration.

AB - Objectives: To investigate the ploughing mechanism associated with tractional force formation on the temporomandibular joint (TMJ) disc surface. Setting and Sample Population: Ten left TMJ discs were harvested from 6- to 8-month-old male Yorkshire pigs. Materials and Methods: Confined compression tests characterized mechanical TMJ disc properties, which were incorporated into a biphasic finite element model (FEM). The FEM was established to investigate load carriage within the extracellular matrix (ECM) and the ploughing mechanism during tractional force formation by simulating previous in vitro plough experiments. Results: Biphasic mechanical properties were determined in five TMJ disc regions (average±standard deviation for aggregate modulus: 0.077±0.040 MPa; hydraulic permeability: 0.88±0.37×10−3 mm4/Ns). FE simulation results demonstrated that interstitial fluid pressurization is a dominant loading support mechanism in the TMJ disc. Increased contact load and duration led to increased solid ECM strain and stress within, and increased ploughing force on the surface of the disc. Conclusion: Sustained mechanical loading may play a role in load carriage within the ECM and ploughing force formation during stress-field translation at the condyle–disc interface. This study further elucidated the mechanism of ploughing on tractional force formation and provided a baseline for future analysis of TMJ mechanics, cartilage fatigue and early TMJ degeneration.

KW - biphasic theory

KW - finite element model

KW - fluid pressurization

KW - temporomandibular joint

KW - tractional force

UR - http://www.scopus.com/inward/record.url?scp=85021102671&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85021102671&partnerID=8YFLogxK

U2 - 10.1111/ocr.12147

DO - 10.1111/ocr.12147

M3 - Article

C2 - 28643926

AN - SCOPUS:85021102671

VL - 20

SP - 151

EP - 156

JO - Orthodontics and Craniofacial Research

JF - Orthodontics and Craniofacial Research

SN - 1601-6335

ER -