skip to main content

Attention:

The NSF Public Access Repository (NSF-PAR) system and access will be unavailable from 11:00 PM ET on Friday, September 29 until 11:59 PM ET on Saturday, September 30 due to maintenance. We apologize for the inconvenience.


Search for: All records

Creators/Authors contains: "Wei, F."

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. Free, publicly-accessible full text available February 1, 2024
  2. Free, publicly-accessible full text available February 1, 2024
  3. Free, publicly-accessible full text available January 1, 2024
  4. Structured Abstract Objectives

    To investigate the ploughing mechanism associated with tractional force formation on the temporomandibular joint (TMJ) disc surface.

    Setting and Sample Population

    Ten leftTMJdiscs were harvested from 6‐ to 8‐month‐old male Yorkshire pigs.

    Materials and Methods

    Confined compression tests characterized mechanicalTMJdisc properties, which were incorporated into a biphasic finite element model (FEM). TheFEMwas 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 fiveTMJdisc regions (average±standard deviation for aggregate modulus: 0.077±0.040MPa; hydraulic permeability: 0.88±0.37×10−3mm4/Ns).FEsimulation results demonstrated that interstitial fluid pressurization is a dominant loading support mechanism in theTMJdisc. Increased contact load and duration led to increased solidECMstrain 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 theECMand 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 ofTMJmechanics, cartilage fatigue and earlyTMJdegeneration.

     
    more » « less
  5. null (Ed.)
  6. null (Ed.)
  7. null (Ed.)