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.
-
more » « less
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 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 ). TheFEM 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±0.040MP a; hydraulic permeability: 0.88±0.37×10−3mm4/Ns).FE simulation results demonstrated that interstitial fluid pressurization is a dominant loading support mechanism in theTMJ disc. Increased contact load and duration led to increased solidECM 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 ofTMJ mechanics, cartilage fatigue and earlyTMJ degeneration.
Full Text Available