Three-dimensional temporomandibular joint muscle attachment morphometry and its impacts on musculoskeletal modeling.

ABSTRACT: In musculoskeletal models of the human temporomandibular joint (TMJ), muscles are typically represented by force vectors that connect approximate muscle origin and insertion centroids (centroid-to-centroid force vectors). This simplification assumes equivalent moment arms and muscle lengths for all fibers within a muscle even with complex geometry and may result in inaccurate estimations of muscle force and joint loading. The objectives of this study were to quantify the three-dimensional (3D) human TMJ muscle attachment morphometry and examine its impact on TMJ mechanics. 3D muscle attachment surfaces of temporalis, masseter, lateral pterygoid, and medial pterygoid muscles of human cadaveric heads were generated by co-registering measured attachment boundaries with underlying skull models

SUBMITTER: She X 

PROVIDER: S-EPMC6239209 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature