Analysis of temporomandibular joint dysfunction in paediatric patients with unilateral crossbite using automatically generated finite element models
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING(2020)
Abstract
The evaluation of temporomandibular joint (TMJ) dysfunction using finite element models is a time consuming process that requires extensive technical knowledge. We combined a statistical active appearance model with automated modelling algorithms to biomechanically study the relationship between TMJ malformations and dysfunction in radiographs from 20 paediatric patients with unilateral crossbite. A fitting algorithm (fitting error < 4%) recognised the TMJ shape and adjusted the dimensions of each patient-specific 2D FE model, which was then used to compute 2 different joint movements. Significant functional differences were observed between the crossbite and non-cross bite sides, and the shape-function relation was verified.
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Key words
Active appearance model,automatic modelling,finite element analysis,patient-specific model,unilateral crossbite
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