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.

中文翻译：

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使用自动生成的有限元模型分析儿童单侧反咬合颞下颌关节功能障碍

摘要 使用有限元模型评估颞下颌关节 (TMJ) 功能障碍是一个耗时的过程，需要广泛的技术知识。我们将统计主动外观模型与自动建模算法相结合，以生物力学研究 20 名单侧反咬合儿童患者的 X 光片中 TMJ 畸形与功能障碍之间的关系。拟合算法（拟合误差 < 4%）识别 TMJ 形状并调整每个患者特定 2D FE 模型的尺寸，然后用于计算 2 个不同的关节运动。在反咬合面和非反咬合面之间观察到显着的功能差异，并验证了形状 - 功能关系。