Hohl T H, Tucek W H
J Maxillofac Surg. 1982 Feb;10(1):1-7. doi: 10.1016/s0301-0503(82)80003-9.
Mathematical models have been developed to predict hypothetical forces acting on the mandibular condyles during mastication, but no direct measurements of condylar forces in vivo have been reported. This preliminary study presents the technical development of an instrumented prosthesis which was implanted in the mandibular ramus of a baboon, and some preliminary data collected while measuring with this prosthesis the condylar forces exerted during simulated mastication under general anaesthesia. Simulated mastication was induced by stimulating the motor tracts of the trigeminal nerve bilaterally, and the forces in response to increasing amperage were recorded. The pathogenesis of TMJ degeneration may be more fully understood by directly measuring the direction and magnitude of forces acting on the condyles during function. In addition, the future development of a total TMJ replacement for traumatized, deranged, or degeneratively impaired joints, must be accomplished with reliably engineered prostheses based upon direct force measurements.
已经开发出数学模型来预测咀嚼过程中作用于下颌髁突的假设力，但尚未有关于体内髁突力的直接测量报告。这项初步研究展示了一种植入狒狒下颌支的仪器化假体的技术开发，以及在全身麻醉下使用该假体测量模拟咀嚼过程中施加的髁突力时收集的一些初步数据。通过双侧刺激三叉神经的运动束诱导模拟咀嚼，并记录随着电流增加而产生的力。通过直接测量功能过程中作用于髁突的力的方向和大小，可能会更全面地理解颞下颌关节退变的发病机制。此外，对于创伤性、紊乱性或退行性受损关节的全颞下颌关节置换的未来发展，必须基于直接力测量，用可靠设计的假体来完成。
