[Research progress in multi-body system dynamics modeling in stomatology].

The stomatognathic system is an organic combination of bone, dentition, joints, masticatory muscles and innervation nerves. It is an organ system for the human body to perform mastication, speech, swallowing and other important functions. Due to the complex anatomical structure of stomatognathic system and ethical limitations, it is difficult to directly measure the movement and force by using the biomechanical experimental methods. Multi-body system dynamics is an important tool to study the kinetics and force of a multi-body system, which consists of several objects with relative motion. We can use the method of multi-body system dynamics simulation in engineering to study the movement, soft tissue deformation and force transfer of this complex stomatognathic system. This paper briefly introduces the history and application methods of multi-body system dynamics and the commonly used modeling methods. The application and research progress of multi-body system dynamics modeling methods in the field of stomatology was emphatically summarized, development prospects of current research and difficulties were put forward.口颌系统由颌骨、牙列、关节、咀嚼肌、支配神经等构成，是人体行使咀嚼、语音、吞咽等重要功能的器官系统。由于口颌系统的功能运动精细，解剖结构复杂，加之伦理限制，使用生物力学实验方法直接测量运动和受力情况存在困难。多体系统动力学是研究相互关联的一组刚体与柔性体运动的一门学科，多体系统动力学模型能够同时分析这一组物体的变形与空间运动，为口颌系统运动状态、软组织变形及力的传递的研究提供了重要的数值模拟手段。本综述简要介绍当前常用的人体多体系统动力学建模方法，着重总结多体系统动力学建模方法在口腔医学领域的应用和研究进展，并提出了当前研究的难点问题及发展前景。.