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    • 1. 发明授权
    • Orthodontic systems with resilient appliances
    • 具有弹性器具的正畸系统
    • US07234936B2
    • 2007-06-26
    • US10983457
    • 2004-11-08
    • Ming-Lai LaiTsi-Zong Tzou
    • Ming-Lai LaiTsi-Zong Tzou
    • A61C3/00
    • A61C7/08A61C7/20A61C7/30
    • Systems for moving teeth of a patient's dental arch from a first tooth arrangement to a second tooth arrangement include a plurality of resilient appliances such as positioning trays or elongated arch members that are used in sequence. Each appliance of the systems includes a row of spaced apart couplings for connection to respective teeth of the dental arch. The appliances have certain geometric characteristics that match the geometric characteristics of other appliances of the system, and at least one appliance has a stiffness that is greater than the stiffness of at least one other appliance.
    • 用于将患者牙弓的牙齿从第一齿布置移动到第二牙齿布置的系统包括多个弹性装置,例如定位托盘或细长拱形构件,其依次使用。 系统的每个装置包括一排间隔开的联接器,用于连接到牙弓的相应牙齿。 设备具有与系统的其他设备的几何特性匹配的特定几何特征,并且至少一个设备的刚度大于至少一个其他设备的刚度。
    • 8. 发明授权
    • Use of finite element analysis for orthodontic mechanics and appliance selection
    • 使用有限元分析进行正畸力学和器具选择
    • US06739870B2
    • 2004-05-25
    • US09965707
    • 2001-09-26
    • Ming-Lai LaiAndrew W. Chen
    • Ming-Lai LaiAndrew W. Chen
    • A61C300
    • A61C7/00A61C7/002A61C9/0046
    • An effective orthodontic treatment is determined by storing an original position model of a patient's teeth. The patient's teeth are then displayed according to the original position model, and appliances are selected according to a proposed orthodontic treatment. A final position model of the patient's teeth is also stored, and the selected appliances are displayed based upon the final position model. A finite element analysis is performed based on the proposed orthodontic treatment and on a movement of the patient's teeth from the final position to the original position in order to determine stresses, strains, forces, and/or moments on the appliances and on the patient's teeth and bone. If the stresses, strains, forces, and/or moments are not optimized, a new orthodontic treatment is proposed and the process is repeated.
    • 通过存储患者牙齿的原始位置模型来确定有效的矫正治疗。 然后根据原始位置模型显示患者的牙齿,并根据提出的正畸治疗选择器具。 还存储患者牙齿的最终位置模型,并且基于最终位置模型显示所选择的装置。 基于提出的正畸治疗和患者的牙齿从最终位置到原始位置的运动来进行有限元分析,以便确定器具和患者牙齿上的应力,应力,力和/或力矩 和骨头。 如果应力,应变,力和/或力矩未被优化,则提出新的正畸治疗并重复该过程。