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本文讨论用二次曝光全息干涉图测定牙体在接受正牙力后所发生的空间运动。计算了在不同位置加力时牙体的瞬时转动中心位置以及在牙周膜约束条件下的阻力中心位置。
This article discusses the use of double-exposure holographic interferograms to determine the spatial movement of the tooth after orthodontic force. The instantaneous center of rotation of the tooth at different positions and the center of resistance under the restraint of periodontal ligament were calculated.