Journal of Prosthodontic Research

Supplementary Video 1: The modal shapes at the natural frequency of 674 Hz in Subject A. To facilitate understanding, we have provided a Supplementary video (Supplementary Video 1). Supplementary Video 2: The modal shapes at the natural frequency of 660 Hz in Subject J. To facilitate understanding, we have provided a Supplementary video (Supplementary Video 2). The maximum displacements: The maximum displacements of every measurement point. The damping ratios: The damping ratios at the natural frequency of all Subjects. Modal shapes: The modal shapes at the natural frequency of all Subjects. A repeated vibration was divided into 24 moments. The moments, including acceleration vectors showing antiphase, were extracted (From the upper left side). The number of vectors in antiphase: A repeated vibration was divided into 24 moments. The acceleration vectors showing antiphase were counted. The number of vectors in antiphase was compared.