Masatsugu Hada

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To measure the movements of a maxillary denture in vivo it is necessary to analyze the three-dimensional displacements induced. A measuring system consisting of four main units (a magnetic sensor, three optical fiber sensors, a sensor-setting jig, and a recorder) was developed. Using this system, the movements of a maxillary denture were continuously(More)
UNLABELLED A new digital image processing system to observe oral actions is proposed. The system provides analyses of motion pictures along with other physiological signals. The major components are a video tape recorder, a digital image processor, a percept scope, a CCD camera, an A/D converter and a personal computer. Five reference points were marked on(More)
The condition of palatal mucosa caused by wearing a maxillary complete denture closely resembles a closed hydrostatic system. To clarify the viscoelastic properties of the palatal mucosa under such a condition, we measured as a function of the degree of denture displacement during biting movements. For this work, we developed three dimensional(More)
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