Research on the objective tongue movement range measuring method aiming at evaluation of oral function

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The motor function of a tongue is important in order to exhibit a food intake and a swallowing function. Measurement of the muscular power of a tongue (tongue pressure) is measured by using an instrument. However, objective measurement of the tongue movable range is seldom performed. Therefore, I developed the equipment which can measure for the tongue movable range objectively. And I examined the relevance of examination of the reliability of measured value, and a tongue movable range and other measured value (body measurement value).