Tongue thickness measured by ultrasonography is associated with tongue pressure in the Japanese elderly
2020
The term “oral frailty” reflects the fact that oral health is associated with physical frailty and mortality. Tongue thickness measurement is one of the evaluations for swallowing function. The aim of this study was to investigate the relationship between tongue thickness and tongue pressure in the Japanese elderly. We evaluated 254 elderly patients; all the participants underwent tongue ultrasonography and tongue pressure measurement. To determine tongue thickness, we measured the vertical distance from the surface of the mylohyoid muscle to the tongue dorsum using ultrasonography. Result analyses revealed that tongue thickness was linearly associated with tongue pressure in both sexes. In male participants, dyslipidemia, lower leg circumference, and tongue pressure were independently significantly associated with tongue thickness. In female participants, body mass index and tongue pressure were independently significantly associated with tongue thickness. Tongue thickness was significantly decreased by age for both men and women. The optimal cutoff for tongue thickness to predict the tongue pressure of
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