The necessity for the tongue exercise observed from aging change of the tongue moving ability.

从比较的舌头运动与咀嚼功能的年轻人和老年人的牙齿，有人建议，老年人正在应对的变化，发生了与老化，通过补充必要的工作量形成的食团延长舌头接触的持续时间在一个大面积内腭。提示老年人有必要进行舌操锻炼。这些现象在老年全口义齿患者中更为明显。全口义齿戴用者必须进行更多的舌运动，并认为有必要给予义齿基托腭部厚度。

From comparison of the tongue movement with masticatory function of the young and elderly dentate, it was suggested that the elderly were coping with the change that took place with aging by supplementing the workload necessary for the formation of the bolus of food by extending the duration of tongue contact over a large area within the palate. The results suggested that elderly dentate were necessary to take the tongue exercise. These phenomenon appeared more clearly in the elderly complete denture wearers. The complete denture wearers had to take the more tongue exercise, and thought to be necessary to give the thickness to the palatal part of the denture base.