The study aimed to investigate the relationship between tongue motor function, lip motor function, and mixing ability in 54 elderly complete denture wearers. Maximum tongue pressure and oral diadochokinesis were measured tongue and lip motor functions. A color-changeable, chewing gum evaluated mixing ability. The study identified maximum tongue pressure, the number of repetitions of the syllable “ka,” and gender as significant predictors for mixing ability among complete denture wearers.

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