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Salivary Flow Rate and Masticatory Performance in Relation to Functional Dependency in Older Adults: Potential Modification by Depressive Symptoms.

Journal of oral rehabilitation · Thwin KM, Hasegawa Y, Lin WT, Nohno K, Ogawa H · 2026-08-07

Researchers found that reduced salivary flow rate was linked to difficulties with daily activities in older adults, with this association stronger among those experiencing depressive symptoms; poor chewing ability alone showed no independent association.

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