A pilot study comparing three salivary collection methods in an adult population with salivary gland hypofunction

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Abstract
The purpose of this pilot study was to compare the reliability of three collection methods (draining, chewing of gum base, and the Saxon test) for whole saliva using a sample of middle-aged and older ambulatory adults (n = 18) with proven salivary gland hypofunction. The results demonstrated high reliability (r values ranging from 0.91 to 0.80, p < 0.001) for all three methods. MANOVA analysis revealed significant (p < 0.001) differences in flow rates among the draining, chewing-stimulated, and Saxon methods.