A plastic intraoral (IO) cup developed to facilitate collection of human parotid saliva was tested on two groups of patients. Samples collected in both IO and tubed cups exhibited no significant differences in lysozyme or lactoperoxidase activity, levels of total protein or secretory IgA, or in flow rates. Results suggest that the IO cup provides a simple, reliable method for collecting parotid saliva.
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Schaefer et al. (1977) studied this question.
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