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  • Title: Relationship of chewing-stimulated whole saliva flow rate and salivary gland size.
    Author: Ono K, Inoue H, Masuda W, Morimoto Y, Tanaka T, Yokota M, Inenaga K.
    Journal: Arch Oral Biol; 2007 May; 52(5):427-31. PubMed ID: 17126285.
    Abstract:
    OBJECTIVE: We have recently reported that unstimulated whole saliva flow rates (UWSFR) correlate positively with salivary gland sizes and body profiles of weight and body mass indices. In the present study, the correlations of chewing-stimulated whole saliva flow rates (CWSFR) with salivary gland sizes and the body profiles were investigated, and the results were compared with those of UWSFR. DESIGN: Saliva samples were collected from 24 healthy young males and 26 females by the spitting method while chewing paraffin and the CWSFRs were measured. UWSFR and the estimated sizes of the three major salivary glands in our previous study were used. RESULTS: The CWSFRs in all subjects and in males correlated positively with UWSFR, but not in females. The CWSFRs in all subjects correlated positively with parotid and/or submandibular gland sizes, weights and body mass indices, just as with UWSFR; however, the correlation coefficients with salivary gland sizes were smaller than those of UWSFR. In contrast to the results of UWSFR, the correlation coefficients of the CWSFRs with parotid gland sizes in all subjects were larger than those with the sizes of the submandibular glands. The CWSFRs in males correlated only with parotid gland sizes, and those in females did not correlate with any of the parameters. CONCLUSIONS: The results suggest that the larger the size of the salivary glands, the greater the CWSFR, at least in males.
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