CHAUNCEY, H. H. Altered masticatory function and perceptual estimates of chewing experience. Spec. Care Dentist. 1981, 1, 250-255
FELDMAN, R. S. Aging and mastication : Changes in performance and in the swallowing threshold with natural dentition. J. Am. Geriatr. Soc. 1980, 28, 97-103
PERCIVAL, R. S. Flow rates of resting whole and stimulated parotid saliva in relation to age and gender. J. Dent. Res. 1994, 73, 1416-1420