A Study of Some Factors Influencing Phagocytosis of Cariogenic Streptococci by Caries-free and Caries-active Individuals

Abstract
Concentrated parotid saliva from either caries-resistant or caries-active individuals, when tested in vitro, greatly enhanced the phagocytosis of many cariogenic streptococci. The amount of IgA secreted by the parotid glands or found in the whole saliva of both groups was not significantly different.