[Study of individual variations of the composition of human parotid saliva collected under stimulation].

Human parotid saliva was studied for its qualitative and quantitative composition; alpha-amylase activity, immunoglobulin A and composition were investigated and showed significant variations from one individual sample to another. The same phenomenon was observed with the inorganic components: CA, P, K, Mg, Na, Cl. The influence of the frequency and length of collection of parotid saliva is discussed.