"[2]Unlike the uterine, placental and vaginal microbiomes, the types of organisms in the salivary microbiota remain relatively constant.
There is no difference between populations of microbes based upon gender, age, diet, obesity, alcohol intake, race, or tobacco use.
[4] One study suggests sharing an environment (e.g., living together) may influence the salivary microbiome more than genetic components.
A number of elements, including diet, dental hygiene, age, underlying medical conditions, and the use of antibiotics, as well as lifestyle choices such as smoking and alcohol consumption, and physiological changes such as pregnancy, the menstrual cycle, and menopause, can exert an influence on the composition of the oral microbiome.
Salivary gland secretions containing high levels of sugar change the oral microbiome and contributes to an environment that is conductive to the formation of dental caries and gingivitis.
The level of each salivary component varies considerably depending on the health status of the individual and the presence of pathogenic and commensal organisms.