Dental Insurance Health Care News, Saliva protects teeth against cavities more than we thought
Mucus – part of the 0.5% of saliva that is not water – contains salivary mucins, compounds that actively protect teeth from damage by the cavity-causing bacterium Streptococcus mutans, according to a new study.
Previously it was thought that salivary mucins – large glycoproteins – did little more than keep mucus in saliva slippery and elastic, contributing to its gel-like properties. But now it seems they play an active role in defending against pathogens and keeping the human microbiome healthy.