S. sanguinis is a normal inhabitant of the healthy human mouth where it is particularly found in dental plaque, where it modifies the environment to make it less hospitable for other strains of Streptococcus that cause cavities, such as Streptococcus mutans.
S. sanguinis is a normal inhabitant of the human mouth, particularly in dental plaque, where it modifies its surroundings to make it less hospitable for other Streptococcus strains that cause cavities, such as S. mutans.