Tooth Decay Develops When Human Saliva and Proteins Aggregate on the Tooth

Multiple Choice

Tooth decay develops when human saliva and proteins aggregate on the tooth and provide a hospitable surface for a range of microbial species to develop into a biofilm.  These organisms ferment carbohydrates and the acid byproducts erode the enamel,forming caries.  Tooth decay is therefore considered to be  ________.

A) a polymicrobial infection
B) a state of well-being
C) nonharmful
D) noninfectious