what are bacteria of the gums
Other bacteria actually protect our teeth and gums. There are some bacteria, however, that we'd rather do without, since they cause tooth decay and gum disease. The Two Most Common Harmful Bacteria. Streptococcus mutans is the bacteria you've probably heard the most about. It lives in your mouth and feeds on the sugars and starches that you eat.
However, mouth bacteria are responsible for some of the most common bacterial diseases in humans. And they are gum disease and tooth decay (caries). slide 2 of 4