There are many ways in which your oral health has an impact on your overall general health. There are naturally occurring bacteria in the mouth. Some of those bacteria, including strep and staph, are harmful, while other bacteria are essential for the balance of intestinal flora. The healthier your mouth is, the less likely it is the harmful bacteria will travel to other parts of your body to infect it and make you sick. There is much more to good dental hygiene than brushing and flossing.