Some problems that start in the mouth can affect other parts of the body. An infection in a tooth can spread into the ear, the bones of the jaw and face, or even the bloodstream. Certain diseases, like chicken pox and mononucleosis, cause problems in the mouth.
People who don't eat a healthy, balanced diet may not get enough important vitamins every day. In severe cases, the gums can swell and bleed, or the teeth may get loose or not develop properly.
Brushing and flossing every day, seeing the dentist twice a year, and eating the right foods help keep the mouth and the body well.