Can a tooth infection affect any part of your body like heart or brain?

Absolutely: Dental disease can be the primary inciting factor in the subsequent development of brain abscesses, endocarditis and a wide variety of other clinical problems. This is seldom true of just cavities, but far more likely with periodontal diseases, periapical dental abscesses or osteomyelitis of the maxilla, mandible or other areas of the head and neck.

Yes: Dental infections can spread into adjacent areas...We call these 'space infections' when they invade a nearby 'space'. They can also be spread by the blood stream to other more distant areas, such as the lining of the heart, the cavernous areas of the brain, joints, etc. These can be very serious and require early diagnosis and treatment.

Yes.: A tooth infection will invade the jaw bone, which is called an abcess, and from there it can enter the soft tissues and travel to the heart or brain and be life-threatening.