Once a tooth has been extracted, bacteria will still be alive in the mouth, even more so with those who have bad oral hygiene. Infections are very common following extractions. Depending on how bad the tooth was that the dentist removed, he may prescribe you some antibiotics to take that will greatly reduce your risk of getting an infection. In some cases though, even antibiotics can’t prevent an infection. If you go to the dentist before the extraction experienced swelling…