What causes a dental abscess?
A dental abscess may be caused by different bacteria (germs). The bacteria usually enter when the tooth enamel (outer cover of the tooth) is broken by tooth decay. Decay usually occurs with poor mouth care or hygiene. Bacteria may also enter after an injury to the tooth, such as when a tooth is broken or chipped. Procedures that are done on the tooth or gums may also cause a dental abscess. Food particles that are stuck between the teeth for a long time may also lead to an abscess. The following conditions may increase your risk of having a dental abscess: Diseases, such as diabetes, gastroesophageal reflux disease (GERD), or diseases that weaken the immune system. The immune system is the part of the body that fights infection. Dry mouth, decreased saliva (spit), smoking, or drinking alcohol. Alcohol may be found in beer, wine, liquor (such as vodka or whiskey), and other adult drinks. Having radiation therapy of the head and neck. Taking certain medicines, such as steroids or medicin
