what causes a tooth abscess
Tooth Abscess Causes. The number one cause of a tooth abscess is poor oral hygiene. Abscess teeth occur when bacteria has the chance to build-up and enter into the dental pulp. The dental pulp is the most important part of each tooth, where the blood vessels, nerves and connective tissues are.
Common Causes of Tooth Abscesses. Common causes of tooth abscesses are severe, untreated tooth decay, tooth injury, such as broken or chipped teeth, and gum diseases like gingivitis or periodontitis. Two other causes are persistent disease and infection following root canal therapy, and infected tooth fillings.