What causes a tooth abscess?

What causes a tooth abscess?

Anything that creates an opening for bacteria to get into the tooth or surrounding tissues can lead to a tooth infection. Causes include:

• Severe tooth decay: A cavity, or tooth decay, is the destruction of the hard surfaces of the tooth. This occurs when bacteria break down sugars in food and drink, creating acid that attacks enamel.
• Broken, chipped or cracked teeth: Bacteria can seep into any opening in a tooth and spread to the pulp.
• Gum disease (periodontitis): Gum disease is an infection and inflammation of the tissues around the teeth. As gum disease progresses, the bacteria gain access to deeper tissues.
• Injury to the tooth: Trauma to a tooth can injure the inner pulp even if there’s no visible crack. The injury makes it susceptible to infection.