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Dental abscess: what is the difference between periapical abscess and periodontal abscess?
An abscess is a localised collection of pus. Dental abscesses can be related to:
• An infection of the pulp of the tooth (periapical abscess)
• An infection of the gum and tissues surrounding the tooth (periodontal abscess)
• A combination of both
Dental abscesses, if uncontrolled, can spread to become facial infections.
A periapical abscess is a result of bacteria from dental plaque invading the pulp of the tooth. Bacteria enter the pulp through a cavity (decay) or tooth fracture. The pulpal infection spreads and reaches the bone surrounding the root tip, forming an abscess.
Meanwhile, periodontal abscess, commonly referred to as a gum abscess, occurs when bacteria in the form of dental plaque accumulates under the gums.
You may experience some or all of the following symptoms when you have an abscess:
• Tenderness of your tooth and surrounding area, especially to touch and on biting
• Intense, throbbing pain that disturbs sleep
• Sensitivity to food and drink that is very hot or very cold
• Fever
• Difficulty in opening your mouth (known as trismus)
• Difficulty in swallowing (known as dysphagia)
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