Pulp abscess

**Definition:** This is an acute or chronic inflammation of dental pulp, associated with a circumscribed collection of necrotic tissue and pus arising from breakdown of leukocytes and bacteria, sometimes walled off with connective tissue.

**Long definition:** Localized areas of infection, such as an abscess with pus, may develop within the pulp tissue. Abscesses may be found in teeth in which restorations have been placed or in teeth having no detectable lesion. They can produce severe, intermittent pain that may increase when the patient lies down.

**Inclusions:** - Pulpal abscess