Final answer:
A periradicular abscess is an inflammatory reaction to pulpal infection. If the patient is experiencing pain, tenderness to tooth pressure, pus formation, and swelling, this is considered to be a dental abscess.
Step-by-step explanation:
A periradicular abscess is an inflammatory reaction to pulpal infection. If the patient is experiencing pain, tenderness to tooth pressure, pus formation, and swelling, this is considered to be a dental abscess. A dental abscess is caused by a severe infection of the tooth or surrounding tissues.