An evaluation of a dental abscess begins with a medical history and oral examination.

Physical findings in someone with a dental abscess may include:

• Bleeding gums
• Dental caries
• Dental plaque (calculus)
• Dental tenderness
• Face swelling
• Cervical lymphadenopathy:
• Gland swelling in the neck
• Gum redness
• Gum destruction
• Gum tenderness
• Swollen gums

Tests that may be used to evaluate dental abscess include:

• Dental x-rays
• Needle aspiration may be needed to detect a questionable dental abscess.