Percussion testing is used to assess tenderness indicating periapical inflammation.

Percussion testing is used to assess tenderness indicating periapical inflammation.

• A. Tenderness indicating periapical inflammation
• B. Pulp vitality
• C. Reversible pulpitis
• D. Radiographic density

Answer: (A)

Percussion testing assesses tenderness in the periodontal ligament and surrounding periapical tissues. When there is inflammation in the periapical region, tapping the tooth provokes pain because inflammatory mediators sensitize the ligament fibers. This makes percussion a useful sign of periapical pathology, such as symptomatic apical periodontitis, rather than a test of the pulp itself. This test does not measure pulp vitality, which is evaluated with heat/cold or electric pulp tests to see if the pulp tissue can respond. Reversible pulpitis concerns pulpal inflammation, which is a pulpal issue rather than a periapical one. Radiographic density is an imaging finding, not a response to tapping.

Percussion testing assesses tenderness in the periodontal ligament and surrounding periapical tissues. When there is inflammation in the periapical region, tapping the tooth provokes pain because inflammatory mediators sensitize the ligament fibers. This makes percussion a useful sign of periapical pathology, such as symptomatic apical periodontitis, rather than a test of the pulp itself.

This test does not measure pulp vitality, which is evaluated with heat/cold or electric pulp tests to see if the pulp tissue can respond. Reversible pulpitis concerns pulpal inflammation, which is a pulpal issue rather than a periapical one. Radiographic density is an imaging finding, not a response to tapping.