Purpose?
Supporting-tissue response.
← All explanationsPercussion test
What does tenderness when a tooth is tapped mean?
During percussion testing, a tooth is tapped gently and its response compared with other teeth. An unusual response can suggest irritation of its supporting tissues. Alone, it proves neither pulp death nor the need for root canal treatment.
For training & practice ↓
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Choose a view
Test lightly
Examination starts gently. Comparable responses matter, not forceful tapping.
Compare neighbours
A sensitive tooth is considered alongside other teeth and the reported symptoms.
Add relevant tests
Sensibility tests, bite assessment or indicated imaging may provide further information. Interpretation relies on the whole picture.
Read the full explanation
Test lightly
Examination starts gently. Comparable responses matter, not forceful tapping.
Compare neighbours
A sensitive tooth is considered alongside other teeth and the reported symptoms.
Add relevant tests
Sensibility tests, bite assessment or indicated imaging may provide further information. Interpretation relies on the whole picture.
Notes on the teaching images
- Percussion involves gently tapping a tooth. This image is a simplified illustration of the principle.
- The response is compared with adjacent teeth and other findings; tenderness does not automatically mean the pulp has died.
- Percussion assesses a different response from cold or sensibility testing. Diagnosis depends on the overall findings.
At a glance
Comparison?
Other teeth.
Does not prove?
One specific cause by itself.
Knowledge in motion
Explained in 36 seconds.
Three steps. No audio.
Each scene can also be selected manually.
Silent educational film with German on-screen text and simplified teaching images. Not a patient case or a promised treatment outcome. The full English explanation is available as text.
Often confused
Percussion and sensibility
Tapping principally concerns supporting tissues. Cold or electrical tests assess sensory nerve responses.
Quick answers
Does this test whether the tooth nerve is alive?
No. Tapping assesses the response of supporting tissues. Sensibility testing addresses a different question and also has limits.
Does tenderness always mean inflammation at the root tip?
No. Other loading or tissue changes are possible. The test alone does not identify the cause.
Should I repeatedly tap the tooth at home?
No. Repeated or forceful tapping does not improve diagnosis. Describe the triggers and course and arrange assessment instead.
At the practice
For a personal discussion
Editorially suggested question to discuss with Dr Niusha Barahmand Pour:
Which additional findings explain the tenderness to tapping?
Pain on biting or an unusually sensitive tooth can be examined selectively.
Have tooth sensitivity assessedAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- Percussion
- Examination by gentle tapping.
- Apical
- At the root tip.
- Comparison test
- Assessment against reference teeth without evident problems.
Make the distinction
Tapping principally concerns supporting tissues. Cold or electrical tests assess sensory nerve responses.
Sources and context
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.