Not testing control teeth (false positives in sensibility testing)
What it is
Performing pulp sensibility testing (cold/heat/EPT) on the suspected tooth without testing control teeth first (adjacent and/or contralateral), then over-interpreting a response as "abnormal" when it may actually be normal for that patient. AAE's diagnostic guidance explicitly recommends using control teeth to compare responses and improve interpretation accuracy.
Why it happens
• Rushing (pain emergency) → testing only the "painful" tooth • Misunderstanding what sensibility tests do: they test sensory response, not pulp blood supply; interpretation needs comparison (consensus terminology and endo diagnostic teaching emphasize that test results must be interpreted in context) • Patient factors that alter responses: - Anxiety / hypervigilance - Recent analgesics - Heavy restorations, crowns, calcification, trauma history - Poor isolation (cold stimulus spreads to adjacent teeth/gingiva)
The full clinical mistake entry includes
- How to avoid it — the prevention protocol
- The clinical tip experienced clinicians use
- The documented reference behind the mistake
More clinical mistakes
Dentalverse is an educational resource for dental students and dentists. This page is a study reference — it is not medical advice and does not replace clinical judgment. Always follow your institution's protocols and your supervisor's guidance.