If an endodontically treated tooth is still painful and the endodontist is unsure of the cause, which test can you use to decrease/assess the pain?

If an endodontically treated tooth is still painful and the endodontist is unsure of the cause, which test can you use to decrease/assess the pain?

• A. Extract
• B. RCT
• C. Splint
• D. Topical anesthetic

Answer: (D)

Applying a topical anesthetic to the painful tooth area serves as a quick, reversible way to test whether the tooth itself is the source of pain. If numbing the surface reduces the pain, it suggests the pain is odontogenic—likely related to dentin hypersensitivity or residual nerve activity in the tooth—and guides you toward targeted dental management. If there’s little or no change in pain, the source is more likely non-odontogenic or referred (such as occlusal/TMJ issues, sinus problems, or neuropathic pain), shifting the diagnostic focus away from the tooth. This test is fast, noninvasive, and helps decide next steps before considering more invasive procedures.

Applying a topical anesthetic to the painful tooth area serves as a quick, reversible way to test whether the tooth itself is the source of pain. If numbing the surface reduces the pain, it suggests the pain is odontogenic—likely related to dentin hypersensitivity or residual nerve activity in the tooth—and guides you toward targeted dental management. If there’s little or no change in pain, the source is more likely non-odontogenic or referred (such as occlusal/TMJ issues, sinus problems, or neuropathic pain), shifting the diagnostic focus away from the tooth. This test is fast, noninvasive, and helps decide next steps before considering more invasive procedures.