Persistent Toothache With No Dental Cause
This is one of the most costly presentations in dentistry, and one of the most distressing. A tooth hurts, so it is filled. It still hurts, so it is root-treated. It still hurts, so it is extracted — and it still hurts, in a place where there is no longer a tooth. At that point the pain was never coming from the tooth, and each intervention added tissue injury to an already sensitised system.
Muscles refer pain into teeth in predictable patterns
Trigger points in the chewing muscles refer pain into specific groups of teeth in patterns that are well mapped. The temporalis refers into the upper teeth; parts of the masseter refer into upper and lower molars. The referral is convincing — patients localise it confidently to a particular tooth — but the tooth itself is normal, and pressing on the muscle reproduces the pain while nothing done to the tooth changes it.
Nerve pain is the other major mimic
Painful post-traumatic trigeminal neuropathy — pain arising from an injured nerve, sometimes injured during previous dental treatment — presents as persistent pain in a tooth or an extraction site. It is typically constant, burning or aching rather than sharp, does not respond to local anaesthetic in the way a genuinely inflamed pulp does, and is made worse rather than better by further dental intervention.
What should happen before any more treatment
Before another irreversible procedure: confirm the diagnosis. That means testing whether the tooth's pulp is actually diseased, examining and palpating the chewing muscles to see whether the pain can be reproduced, checking whether the pain has neuropathic features, and reviewing imaging. If nothing objective points at the tooth, treating the tooth is unlikely to help and may make things worse.
Common questions
- I had a root canal and the tooth still hurts. Should it be extracted?
- Not until the source is established. If nothing objective demonstrates a problem with that tooth, extraction frequently leaves the pain behind — and removes the option of ever proving the tooth was innocent.
- How can a muscle make a tooth hurt?
- Through referred pain. Sensory input from muscles and teeth converges in shared pathways, and the brain cannot always determine which structure the signal came from. The pain is entirely real; the location is misleading.
Not sure where to start?
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Book An AppointmentRelated Care
All TMJ Conditions- Locked JawA jaw that catches, or will not open or close.
- Limited OpeningReduced range before pain or a hard stop.
- BruxismClenching and grinding, awake or asleep.
- Clicking & PoppingJoint noise, with or without pain.
- Disc DegenerationWear and displacement inside the joint.
- Jaw TightnessMuscles that never fully release.