Yes, a tooth can cause ear pain, because the teeth, jaw and ear share nerve pathways, so pain from a back tooth or the jaw joint is often felt in or around the ear. This is called referred pain. It explains why some people visit their doctor for an earache, get told the ear is healthy, and later find the real source is a decayed molar or a strained jaw joint. Understanding the link helps you work out who to see.
Key takeaways
- The ear and the back teeth share branches of the same major facial nerve, so pain can cross over.
- Common dental causes of ear pain include decay, an abscess, an impacted wisdom tooth and grinding.
- Jaw joint problems near the ear are one of the most common reasons for ear-region pain.
- A true ear infection usually brings hearing changes, discharge or a blocked feeling, which dental pain does not.
- If your ears are clear but the ache continues, a dental check is a sensible next step.
Why a tooth can be felt in the ear
The back teeth, the jaw joint and the ear are all supplied by branches of the trigeminal nerve, the main sensory nerve of the face. When several structures feed into shared nerve pathways, the brain can struggle to pinpoint exactly where a signal is coming from. Pain from a lower molar can therefore be felt higher up, near or inside the ear on the same side. The jaw joint sits directly in front of the ear canal, so problems there are especially easy to mistake for an ear complaint.
Dental problems that commonly refer pain to the ear
Several dental issues can show up as ear pain. A deep cavity or an abscess in a back tooth can radiate towards the ear. An impacted or infected wisdom tooth is a frequent culprit, since it sits close to the jaw angle and ear, as covered in our guide to wisdom tooth gum infection. Night-time clenching and grinding tire the jaw muscles that wrap around the ear, leaving a dull ache. Even a cracked tooth can send sharp twinges towards the ear when you bite.
Jaw joint pain versus ear pain
The jaw joint, or temporomandibular joint, sits just in front of each ear. When it is strained or inflamed, the pain is felt right at the ear and is easy to misread. Clues that point to the jaw rather than the ear include a clicking or popping sound when you open wide, tenderness in front of the ear, tightness in the jaw, and pain that worsens with chewing or yawning. Our article on jaw joint pain explains this in more detail.
| Sign | Points to the ear | Points to a tooth or jaw |
|---|---|---|
| Discharge from the ear | Yes | No |
| Muffled hearing or blocked feeling | Yes | No |
| Pain on biting or chewing | Not usually | Yes |
| Sensitive or tender tooth | No | Yes |
| Clicking jaw or tender joint | No | Yes |
How to tell the difference and who to see
A useful rule of thumb is that a true ear infection usually comes with hearing changes, a blocked or full feeling, or discharge, and often a fever, especially in children. Dental and jaw pain tends to be linked to a particular tooth, to chewing, or to jaw movement, without those ear symptoms. If your doctor has checked your ears and found them healthy but the ache persists, it is worth seeing a dentist. If there is clear ear discharge or hearing loss, start with your doctor. When the picture is mixed, either professional can help point you in the right direction.
Frequently asked questions
Can a wisdom tooth cause ear pain?
Yes. An impacted or infected wisdom tooth sits near the jaw angle and ear, so it commonly refers pain towards the ear on the same side, sometimes with jaw stiffness.
How do I know if my ear pain is from my teeth?
Dental ear pain is usually one-sided, linked to a tender tooth or to chewing, and comes without hearing loss or discharge. If your ear itself checks out healthy, a tooth or the jaw joint is a likely source.
Can grinding my teeth cause earache?
It can. Grinding and clenching overwork the jaw muscles around the ear, which can leave a dull ache near the ear along with jaw tightness and morning soreness.
Should I see a doctor or a dentist for ear pain?
If there is discharge, hearing loss or fever, see your doctor. If your ears are clear but the ache continues, or a tooth is tender, see your dentist. Referred dental pain is easily missed.
Will treating the tooth stop the ear pain?
If a dental problem is the source, treating it usually resolves the referred ear pain. A dentist can identify the tooth or jaw cause and treat it directly.
The bottom line
Ear pain is not always an ear problem. Because the teeth, jaw and ear share nerve pathways, a decayed molar, an infected wisdom tooth or a strained jaw joint can all be felt as an earache. If your ears are healthy but the pain lingers, a dental check can find the real cause. The team at Lumi Dental can examine your teeth and jaw and help track down the source. See our current offers or book with a general dentist in Melrose Park. This article is general information and not a substitute for personal dental or medical advice.
