Why does my tooth hurt more at night?
Two things happen when you lie down. Blood pressure to the head increases, which raises pressure inside an already-inflamed pulp chamber. And the daytime distractions that mute the pain — work, conversation, food, exercise — disappear. The result is pain that felt manageable during the day and now feels much worse at 2 AM.
Night-worsening tooth pain is a classic sign of irreversible pulpitis: the pulp tissue inside the tooth is inflamed beyond recovery. The tooth will not heal on its own. Root canal therapy is the conservative way to resolve it.
Immediate relief — what to do right now
- 1Elevate your head with an extra pillow. This reduces blood pressure to the painful tooth.
- 2Apply a cold compress to the cheek over the painful side, 10 minutes on, 10 off.
- 3Take ibuprofen 400–600 mg with food. Alternate with acetaminophen 500 mg every 4 hours if needed (do not exceed daily-maximum doses).
- 4Avoid temperature extremes — no hot drinks, no ice on the tooth itself.
- 5Avoid chewing on the painful side.
- 6Try a warm salt-water rinse (1/2 tsp salt in 8 oz warm water) — soothing for gum-side pain.
When to call us
Severe swelling of the face or jaw, fever, or trouble swallowing is a same-day emergency — call (480) 943-1900 immediately. Pain alone, even severe pain, warrants an appointment within a day or two; we hold time daily for urgent endodontic visits.
Why ER visits rarely help with tooth pain
Hospital ERs can prescribe antibiotics and pain medication but rarely have a dentist or endodontist on call. They cannot do the diagnosis or the treatment. If you can wait until morning to see an endodontist, that is almost always the better path. The exceptions are facial swelling that affects breathing, fever, or trauma — those are real ER situations.
Related: Persistent tooth pain · Signs you need a root canal · Emergency endodontist