Why do my teeth randomly hurt
Teeth that hurt intermittently may have decay, a cracked tooth, irritated pulp, gum disease, exposed dentin, bite overload, or referred pain.
The short answer
Teeth that hurt intermittently may have decay, a cracked tooth, irritated pulp, gum disease, exposed dentin, bite overload, or referred pain. Tooth pain can start when pressure, temperature, sweet foods, or inflammation activates nerves in the pulp or tissues around the root. Pain that stops quickly differs from pain that lingers, occurs spontaneously, or worsens when biting.

What details can help explain intermittent tooth pain?
Record which tooth seems involved, what triggers the pain, how long it lasts, and whether it wakes you. Avoid extreme temperatures on that side, keep the area clean, and use only pain medicine suitable for you as directed on its label.
What should you do about repeated or lingering pain?
Book an examination for repeated, spontaneous, lingering, or bite-related pain. Urgent care is needed with swelling, fever, pus, difficulty opening the mouth, or trouble swallowing or breathing.
When should intermittent pain be assessed by a dentist?
Does the pain point to the pulp, a crack, the gum, or the bite? Ask whether testing with cold, tapping, bite pressure, and X-rays can identify the source.
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Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.
