Bruxism: Many things could cause this and i would recommend you see your dentist for a good check up and official answer. However, often we clinch our jaws and grind our teeth at night and this can cause dull pain in the teeth.
Answered 7/6/2012
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Pulpitis: A dull, nagging night time tooth ache is usually caused by a tooth pulp that is inflamed. Your dentist should be able to diagnose the problem. If that is indeed the problem then you will need to have a root canal done on the tooth. There could be other causes but it is important to see the dentist to determine the cause.
Answered 10/15/2015
5.7k views
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