A severe toothache can be caused by a variety of things, including a tooth infection. This occurs when bacteria enter the tooth and make their way into the pulp. It’s usually the result of an untreated cavity and requires root canal therapy to get rid of the infection and save the tooth. Though pain is a common part of having a tooth infection, it may sometimes disappear out of nowhere. Continue reading to learn what this means and why you still need to undergo root canal therapy.
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