A dentist will perform a root canal to eliminate a dental infection at its source, relieve the miserable pain of a toothache, and save the treated tooth from extraction. While a single root canal is usually enough, some patients may need to receive another one in the same tooth if it fails to heal properly or if new infections develop. Here’s what you should know about root canal retreatment, including what makes it necessary, how your dentist will perform it, and a few tips for preventing the need for it.
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