When a tooth has a large enough cavity that causes the nerve of the tooth to hurt or die, a root canal is required to save the tooth from being extracted. Root canals remove the nerve and the canal is then filled with a material to seal the tooth from bacteria. With advances in dental anesthetics and instruments used during root canals, these are no longer the long, scary procedures they were in the past. Root canals play a very important role in helping you to save your teeth for a long time.
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