Usually a root canal procedure is almost painless treatment. That's because dentists apply anesthetics, and the nerve is blocked from sending pain signals to the brain. A root canal is simply removing the nerve, cleaning the canal space, preparing the canal space and finally putting the root canal filling inside the root. This is accomplished by making a small hole through the top of the tooth or crown and using a special material called gutta percha to fill in the space previously occupied by the nerve.
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