Our DentalPoint might suggest a root canal treatment for a tooth that is infected or badly damaged. This dental procedure removes the portion of the tooth, or the pulp. Then they will clean and disinfect the area before filling it and sealing it off. The most common reasons the pulp is effected include a tooth that is cracked, a very deep cavity, tooth trauma or a tooth that requires repetitive dental treatments. The term, “root canal” is used for this type of treatment because the cleaning occurs deep in the root of the tooth.