Root canal therapy is recommended when a tooth is severely damaged or decayed and there is no other treatment alternative. With today’s modern dental technology, root canal therapies are painless. A root canal is a dental procedure targeted specifically at the pulp of the tooth. When a tooth is severely damaged or decayed, bacteria can get down into the pulp and roots of the tooth, causing infection. Root canal therapy cleans out the tooth canals, removing the pulp, nerves and other tissues, as well as any infection. The hollowed-out area is then thoroughly cleaned, filled with a biocompatible material and sealed. Finally, a crown is placed over the entire tooth to protect the fragile tooth from further damage.