This treatment is when the pulp of the tooth is completely removed and then the tooth is sealed with a crown. The pulp contains the nerve of your tooth and it extends from the crown of your tooth all the way through to the tip of the tooth root.
After the pulp and any present cavity-causing bacteria has been removed, the tooth is filled with a sealant and a crown is placed over the tooth to protect it from bacteria and to provide support to the weakened tooth.
Root canal treatment is more costly than many other procedures because of the skill required to do it well and the amount of time it takes to complete. Many times it takes two or three different appointments to complete.