A root canal is a procedure done to save a tooth from decay. A root canal procedure removes the nerve tissues from your tooth and seals off the hollow chambers. Typically, a root canal takes one appointment. Some patients may experience a little bit of discomfort, but for the most part, a root canal should be a relatively painless process As a final step, a crown is prepared to cap the tooth and restore its natural shape and appearance. A crown is a cap that completely covers a tooth. It’s shaped to look and feel the same as the original tooth and can be made from metal, porcelain fuse to metal composite, or ceramic.