Dental fillings are used to repair damage to the structure of a tooth or teeth. Structural damage can be caused as a result of tooth decay, wear or trauma. After the removal of a problematic tooth structure, the tooth is restored with one of several filling materials: gold, amalgam, composite resin (white filling material) or porcelain. Each filling material has its advantages and disadvantages. Your dentist will work with you to determine which material is appropriate for you.
Root canal therapy removes infected pulp tissue within the root chamber of the tooth. The hollowed-out tooth is filled with an antibacterial filling, and the tooth is "capped" with a crown for protection. Endodontists specialize in performing root canal therapy, though general dentists also often perform the restorative procedure.