The term 'Dentist's Insertion' refers to a dental procedure in which a CROWN is inserted. A CROWN is a type of dental restoration that covers the entire surface of a tooth, restoring it to its original shape and size. It is typically made of porcelain or metal and is used to protect a damaged tooth from further decay or to improve its appearance. Crowns are often used to replace missing teeth or to restore a tooth after a root canal.