(1) Discoloration of a single tooth is usually because the tooth is non-vital, heavily filled, or carious .

(2) Regular dental examinations with early treatment of carious lesions can substantially reduce the risk of serious complications.

(3) Treatment includes an oral examination, cleaning, topical fluoride application, restoration of carious teeth, pulp therapy, and, when necessary, tooth extraction.

(4) Practitioners were skilled in restoring carious teeth with gold and replacing missing teeth with false ones.

(5) Treatment involves removal of the carious tissue and placement of a dental restoration, or filling.