The Smithsonian often plays a small role on the small screen, and those references are revealing about popular stereotypes of the Smithsonian. For many TV series, the standard destination for something old and dilapidated is, of course, the Smithsonian.
1 The part of the tooth that is visible in the mouth, above the gum line on lower teeth and below the gum line on upper teeth, is called the clinical crown.  A cemented restoration that partially or completely covers the outside of the clinical crown is referred to as a dental crown or cap.
Make an Appointment Today! A cap is the same thing as a crown. A tooth requires a crown when strength is needed, or when there is too much tooth missing for a filling, the restoration wraps around the outside of the whole tooth. There are several different ways to protect a tooth.