Crown lengthening may be required in two situations. One is to expose healthy tooth structure present under the gum line, to allow Dr Rzepka or Dr Parker to restore your tooth with a new crown or filling. The second is to improve a “gummy” smile, otherwise known as an esthetic gum lift. If your teeth are decayed (cavity), fractured at or below the gum line, or have too much gum tissue covering them, there will not be enough tooth structure to hold a new crown or to reach the cavity to clean it out and place a filling. In these situations, a crown lengthening is required to expose the necessary amount of tooth structure. Once the area heals Dr Rzepka or Dr Parker will be able to easily place the crown or filling.