It usually takes two dental visits to complete the treatment. When a crown is placed over a natural tooth, several steps are involved:
Your dentist prepares the tooth by removing the outer portion, including any decay, so the crown will fit. If additional tooth structure is needed to support the crown, your dentist may build up the core of the tooth.
An impression is made to create an exact model of your tooth. The impression can be made from a mold or by digitally scanning the tooth.