To get a crown the tooth must be reduced in size so that the crown will fit over and seal it properly. Building up the internal core of the tooth may be required if there is not enough structure remaining to support a dental crown. An impression is taken to provide an exact mold for the new crown. Using this impression, our dental lab makes your crown, in the material we specify. A temporary crown will be placed to cover the prepared tooth while the permanent crown is being made. When the permanent crown is ready, generally 2-4 weeks, the temporary crown is removed, and the new crown is cemented over your prepared tooth.