Patent ID: 9168114
Filing Date: 2015-10-27
Classification: A61C,Y10T

Abstract:
1. A method of making a dental crown or bridge restoration having occlusal, mesial side, buccal, distal side, and lingual walls, with the buccal wall configured to be adjacent a patient's cheek, and the lingual wall configured to be adjacent a patient's tongue, the occlusal wall configured to face an opposing tooth, the mesial and the distal side walls each configured to face a different adjacent tooth, and the walls being connected to define a concavity therein configured to receive and match a prepared tooth or an implant abutment, the method comprising, in sequence, the steps of: a) receiving a margin line information of the prepared tooth or the implant abutment; followed by b) forming a precursor crown or bridge restoration outside of a patient's mouth with a first restorative material, comprising creating a restoration margin line in the first restorative material corresponding with the margin line information of the prepared tooth or the implant abutment, creating a buccal contour on the buccal wall of the precursor crown substantially the same as or proportional to a desired final buccal contour on a final crown or bridge restoration, forming the concavity in the first restorative material outside of the patient's mouth to match the prepared tooth or the implant abutment, and creating an open space with an open space perimeter on or around at least one of the mesial side wall or the distal side wall with the open space separated from the concavity by the first restorative material; followed by c) filling and curing a second material, different from the first restorative material, inside the open space of the precursor crown or bridge restoration while outside the patient's mouth, defining the final crown or bridge restoration, and with the precursor crown or bridge restoration having a strength substantially equivalent to the final crown or bridge restoration, and with the buccal contour on the buccal wall being substantially the same as the buccal contour on the final crown or bridge restoration, prior to filling and curing the second material.