After grinding and shoulder preparation, the dentist takes precise impressions of the damaged teeth or of those surrounding edentulous areas. If the crown of the damaged tooth cannot be saved, a root canal pivot is placed in the remaining dental root, to which the zirconium-oxide framework can be attached later.
After grinding, a temporary crown is placed on the abutment. The temporary crown is designed to both eliminate aesthetic problems and protect the ground tooth.
Based on the impression, the dental laboratory uses CAD-CAM technology to create a zirconium-oxide framework for the prosthetic restoration, on which a layer of porcelain is fired to create a tooth that is aesthetically pleasing and similar in shape and colour to the original tooth.
The finished framework must always be “tried in” before the final adjustment and attachment of the prosthetic restoration. During the trial fit, the dentist checks that the framework fits precisely the teeth bordering the prosthetic restoration and that the edge of the framework is sealed well at the level of the gingiva.
After any adjustments have been made, the zirconium-oxide framework and porcelain crown are finally attached.