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1. Remove transitional prosthesis and confirm the morphology, shade, and positioning of all-ceramic crown.
2. Complete seating must be confirmed with the use of a radiograph.
3. Apply metal coupler (part # C313) to the abutment.
4. Apply ceramic coupler (part # B204) to the internal aspect of the aluminum oxide sleeve.
5. Apply bonding agent to both the crown and the abutment prior to their being cemented. Use air to minimize the layer of bonding agent. Light cure bonding agent for 10 seconds with the Xenon Plasma Curing System or comparable light unit.
6. Apply a minimal amount of DiamondLink™ resin-cement to the internal aspect of the all-ceramic crown or to the abutment. Insert the crown. DiamondLink™ will take approximately 4-6 minutes to set.
7. Remove any extraneous cement from the margin.
8. Take a radiograph to ensure that the crown is fully seated. Incomplete seating of an all-ceramic crown usually indicates the need for adjustment of the interproximal contacts or the intra-oral orientation of the seated abutment.
Notes: Statistically, a 2.0mm diameter abutment post will move 0.1mm into the well of an implant from its initial insertion to its being definitively seated, and a 3.0mm abutment will move 0.25mm.
Inappropriate positioning of an all-ceramic crown is easily rectified by the removal of the seated abutment from the implant and continuing with the extra-oral cementing technique.
Extra-oral cementation is usually the preferred way of cementing all-ceramic crowns and is essential for the 3.5mm stealth abutment.