1. Laboratory crafted restoration can be permanently inserted with a glass ionomer, BIS GMA luting composite or Modified BIS GMA's (e.g., Panavia 21). Do not use GIR or Resin reinforced Glass Ionomer Cements with any all-ceramic restoration. Always follow the cement manufacturers instructions.
2. Internal surface of restoration must be sandblasted. Etching the restoration will have no effect.
3. Clean tooth preparation of all residual temporary cement.
4. Seat restoration with finger pressure only. Check and adjust proximal contacts if necessary.
5. If crown fails to seat, use indicating material to determine binding spots (low viscosity silicone material recommended). Place material inside restoration and re-insert restoration with finger pressure. Once material has set, remove restoration. Binding spots are now readily identifiable, easily marked and quickly adjusted with standard diamond tools. Remove silicone residue with acetone or methyl chloride.
6. Cement with low viscosity mix and insure that there is an excess around the entire periphery. Maintain firm pressure until set.

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