Bonded Cementation of Zirconia or Metal - Duo-Link Universal
The bonded cementation of zirconia or metal indirect restorative procedure utilizes resin cement with appropriate primers to achieve durable adhesion to non-glass substrates like zirconia and metal.
BISCO Recommends
ZirClean is used to support surface decontamination of zirconia or metal substrates prior to bonding. Z-Prime Plus promotes chemical interaction with these non-glass surfaces. Select HV Etch w/BAC supports selective enamel conditioning where indicated. All-Bond Universal is used to support adhesion to tooth structure. Duo-Link Universal provides a dual-cure resin cement indicated for indirect restorations requiring both chemical and light activation.
See below for the Step-by-Step technique.
STEP 1
Sandblast
Sandblast Metal/Zirconia/Indirect Composite: Sandblast internal surface of restoration, unless restoration has been previously sandblasted.
STEP 2
Temporary Restoration
Remove temporary restoration and clean prep with pumice and water slurry. Rinse thoroughly and dry.
STEP 3
Occlusion
Try-in to check occlusion and fit. After try-in, thoroughly rinse the restoration with water spray and dry.
STEP 4
Clean
Metal/Zirconia/Indirect Composite: Outside of the mouth, cover all bonded surfaces of the restoration with a layer of ZirClean®. Allow 20 seconds for the cleaning action of ZirClean to take affect, then thoroughly rinse with water spray and dry.
STEP 5
Apply
Metal/Zirconia/Indirect Composite: Apply one coat of Z-Prime™ Plus to the internal surface of the restoration and air dry for 3-5 seconds.
STEP 6
Enamel
If prep includes enamel, selectively etch enamel with Select HV® Etch w/BAC for 15 seconds, suction then rinse thoroughly.
STEP 7
Adhesive
Universal Primer™ and mix (or All-Bond Universal®) in a mixing well. Apply 2 separate coats, agitating each coat for 10-15 seconds.
STEP 8
Air dry
Gently air dry until there is no visible movement of the adhesive. Then thoroughly air dry with greater air pressure. The surface should appear shiny, otherwise repeat step 7. Light cure for 10 seconds.**
STEP 9
Cementation
Using a dual-cured resin cement (Duo-Link Universal), fill the internal surface of the restoration and/or the prep with the cement. Seat with gentle, passive pressure and remove excess cement while holding restoration in place. Allow the cement to self cure, or light cure each surface of the tooth for 40 seconds.
