The luting composite and self-etch adhesive (Multilink N Primer) of the Multilink N-System are specially co-ordinated. The self-etch adhesive seals the dentin and ensures marginal integrity and high bond strength on enamel and dentin, which is attained in only ten minutes. It provides the basis for a strong and lasting bond.Indications:-
The universal luting composite is suitable for the placement of indirect restorations made of leucite-reinforced glass-ceramics (IPS Empress), lithium disilicate glass-ceramics (IPS e.max CAD/Press), composite resins (FRC Postec Plus, SR Nexco), oxide ceramics (IPS e.max ZirCAD), metal and metal-ceramics (IPS 99, IPS InLine System). Multilink N is used for the following indications, depending on the material used:
Multilink N The monomer matrix is composed of dimethacrylate and HEMA. The inorganic fillers include barium glass, ytterbium trifluoride and spheroid mixed oxide. The particle size is 0.25–3.0 µm. The mean particle size measures 0.9 µm. The total volume of inorganic fillers is approximately 40 %.
1. Removal of the temporary restoration and cleaning of the cavity
Note: Cleaning with alcohol could lead to dehydration of dentin.
2. Try-in of the restoration and drying
3. Pre-treatment of the restoration
4. Mixing of Multilink N Primer A and Multilink N Primer B
5. Application of the mixed Multilink N Primer A/B to the enamel and the dentin
Note: Previous conditioning of enamel with phosphoric acid is required for Maryland bridges.
6. Application of Multilink N to the restoration
For each application, place a new automix tip on the syringe. Dispense Multilink N from the automix syringe and apply the desired amount onto the restoration. As the luting material will cure in the used mixing tip, it serves as a seal for the remaining contents of the syringe until needed again (replace with a new tip before the next use).
Note: Multilink N should be used quickly after it has been dispensed and the restoration should be placed rapidly! Multilink N is applied directly to the inner surface of the restoration. The application of Multilink N directly to the preparation or the cavity, which has been pre-treated with Multilink N Primer, is not indicated as this would lead to considerable acceleration of the curing process and thus may compromise the fit of the restoration
7. Placement of the restoration and removal of excess cement
Seat the restoration in place and secure it. Remove excess material immediately with a microbrush/brush/foam pellet/dental floss or scaler. Remove excess rapidly in difficult-to-reach areas (proximal areas, gingival margins, pontics). Due to the reaction between Multilink N and Multilink N Primer A/B, a high bond strength and a high degree of cure is achieved within a few minutes of seating the restoration.
Light-curing of all excess cement and subsequent removal: Seat the restoration in place and secure it. Light-cure excess cement in quarter segments (mesio-oral, disto-oral, mesio-buccal, disto-buccal) using a polymerization light at a distance of max. 10 mm.
Light-curing of all excess cement and subsequent removal: Seat the restoration in place and secure it. Successively light-cure excess cement on all the abutments in quarter segments (mesio-oral, disto-oral, mesio-buccal,disto-buccal) using a polymerization light at a distance of max. 10 mm.
Thereafter, excess cement is easy to remove with a scaler. Excess must be removed rapidly in difficult-to-reach areas (proximal areas, gingival margins, pontics). Subsequently, light-cure all the margins again for 20 s (approx. 1,000 mW/cm2, e.g. Bluephase in HIGH POWER mode or Bluephase Style).
Note: Like all composites, Multilink N is subject to oxygen inhibition: In other words, the surface layer (approx. 100 µm) does not polymerize during the curing process, as it comes in contact with atmospheric oxygen. In order to avoid this, we recommend covering the restoration margins with glycerine gel/air block (e.g. Liquid Strip) immediately after the removal of excess. After complete polymerization, the glycerine gel/air block is rinsed off with water.
8. Finishing of the restoration