Ivoclar Vivadent MultiCore v.2 - Manual (Page 2)

Contraindications
The use of MultiCore is contraindicated
– if the operating field cannot be kept sufficiently dry, or if the stipulated
application technique cannot be used.
– if the patient is known to be allergic to any of the ingredients in
MultiCore.
Side effects
– In individual cases, components of MultiCore may lead to sensitization.
MultiCore should not be used in such cases.
– In vital teeth, dentinal areas close to the pulp should be covered with a
suitable liner.
Interactions
Substances containing eugenol/oil of cloves may inhibit the polymerization
of composite materials.
Consequently, application of such materials together with MultiCore must
be avoided.
Application
Apply dentin bonding agent to the clean dentin surfaces. Ivoclar Vivadent
recommends using either AdheSE
® , Syntac ® or ExciTE ® F as the bonding
agent when MultiCore is light-cured. If no light is used, the application of a
dual-curing adhesive, e.g. AdheSE DC or ExciTE F DSC, is recommended.
These Instructions describe the procedure with AdheSE. Please refer to the
instructions of the respective bonding agents for further information.
– A dry operating field must be ensured. Ideally, a rubber dam should be
used, e.g. OptraDam Plus.
– Apply an adequate amount of AdheSE Primer with a brush. All the dentin
surfaces should be adequately wetted. If necessary, fresh primer should
be applied. Once the dentin surfaces have been thoroughly coated with
the primer, the product must be brushed into the entire surface for ano-
ther 15 s. The total reaction time should not be shorter than 30 s.
– Disperse excess amounts of AdheSE Primer with a strong stream of air
until the mobile liquid film has disappeared.
– Apply AdheSE Bond.
– Disperse AdheSE Bond with a very weak stream of air. Avoid pooling!
Alternatively, remove excess bonding agent with a dry/fresh brush.
Note
The bonding agent does not contain a solvent that has to be evaporated.
Care should be taken not to blow away the bonding agent. All the prepa-
red surfaces must be adequately coated with the bonding agent.
– Polymerize AdheSE Bond for 10 s (approx. 650 mW/cm 2 , e.g. bluephase,
LOW-mode). The light emission window should be held as closely to the
material as possible.
– Contamination by blood or saliva must be avoided after the application
of the bonding agent.
Application of MultiCore Flow
– Insertion of the cartridge (when using the automix syringe, please pro-
ceed to point 3)
1. Press the black release lever located below the plunger on the back
of the dispenser and pull plunger back as far as possible (Fig 1).
2. Lift the cartrige lock and insert the cartridge with the “V" shape on
the cartridge base turned downwards. Lower the cartridge lock (Fig 2).
3. Remove the sealing cap by turning it 1/4 turn counter clockwise.
3. It is very important to clear or bleed the cartridge or syringe prior
to applying the mixing tip.
Gently press the dispenser lever until both components (base and
catalyst) begin to flow out evenly onto a mixing pad.
5. For each application, place a new mixing tip on the cartridge/syringe.
Push the tip completely down until the notch of the mixing tip is
aligned with the notch on the housing of the cartridge/syringe.
Secure the mixing tip in place by gripping the coloured base, and not
the mixing tip, and by turning it 1/4 turn clock-wise (Fig. 3).
As MultiCore will cure in the used mixing tip, it may serve as a seal
for the contents of the cartridge/syringe until needed once again
(replace with a new tip just before the next use).
6. If necessary apply an intra-oral tip to the mixing tip (Fig 4). Larger
amounts of material can be extruded if the intra-oral tip is shortened
by approx. 1 mm.
– Place matrix band around the prepared tooth.
– Apply MultiCore Flow directly to the cavity with the intra-oral tip in place.
– If no light is used, wait for 4–5 minutes until the chemical curing process
is complete before removing the matrix. If the material is light-cured, it
may be ground immediately after completing the curing cycle.
– Optionally, MultiCore Flow may be cured for approx 20 s from the occlu-
sal (approx. 1200 mW/cm 2 , e.g. bluephase, HIGH-mode). The distance
between the light emission window and the occlusal surface must be kept
at a minimum. Remove the matrix band and cure other aspects for 20 s.
– Use rotary instruments to complete the crown preparation.
Application of MultiCore HB
– MultiCore HB is handmixed at a ratio of 1:1 on the mixing pad included.
Preferably, the enclosed plastic spatula should be used for this purpose.
(If base and catalyst paste are mixed using a metal spatula, grey shading
of the material may result due to contamination with abraded metal par-
ticles. Cautious kneading may reduce the discoloration).
– Base and catalyst should be adequately mixed. Too vigorous spatulation
will lead to air inclusion, which may inhibit and retard the curing process.
At the same time, the paste will become more sticky and thus be more
difficult to mould and shape. This will not negatively affect the mechani-
cal strength of the core build-up, however a longer waiting time should
Fig. 1 Fig. 3 Fig. 2 Fig. 4