Ivoclar Vivadent MultiCore Flow - Manual (Page 2)

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 Flow is light-cured. If no light is used, the application
of a dual-curing adhesive, e.g. 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
another 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 pre-
pared 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.
– 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 cartridge 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.
4. 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 clockwise (Fig. 3).
As MultiCore Flow 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.
Adhesive cementation of glass fibre-reinforced composite root canal
posts and core build-up
Pre-treatment of the root canal and the coronal dentin
– A dry operating field must be ensured. Ideally, a rubber dam should be
used, e.g. OptraDam Plus.
– Disinfect the prepared root canal (e.g. NaOCl, 5%) and dry with paper
points.
– Condition the root canal, the coronal dentin and the enamel surfaces
according to the instructions of the manufacturer of the dentin bonding
agent used (eg or ExciTE F DSC).
– After applying the dentin bonding agent, make sure to remove all excess
material from the root canal using paper points.
– Do not light-cure the bonding agent.
– Place matrix band around the tooth.
Adhesive luting
– Clean and condition post surface according to the manufacturer's
instructions.
– Mix the components of MultiCore Flow and apply the mixed material to
the post.
– It is not recommended to use a lentulo spiral for loading MultiCore Flow
into the root canal, as this will lead to the intermixing of bonding agent
excess and MultiCore Flow. As a result, the working time of MultiCore
Flow will be reduced, so that it may be impossible to push the post into
the desired position within the root canal.
– Seat the post into the root canal and hold it in place using slight pressure.
– Light-cure for 30 seconds from the occlusal aspect
(approx. 1200 mW/cm 2 , e.g. Bluephase, HIGH-mode). The light emission
window should be positioned as close to the post as possible.
Core build-up
– Apply MultiCore Flow as described above (see “Application”) and
light cure.
Additional notes
MultiCore Flow should be at room temperature when processed. At lower
temperatures (e.g. immediately after removal from the refrigerator) it may
be difficult to extrude the material.
Fig. 1 Fig. 3 Fig. 2 Fig. 4