Ivoclar Vivadent Variolink Veneer - Manual (Page 2)

Working time
The Variolink Veneer pastes are to be used exclusively in light-curing
proce-dures.
Composition
Variolink Veneer is composed of dimethacrylates, silicon dioxide and
ytterbium trifluoride. Additional contents are catalysts, stabilizers and
pigments.
– The total content of inorganic filler is approx. 40 vol%.
– Filler particle sizes range from 40 nm to 300 nm.
Indication
Adhesive luting of ceramic and composite restorations (fabricated at
the chair-side or in the laboratory) with a low layer thickness
(< 2.0 mm) that enable the use of a purely light-curing technique due
to their high translucency:
– Preferably veneers, inlays and onlays made of e.g. IPS Empress
® ,
IPS Empress ® 2, IPS e.max ® Ceram
Contraindication
The application of Variolink Veneer is contraindicated:
– If a dry working field cannot be established, or the stipulated
working procedures cannot be applied.
– If the patient is known to be allergic to any of the ingredients of
Variolink Veneer.
– For opaque restorations made of e.g. metal
Side effects
Systemic side effects are not known to date. In rare cases, allergic
reactions to individual components have been reported. The use of
the product should not be continued in these cases.
Interactions
Phenolic substances (e.g. eugenol) inhibit polymerization.
Consequently, materials containing this type of ingredient (e.g.
eugenol-containing provisional luting materials) should not be used
in conjunction with Variolink Veneer.
Application (step by step)
Please also refer to the Instruction for Use of the products mentioned
for more detailed information.
Try-in and adhesive luting of tooth-coloured restorations
1. Removal of the temporary restoration
After removing the provisional restoration, clean cavity or the
prepared tooth using a polishing brush and non-fluoride, oil-free
paste. Make sure to remove all temporary cement residues. Following
this, rinse with water spray.
Note:
Use only eugenol-free temporary luting materials, as eugenol may
inhibit the polymerization of Variolink Veneer and other luting
composites.
2. Try-in and shade adjustment
For optimum aesthetic results, evaluate the effect of Variolink Veneer
on the shade of the restoration with the help of the Variolink Veneer
Try-In pastes at this stage. It is not advisable to verify occlusion at this
point, as this might lead to fracture. Subsequently, adjust proximal
contacts and re-polish using ceramic or composite polishing
instruments.
3. Isolation
In conjunction with the adhesive luting technique, the use of rubber
dam isolation is recommended.
4. Cleansing of the restoration
Use water spray to wash the Variolink Veneer Try-In paste off the
restoration and dry it with moisture- and oil-free air. Clean the
surface of the restoration by etching it with phosphoric acid for
15 seconds. Rinse off and dry.
5. Pre-treatment of the restoration
– Make sure that the restoration was pre-treated in the laboratory
according to the instructions of the manufacturer (e.g. check
whether the ceramic material was etched with hydrofluoric acid).
– Apply silane to the inner surfaces of the restoration (e.g.
Monobond Plus) and leave to react for 60 seconds. Subsequently,
dry the surface with oil-/moisture-free air. Do not rinse.
6. Pre-treatment of the cavity
– Apply Total Etch (37% phosphoric acid) to the prepared enamel
first, and then to the dentin surfaces. Allow phosphoric acid to
react for 15–30 seconds on the enamel, and a maximum
15 seconds on the dentin.
Using a matrix band in the proximal regions prevents accidental
etching of the adjacent teeth and facilitates the subsequent
removal of excess Variolink Veneer. Secure the matrix bands in
place using suitable interdental wedges.
– Then thoroughly rinse with copious amounts of water for at least
5 seconds. Remove excess water, leaving the dentin surface
slightly, but visibly, moist for wet bonding. This can be done with
either:
a) compressed air, or
b) a high-volume evacuation tip held directly over the prepared
surface for 1–2 seconds, or
c) a dry brush, foam pellet or other lint-free absorbent material
Do not overdry dentin!