C
ontraindication
The use of Multilink Automix and Multilink Primer is contraindicated
– if a dry working field cannot be established or the stipulated working
t
echnique cannot be applied;
–
if a patient is known to be allergic to any of the ingredients of Multilink
Automix and Multilink Primer A/B.
S
ide effects
S
ystemic side effects are not known to date. In individual cases, allergic
reactions to single components have been reported.
Interactions
P
henolic substances (e.g. eugenol, wintergreen oil) inhibit polymerization.
Consequently, the application of products containing these components, e.g.
mouth rinses and temporary cements, must be avoided.
A
lkaline jet media impair the effect of Multilink Primer.
H
ydrogen peroxide and other disinfectants with an oxidative effect may inter-
act with the initiator system, which in turn can impair the curing process.
Therefore, the automix syringe must not be disinfected with oxidative agents.
T
he syringe can be disinfected, e.g. by wiping with medical alcohol.
Application
1. Removal of the temporary restoration and cleaning of the cavity
R
emove any residue of the temporary luting cement from the cavity or prepa-
r
ation with a polishing brush and an oil and fluoride-free cleaning paste (e.g.
fluoride-free Proxyt). Rinse with water spray. Subsequently, dry with air that is
free of water and oil. Avoid overdrying.
N
ote: Cleaning with alcohol could lead to dehydration of dentin.
2. Try-in of the restoration and drying
Next, check the shade, fit and occlusion of the restoration. Care should be
taken when checking the occlusion of fragile and brittle ceramic objects
b
efore they are permanently cemented, as there is a risk of fracture. If neces-
sary, make adjustments with fine diamonds at medium speed and with slight
pressure using copious amounts of water. Polish ground surfaces. When an
a
dhesive luting protocol with composites is used, safe isolation of the operat-
i
ng field – preferably with a rubber dam, e.g. OptraDam, or alternatively with
cotton rolls and a saliva ejector – is required.
If the dental hard tissue is contaminated with blood or saliva during the try-in
p
rocedure, it must be cleaned again as described in Item 1.
3. Pre-treatment of the restoration
3.1 If a restoration that has been pre-treated in the dental lab comes in con-
tact with blood or saliva during the try-in procedure, the contaminated
b
onding surface of the restoration must be cleaned in the following way:
– After try-in, thoroughly rinse the restoration with water spray and dry
it with oil-free air.
–
Completely coat the bonding surface of the restoration with Ivoclean
using a microbrush or brush.
– Allow Ivoclean to react for 20 seconds. Thoroughly rinse the restora-
tion with water spray and dry it with oil-free air.
–
Use Monobond Plus on restorations made of lithium disilicate glass-
ceramics or zirconium oxide ceramics (e.g. IPS e.max Press/CAD IPS
e.max ZirCAD). Apply Monobond Plus to the cleaned surfaces using a
brush or microbrush. Allow Monobond Plus to react for 60 seconds
and subsequently disperse it with a strong stream of air.
3.2 Restorations that have not been pre-treated by the dental lab should be
rinsed with water spray and dried after the try-in procedure. Thereafter,
the restoration is conditioned as follows:
3.2.1.1 Glass-ceramic restorations (e.g. IPS Empress
®
)
– Etch the restoration with 5% hydrofluoric acid (e.g. IPS
®
Ceramic etch-
ing gel) for 60 seconds or according to the instructions of the manu-
facturer of the restorative material.
– Thoroughly rinse the restoration with water spray and dry it with oil-
free air.
3.2.1.2 Lithium disilicate glass-ceramic restorations (e.g. IPS e.max
®
Press,
IPS e.max CAD)
– Etch the restoration with 5% hydrofluoric acid (e.g. IPS Ceramic etch-
ing gel) for 20 seconds or according to the instructions of the manu-
facturer of the restorative material.
– Throroughly rinse the restoration with water spray and dry it with oil-
free air.
3.2.1.3 Zirconium oxide (e.g. IPS e.max ZirCAD) and aluminium oxide ceramic
restorations
– Sandblast the inner restoration surfaces (sandblasting parameters
according to the instructions of the manufacturer of the restorative
material).
– If necessary, clean the restoration in an ultrasonic unit for about
1 minute.
– Thoroughly rinse the restoration with water spray and dry it with
oil-free air.
– IMPORTANT! In order to create a strong bond, do not clean the
zirconium oxide surfaces with phosphoric acid.
3.2.1.4 Metal or metal-supported restorations
– Sandblast the inner restoration surfaces (sandblasting parameters
according to the instructions of the manufacturer of the restorative
material) until a uniformly mat surface is achieved.
– If necessary, clean the restoration in an ultrasonic unit for about
1 minute.
– Thoroughly rinse the restoration with water spray and dry it with
oil-free air.
– IMPORTANT! In order to create a strong bond, do not clean the metal
surfaces with phosphoric acid.
3.2.1.5 Composite or fibre-reinforced composite restorations
– Sandblast the inner restoration surfaces (sandblasting parameters
according to the instructions of the manufacturer of the restorative
material).
– If necessary, clean the restoration in an ultrasonic unit for about
1 minute.
– Thoroughly rinse the restoration with water spray and dry it with
oil-free air.
3.2.2 Next, apply Monobond Plus with a brush or microbrush to the pre-
treated surfaces. Allow the material to react for 60 seconds. Disperse it
with a strong stream of air.
4. Mixing of Multilink Primer A and Multilink Primer B
The two primer liquids Multilink Primer A and B are mixed in a 1:1 ratio
(e.g. 1 drop Primer A and 1 drop Primer B). The mixed Primer A/B is solely
self-curing and does not need to be protected against light. However, it must
be applied within 10 minutes.
