PAGE
4 – 148 × 210 mm – 44000231488/02 –
BLACK
– 20-095 kn
4
eugenol-free calcium hydroxide material to protect the
pulp from irritation. To avoid bite increases during the
cementing of the later restoration, the pulp protection
should be applied prior to taking an impression for the
final restoration.
•
Seat temporary restorations using a eugenol-free
product (e.g., RelyX
™
Temp
NE
). The use of temporary
cements containing eugenol can inhibit the polymeri-
zation process of Scotchbond Universal Plus and RelyX
Universal during the final cementing.
•
Do not use hydrogen peroxide (H₂O₂) or sodium
bicarbonate (Na
HCO
₃) as the residues can adversely
affect the adhesive strength and setting reaction of
Scotchbond Universal Plus and RelyX Universal.
•
Do not use substances such as desensitizers, disinfect-
ants, astringents, dentin sealants, rinsing solutions
containing
EDTA
, scanning powder, etc., after the final
cleaning. Their residues may have a detrimental effect
on the bonding strength and setting reaction of the
adhesive or resin cement.
Preparation of the Cavity/Tooth Stump
u
Remove loose preparation debris by spraying with
water.
u
Clean the stump or the cavity thoroughly, rinse with
a water spray, and lightly air dry in only 2–3 bursts of
water-free and oil-free air, or use, e.g., cotton pellets to
dry it off. Do not overdry.
− The cavity should be just dry enough that the surface
has a slightly glossy appearance. As with any perma-
nent cement, overdrying can lead to post-operative
sensitivity.
Root Canal Preparation for Post Cementation
u
Remove the root canal filling, leaving at least 4 mm of
root canal filling (guttapercha) apically.
u
Prepare the root canal for the post, rinse with water,
and dry with paper tips.
u
The use of a rubber dam during the cementation of
posts is recommended.
Preparation for Veneers
u
Prepare and clean the tooth as usual for veneers.
u
The tooth must then be etched as described in the sec-
tion “Etching of the Tooth Structure”.
Preparation for Maryland and Inlay/Onlay Bridges
Maryland and inlay/onlay bridges are not recommended
for patients with bruxism or periodontitis.
Abutment teeth must have an adequate enamel surface
for bonding. They should be healthy or only slightly
restored and the periodontal conditions should be good.
It is the sole responsibility of the dentist to ensure proper
selection of indication and technique. The guidelines of
the relevant national professional associations must be
observed for such indications.
u
Prepare retentive elements as necessary.
u
The tooth must then be etched as described in the sec-
tion “Etching of the Tooth Structure”.
u
Use a rubber dam and keep the cavity free of any
contamination during cementation.
Preparation for Chairside CAD/CAM Restorations
Please follow the Instructions for Use of the restoration
material.
Trial Fitting of the Restoration
u
Remove the temporary restoration and thoroughly
clean the tooth structure of any residue from the tem-
porary cement.
u
Make a trial insertion of the final restoration and check
its fit and contact points.
− If a low viscosity silicone is used for the trial fit, the
silicone residue must then be removed completely.
u
Use RelyX Try-In Pastes for the selection of the match-
ing cement shade.
Pre-Treatment of Restorations
Avoid any contamination whatsoever of the surfaces to
be treated during pre-treatment and until final cementa-
tion.
Pre-Treatment of Zirconia, Aluminum Oxide, and Metal
Surfaces
Please follow the Instructions for Use of the restoration
material or abutment. In the absence of specific instruc-
tions, we recommend the following procedure:
u
Sandblast surfaces to be cemented. Use 30 µm to
50 µm aluminum oxide at a pressure of 2 bar (30 psi) to
obtain a rough, matte surface.
u
Clean the blasted surface with alcohol and dry it with
water-free and oil-free air.
u
If sandblasting was done before the trial fitting (e.g., in
the dental laboratory), the surfaces must be cleaned
after the trial fitting (we recommend using sodium
hypochlorite solution, Na
OC
l 5%), rinsed thoroughly
with water, and dried.
u
The surfaces of Zirconia, aluminum oxide, or metal
restorations must not be treated with phosphoric acid.
Use of a primer
RelyX Universal has very strong self-adhesive bond
strength to Zirconia, aluminum oxide, and metal. Option-
ally, Scotchbond Universal Plus Adhesive can be used as
a primer if additional adhesive strength is required. We
recommend using Scotchbond Universal Plus as a primer
for veneers, occlusal veneers (tabletops), inlay/onlay
bridges, and Maryland bridges.
u
Use the disposable applicator to apply Scotchbond
Universal Plus to the entire surface to be luted and rub
it in for 20 sec. During treatment, rewet the disposable
applicator as required.
u
Subsequently direct a gentle stream of air over the
liquid for a minimum of 5 sec until it no longer moves
and the solvent has evaporated completely.
Pre-Treatment of Etchable Glass Ceramic
Restorations
Please follow the Instructions for Use of the restoration
material. In the absence of specific instructions, we
recommend the following procedure:
u
Etch the bonding surface of the glass ceramic
restoration with an
HF
etching gel.
u
Rinse thoroughly with water for 15 seconds and dry
with water-free and oil-free air.
u
Use the disposable applicator to apply Scotchbond
Universal Plus Adhesive to the entire bonding surface
and rub it in for 20 sec. During treatment, rewet the
disposable applicator as required.
u
Subsequently direct a gentle stream of air over the
liquid for a minimum of 5 sec until it no longer moves
and the solvent has evaporated completely.
Alternatively, a suitable silane (e.g., RelyX
™
Ceramic
Primer) can be applied in accordance with the Instruc-
tions for Use.
Pre-Treatment of Composite Restorations
Please follow the Instructions for Use of the restoration
material. In the absence of specific instructions, we
recommend the following procedure:
