Dentaltown November 2017 - 36

show your work
case study

Fig. 10. Restorations immediately post-cement
cleanup

Fig. 9. Crowns seated post-one-second light cure, easy cement removal

Products used
* 3M Lava Esthetic Fluorescent
Full-Contour Zirconia Disc
* 3M Retraction Capsule
* True Definition Scanner, 3M
* RelyX Unicem 2 Self-Adhesive
Resin Cement, 3M

36

NOVEMBER 2017 // dentaltown.com

Fig. 11. Restorations one week postoperatively

Once we received the restorations from
Simple cementation
the lab, we removed the temporaries, cleaned
Lava Esthetic zirconia requires a resin
up the residual cement, created a proper field
cement for aesthetic purposes because of its
for placement, and packed a little cord around
inherent translucence. Self-adhesive resin
the teeth to prevent any
cements are ideal due to
fluid contamination to
aesthetic potential and
the adhesive interface at
simplicity of application.
the margins of the crown
3M's RelyX Unicem 2
(Fig. 6, p. 34).
is a self-etching adhesive
We c le a ne d t he
resin cement that requires
teeth, verified the restono other formulations or
ration fit, and abraded
chemical applications
the restorations with
to the teeth, including
aluminum oxide at twoetchants, disinfectants or
desensitizers. For cement
bar pressure to remove
c ont a m i n a nt s l i k e
usage, the teeth can be
phosphates present in
cleansed with f lour of
saliva, which interfere
pumice, dried and left in
with the self-adhesive
a moist condition. This
cement, and to energize
will provide the optimal
the zirconia surface
conditions for maximum
to optimize adhesion
adhesion with excellent
Fig. 12. Radiograph one-week postop
with our resin-based,
margin sealing (Fig. 8,
self-adhesive cement.
p. 34). It is not necessary
to use a primer (MDP) when using Unicem
If the lab has presandblasted, try-in your
2 with zirconia as its proprietary chemistry
restorations, and clean with a sodium
hypochlorite rinse followed by a water
yields sufficient bond strengths to zirconia
rinse prior to final placement (Fig. 7, p. 34).
in most cases.


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Table of Contents for the Digital Edition of Dentaltown November 2017

Dentaltown November 2017 - Intro
Dentaltown November 2017 - Cover1
Dentaltown November 2017 - Cover2
Dentaltown November 2017 - 1
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