Page 48 - CEREC Q2 | 2014

46 | CERECDOCTORS.COM | QUARTER 2 | 2014
vita enamic is a very
versatile material that is a
solid choice for both full- and
partial-coverage CEREC resto-
rations. The newVITAEnamic
stain-and-glaze system allows
dentists to provide restora-
tions with all of the strength
and esthetics of an all-ceramic
material without the time
required to stain and glaze and
fire the material (Fig. 1).
Enamic is different from any
other dental material to date. It
is an interconnected network
of ceramic and polymer. It
combines the best properties
of both composite and ceramic
into one dental material.
Ceramics have excellent
esthetics, color stability, stiff-
ness and resistance to wear.
Composites have the ability to mill very
fine, delicate margins, are very resilient
and are kind to the opposing dentition.
In this case, #2 onlay and #3 crown
were failing (Fig 2).
The restorations were milled out of
VITA Enamic. Enamic mills very effi-
ciently, with average mill times in the
five- to seven-minute range for most
full-coverage crowns. A try-in estab-
lished excellent fit and contacts. The
customizations to match the existing
dentition were accomplished as follows:
After final try-in and adjustments the
restorations are cleaned with alcohol
wipes and steam.
Prep the outer surface
with either sandblasting
with Al203 with a particle
Customizing VITA ENAMIC
(No Oven Needed)
Creating Beautiful Restorations
C A S E S T U D Y | | | B Y B O B C O N T E , D . D . S .
scheme of the adjacent teeth.
The colors are very bold and need to
be applied very conservatively to create a
subtle, natural result. Ceramic stains are
similar to the stains we would use to tint
and seal the back deck of our homes. The
Enamic stains are more akin to the one-
coat paints used to paint a kitchen. They
need to be thinned out significantly. You
will nowhave 10minutes ofworking time
with the stains as they are light-cured.
Dip your #1 brush into the liquid only
and paint the areas of the restoration you
plan to apply characterizations. Cusp tips,
central fossa, cervical one-third, etc. (Fig.
5). Do not apply liquid to the entire resto-
ration as this may affect the final shade.
Using the thinned-out colored tints,
characterize cusp tips, marginal ridges,
size of 50 um, or 5% hydrofluoric acid
for 60 seconds (Fig. 3). Rinse and dry
thoroughly.
Apply silane as a bond enhancer to the
entire outer surface of both.
Decide which color stains you are
going to use, and dispense a very small
amount of the different shades of
powder on the flat portion of the porce-
lain mixing tray. Dispense a few drops of
the VITA Enamic liquid into one of the
wells (Fig. 4).
Resist the temptation to mix liquid
and powder in the recessed wells as you
would for traditional ceramic stains. Take
your brush from liquid to powder and
create a very, very thin mix of liquid with
a few grains of powder. Then color char-
acterize as desired based on the color
Fig. 1: Stain-and-glaze kit
Fig. 2: Pre-op situation
Fig. 3: Restorations
treated with acid
1 3
2