Dentaltown April 2023 - 53

FIG. 8: Initial preop photo demonstrating
Class IV fracture.
FIG. 9: Round diamond bur used to create
chamfer of transition zone.
FIG. 12: Flowable gray tint placed to simulate
translucency.
FIG. 10: Flame diamond
used to create infinity bevel.
FIG. 13: Flowable opaquer used on incisal
edge to replicate the incisal halo.
FIG. 15: Achromatic microfill used
to overlay facial aspect.
FIG. 11: Chromatic microhybrid placed
over chamfer of transition zone,
creating a " blank canvas. "
FIG. 14: Tints and opaquer cured. Note
creation of polychromatic appearance.
FIG. 16: Final outcome.
smoothed, and a round diamond bur
was used to create the shallow chamfer
for the transition zone (Fig. 9).
A flame diamond was used to create
the infinity bevel (Fig. 10).
COMPOSITE LAYERING
A chromatic microhybrid (Renamel
Microhybrid, Cosmedent)-Shade A1
in this example-was used to recreate
most of the restoration. The
microhybrid will compose the entirety
of the palatal aspect, and must cover
the entirety of the chamfer of the transition
zone on the facial aspect. It is
not advisable to have the microhybrid
go past the chamfer margin, because it
may leave no room for the microfilled
composite and that aspect of the
restoration may look dull over time,
creating an optical disharmony.
Note that if the chamfer is not
covered completely, a fracture may
still be visible. If needed, a flowable
opaquer could be added to further
mask the fracture line. This creates
the " blank canvas. " Excess or occlusion
can be adjusted at this point.
This is done dry, then an unfilled resin
(Complete Unfilled Resin, Cosmedent)
is added onto the restoration. Fig. 11
demonstrates the placed and adjusted
microhybrid.
Because the adjacent central incisor
had a large amount of incisal translucency,
as well as a prominent incisal
APRIL 2023 | 53 | DENTALTOWN.COM
halo, a thin, sharp probe (Matt's
Probe) was used to place gray tint
(Creative Color, Cosmedent) on the
incisal third, taking care to avoid the
incisal edge (Fig. 12).
The inherent opacity of the microhybrid
could often serve as the incisal
halo at the edge of the tooth, though
if desired, the incisal halo can be
further enhanced using a flowable
opaquer. In this case, a 50/50 combination
of white and A1 opaquer,
mixed in a resin keeper, was applied
to the incisal edge using the probe
(Fig. 13). Fig. 14 shows the effect of
cured tints and opaquers over the
microhybrid composite, revealing a
polychromatic effect.

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Dentaltown April 2023

Table of Contents for the Digital Edition of Dentaltown April 2023

Dentaltown April 2023 - Cover1
Dentaltown April 2023 - Cover2
Dentaltown April 2023 - 1
Dentaltown April 2023 - 2
Dentaltown April 2023 - 3
Dentaltown April 2023 - 4
Dentaltown April 2023 - 5
Dentaltown April 2023 - 6
Dentaltown April 2023 - 7
Dentaltown April 2023 - 8
Dentaltown April 2023 - 9
Dentaltown April 2023 - 10
Dentaltown April 2023 - 11
Dentaltown April 2023 - 12
Dentaltown April 2023 - 13
Dentaltown April 2023 - 14
Dentaltown April 2023 - 15
Dentaltown April 2023 - 16
Dentaltown April 2023 - 17
Dentaltown April 2023 - 18
Dentaltown April 2023 - 19
Dentaltown April 2023 - 20
Dentaltown April 2023 - 21
Dentaltown April 2023 - 22
Dentaltown April 2023 - 23
Dentaltown April 2023 - 24
Dentaltown April 2023 - 25
Dentaltown April 2023 - 26
Dentaltown April 2023 - 27
Dentaltown April 2023 - 28
Dentaltown April 2023 - 29
Dentaltown April 2023 - 30
Dentaltown April 2023 - 31
Dentaltown April 2023 - 32
Dentaltown April 2023 - 33
Dentaltown April 2023 - 34
Dentaltown April 2023 - 35
Dentaltown April 2023 - 36
Dentaltown April 2023 - 37
Dentaltown April 2023 - 38
Dentaltown April 2023 - 39
Dentaltown April 2023 - 40
Dentaltown April 2023 - 41
Dentaltown April 2023 - 42
Dentaltown April 2023 - 43
Dentaltown April 2023 - 44
Dentaltown April 2023 - 45
Dentaltown April 2023 - 46
Dentaltown April 2023 - 47
Dentaltown April 2023 - 48
Dentaltown April 2023 - 49
Dentaltown April 2023 - 50
Dentaltown April 2023 - 51
Dentaltown April 2023 - 52
Dentaltown April 2023 - 53
Dentaltown April 2023 - 54
Dentaltown April 2023 - 55
Dentaltown April 2023 - 56
Dentaltown April 2023 - 57
Dentaltown April 2023 - 58
Dentaltown April 2023 - 59
Dentaltown April 2023 - 60
Dentaltown April 2023 - 61
Dentaltown April 2023 - 62
Dentaltown April 2023 - 63
Dentaltown April 2023 - 64
Dentaltown April 2023 - Cover3
Dentaltown April 2023 - Cover4
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