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Figure 44: Retracted facial view of the cemented BruxZir crowns. In
addition to being the only permanent cement that bonds to BruxZir
restorations without the use of a zirconia primer, Ceramir is also
a breeze to clean up due to its gel state during set-up that allows
for any excess cement to be peeled off in one piece. While these
crowns likely won’t be mistaken for IPS Empress ® (Ivoclar Vivadent)
or IPS e.max in terms of esthetics, these glass-ceramic materials
would have resulted in show-through due to the dark stump shade
color. This is definitely one case where the lower translucency of
BruxZir Solid Zirconia is advantageous.
Figure 45: Retracted left lateral view of the cemented BruxZir
crowns. An interesting thing to note is the visible broken PFM in the
lower left quadrant. We prescribed BruxZir Solid Zirconia for this
case because we wanted to use a material that would completely
mask the dark underlying stump shade. It’s just a coincidence that
we can see a broken PFM, but broken restorations typically are
my primary reason for prescribing BruxZir crowns. I don’t give a
patient more than one chance to break restorations.
Figure 46: Retracted right lateral view of the cemented BruxZir
crowns. Here we see another broken PFM in lower right quadrant.
My point in noting these broken PFMs is that, even if this patient
didn’t have tetracycline staining and instead required replacement
of all of these anterior crowns due to old, leaky composites and
recurrent decay, BruxZir Solid Zirconia still would have been my
restorative material of choice. PFMs have a pretty good track
record over the last 50 years, but when I see a patient who breaks
them, their two choices in my mind are cast gold and BruxZir
Solid Zirconia.
Figure 47: Occlusal view of the cemented BruxZir crowns. How are
these restorations going to hold up against this patient’s difficult
occlusal situation? There are no guarantees in dentistry, but singleunit
BruxZir crowns have the lowest fracture rate of any restoration
in our lab, with the exception of cast gold, but that material really
wasn’t an option in this case. Because BruxZir Solid Zirconia is a
monolithic material (solid zirconia with no porcelain overlay), I have
a high degree of confidence that these crowns will be intact for
years to come.
Another Use for Anterior BruxZir Solid Zirconia Restorations35