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