PDF Version - Glidewell Dental Labs
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Figure 12: This is the Razor ® Carbide bur from Axis <strong>Dental</strong>, my<br />
favorite bur for cutting through PFM crowns. The Razor even cuts<br />
well on those metal substructures we see on patients who went<br />
to Mexico to have their dentistry done. It feels like you are cutting<br />
through a 1950’s Chevy bumper when replacing those types of restorations.<br />
The Razor cuts through porcelain as well, so it’s the only<br />
bur I ever need to get through a PFM.<br />
Figure 13: What’s not to love about the 90-degree angle of the<br />
Christensen Crown Remover (Hu-Friedy; Chicago, Ill.)? I’ve owned<br />
this one for at least 15 years and it still looks like it did the first time<br />
I used it. It’s a good thing Hu-Friedy’s scalers and explorers need to<br />
be replaced, otherwise they might put themselves out of business!<br />
Figure 14: This is a better shot of the Razor Carbide bur going<br />
though the porcelain of a PFM we are replacing. I used to use a<br />
diamond bur to cut through the porcelain and would then switch to<br />
a carbide to cut through the metal coping. But with the Razor, it’s<br />
one and done. It even has a reinforced shank to prevent breakage.<br />
Figure 15: Sometimes when I use the Christensen Crown Remover<br />
to open a crown, it still won’t come off because of the contacts.<br />
Rather than cutting through the lingual portion, I try to grab the<br />
coping with my hemostats and do my best to wiggle it off. Having<br />
cut off many high-strength, all-ceramic crowns, I will never again<br />
complain about cutting off a PFM.<br />
Another Use for Anterior BruxZir Solid Zirconia Restorations27