Michael DiTolla, DDS, FAGD
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BruxZir® Solid Zirconia crowns and bridges were originally designed by Glidewell Laboratories for use in the posterior to replace cast gold or metal occlusals when the patient did not want any metal showing in his or her mouth. As dentists began placing BruxZir restorations and were repeatedly satisfied with the results, they started to prescribe BruxZir for bicuspids as well. The lab realized it needed to increase the translucency of this material if dentists wanted to use it in the anterior.
Glidewell’s R&D team members worked on this and told me when they were ready to test it. They asked me for an esthetic challenge, so I decided to give them the tough one we all face: the single-unit central incisor crown adjacent to a natural tooth. The photos show the clinical steps for this anterior BruxZir crown. For a crown that is 100% zirconia with no ceramic facing, I think the lab pretty much nailed it.
Figure 1: Tooth No. 9 is to be prepped for a BruxZir Solid Zirconia crown. I chose this case for a couple of reasons. First, tooth No. 8 is a natural tooth, and will be a good test of how the light interacts with the BruxZir restoration versus the natural tooth. Second, tooth No. 7 is an all-ceramic crown, which will be replaced later, and teeth Nos. 10 and 11 are a PFM cantilever bridge. So, we can also compare the BruxZir crown to those two restorations.