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Closed: Dec. 25, 2019 (Christmas) | Jan. 1, 2020 (New Year’s Day)
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Bring the real strength of full-contour zirconia into the cosmetic zone with KDZ Bruxer Aesthetic® crowns and bridges. Keating Dental Arts’ revolutionary new zirconia formulation provides the ultimate in translucency. The KDZ Bruxer Aesthetic® rivals the IPS e.max® crowns, while its 650 MPa flexural strength is nearly twice that of lithium disilicate.
CAD/CAM-fabricated to match all 16 VITA® Classic shades with the industry-leading precision of our digital workflow. KDZ Bruxer Aesthetic® is the next generation of zirconia, which is perfect for patients who want quality and durability.
The KDZ Bruxer Aesthetic® place anywhere you use a lithium disilicate. An ideal combination when you want high aesthetics anterior, single crowns. It is typically not used for veneers. Instead, we would stick to a more bond-able ceramic, like lithium disilicate, or IPS Empress®. We recommend this for crowns on premolars, again, part of the aesthetics, or even crowns on molars. The KDZ Bruxer Aesthetic® is ideal for molars because it is more aesthetic than the traditional KDZ Bruxer due to the translucency.
The KDZ Bruxer Aesthetic® is also an ideal option for 3-unit bridges as well as anterior bridges. For example: Let’s say you are replacing a central, or premolar replacement, and the patient was missing the mandibular second premolar. You could use a KDZ Bruxer Aesthetic® bridge, which is very translucent, from the molar to the first premolar.
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One of our flagship materials at Keating Dental Arts is our KDZ (Keating Dental Zirconia), which is also known as our Zirconium Crown. If someone indicates that they are going to order a zirconium crown, really what they are saying is that they are ordering zirconium dioxide. Zirconium dioxide is a blend of heavy metal zirconium, from the periodic table with oxides. When mixed, they become a ceramic material. Often mentioned that zirconium dioxide is metal based. It is metal based before it becomes an oxide, but by definition, it is a non-metallic substance.
The unique aspect of this material is that it is very stable and reliable. In fact, the zirconium dioxide that we see with our KDZ Bruxer gets stronger as it is stressed. It is what we call transformational toughening, and as you apply pressure or force on the restorative material, the zirconium dioxide, you get increased cross-linking of the material. This cross-linking eliminates further propagation of fractures, which is why we seek traditional ceramics or ceramic on metal that won’t break under stress.
The KDZ Bruxer Aesthetic® is durable. It is something that is predictable and something that you, as a clinician can rely on for your patients. The flexural strength of a KDZ Bruxer is about 1100 megapascals. The KDZ Bruxer Aesthetic® is about 650, even though that is only half when you compare it to material like the empress, which has excellent clinical performance, it is a flexural strength is only 200. That is 1/3 of that of our KDZ Bruxer Aesthetic®, a 1/7 of that of our KDZ Bruxer. e.max is about 400, so 400 megapascals flexural strength is less than 60% what we see with our KDZ Bruxer Aesthetic® and less than 30% of what we see with our KDZ Bruxer.
The main difference in the KDZ Bruxer is that it has a higher flexural strength, so with the KDZ Bruxer, we have a flexural strength of about 1500 megapascals and flexural strength is how they measure ceramic materials. Our technicians take a bar of ceramic, they put it on 2 sawhorses, they apply force until it breaks, and that is the flexural strength. So theoretically, the higher the flexural strength, the more durable the ceramic. There is undoubtedly going to be marginal ridges, central fossa, cuss tips, or any ceramic hanging off the prep, that is undergoing stress. It is similar to what we would see with the flexural strength test.
Now, the disadvantage of the KDZ Bruxer is that it is opaque, so aesthetics is compromised. It is indeed better than a porcelain piece of metal crown, or a gold crown, but it is a bit more opaque.
We introduced the KDZ Bruxer Aesthetic®. This material is highly translucent, in fact, and it fits into a category called zirconium dioxide HT, or high translucent zirconium. There are several different brands on the market. We extensively test these materials, and under blind studies, we picked the material that we thought was the most aesthetic, in fact, all the evaluators picked the same material, and that is the material that we use for our KDZ Bruxer Aesthetic®.
Now, the advantage of KDZ Bruxer Aesthetic® is that it is not opaque, in fact, it is translucent, and it rivals most of the alternative systems out there, including e.max, which is one of our most popular.
The disadvantage, albeit minor, is that the flexural strength is about 650 megapascals or about half of what we see with our traditional KDZ Bruxer. Still, this is 6 times stronger than porcelain on a PFM, and it is far stronger than what we see with lithium disilicate, being the makeup of the e.max, so it is indeed not a weak material. It is just not as durable as our traditional KDZ Bruxer®.
With the popularity of monolithic zirconia, clinicians often ask about their clinical performance. They can look aesthetic because of their high translucency, like the KDZ Bruxer Aesthetic®. They can look great, they fit unbelievably well, despite being very conservative. The occlusal can be as thin as .5 millimeters, in a gold prep, overall less than a millimeter, so very conservative.
The clinical performance of our traditional KDZ Bruxer, which we have now had available almost 10 years, had our very lowest remake and failure of any of the materials we offer. That includes gold, PFM’s, e.max and empress. What we found with our KDZ Bruxer Aesthetic®, which we have had almost a year now, is that it has a very similar clinical performance to that which we see in our traditional KDZ Bruxer®.
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