Car54, where do I find the CRA newsletter? IS it on Glidewell's website?
Do a Google search for Clinicians report emax, and look at the PDFs for "Clinicians Report BruxZir and eMaxCAD" (press is stronger @~400 mpa, and I think CAD is ~370mpa) and "IPS emax 5 year Clinical performance report"
https://www.google.com/search?q=clinicians+report+emax&ie=utf-8&oe=utf-8&safe=active Here are some of my notes from a seminar I went to in April/May of 2016 by Dr DiTolla of Glidewell. The failure rate they track (remember these are all caliber of Dentists and labs sending to them). I can't remember how many 1000s of units they tabulated, but:
Gold failure rate 0%
Bruxzir failure rate .04 or .09%, not sure of my note there. (1 mm thickness is ideal, you can get by with .6 The Glidewell hammer test was done on a BruxZir at 1.5 mm thick)
emax failure rate 1.8% 1.5 mm is "ideal" for emax occlusion on posteriors.
pfm's failure rate 1.8%
He said most restorations break/fracture when seating, or within the 1st year. Also mentioned was the fact if the emax is 1mm thick occlusally, to adjust the opposing, and that a note should be sent with the case stating so, as if it is adjusted at that "thinness", you will not be able to smooth and polish out the micro-cracks.