Prettau takes 100 years before failing in accelerated aging tests lava ht takes 3 years in accelerated testing these are independent tests ive heard that the 600 mpa stuff doesnt age also ,basically these test dont tell us much what does is failures in the mouth and it aint happening when things are done right.If you really want to get scared you should see how emax goes in accelerated aging tests.This was all started by emax ie ivoclar loosing market share in the full contour market all ceramics age including vmk's .I find it interesting that we really wanted art glass to work and it didnt and we are all very exited about peek but the stuff glued to it will probably fall off lava ultimate another one failing.But and a big but at that for some reason Zirconia which has been working now for 15 years commercially we all say oh we better be careful it might fail because someone wants to be the 1st to say i told you it would fail. People keep talking about theoretical problems done with flawed testing saying things like its only going to last 5 years when the material has already been around much longer.Or the other one I like is oh my bridges keep braking and i ask where did you get your zirc and they say i buy it on line from china as it is too expensive to buy it from well known companies Duh. People dont remember the study that came out after the ageing study by Lunguini my spelling could be a little off ,stating that these accelerated aging studies are flawed and not valid.
