it was like listening to a lecture from 2007 it wasnt correct then either im pretty sure the uk has been into zi for a long time now i wonder if this is just a rev up or worse still its actually a genuine question.
depending on which one 1450 - 1600 c i use prettau dispersive 2 1300mpa margin to incisal edge no strength decreases as you go to the incisal its very good esthetically no lines as the blocks are made differently you can get dispersive three which is more trans in the incisal 3rd but also weaker...
metal slinger is a casting machine like a sling shot. im that old my original boss showed me how to cast with a potato because i would use wet asbestos.
its not the vario base we do heaps of them .i would say just reduce the contour in that area. sometimes you have to slim these ti bases down a bit to get the right shape for each job.
yes i know Nasser he is great at bonding Zi ive seen him speak a number of times .i was invited to set up a stand at one of his talks in Oz showing what was possible with Zi back when everyone thought it was only white cores. his son is a very nice guy as well.
thats why the dentists shouldnt use phosphoric acid to clean their crowns as it interferes with zi primers when bonding.this is referencing back to disturbeds original post its worth a read. as far as porcelain chipping i havnt had one chip in years and i dont use zirliner i use many different...