overlay bonding strengths pfm/zcore/emax

[envisiondental]

I've been trying to find some info on this...
Are the bonding strengths of overlay porcelains similar? I know it probably varies a bit on the different vendors material. But in general.. not counting the strength or mpa of the core be it zcore/pfm/emax etc... in which restoration is the overlay bonded the best to... I'm not even gonna guess.
thanks in advance.

 

[grantoz]

if you fire them properly they are all about the same no matter what the companies say this include zi emax etc the main problem some people had with zi was that they were firing it to quickley and cooling to quickley this is the big problem they had. you must remember zi is a very poor heat conductor so give thecore time to let the heat in and out so it doesnt upset your porcelaine