z prime has been around for years in some peoples hands ie dentists it works really well and others it doesnt every thing falls out.2 things you never do are use silane and z prime together as many of my clients have tried even after telling them not to the silane works like an isolating agent and the other is to tell the dentist never clean the surface with phosphoric acid as this stops the chemical cross linking with the zirc basically it reacts with the zirc and stops the z prime reacting chemically with the zirc because the acid gets in 1st and doesnt leave anything for the z prime to react and bond with. Dr Bagi from the states gives some very good lectures on bonding zirconia biscoe the makers of z prime do pay him but he does know his stuff..
