please note that Bar & Zircon overlay in case od screw retained type it should be :

* open tray impression technique

** on multi unit abutments only

*** cannot be scanned with intra oral scanner

**** you should contact us to send one of our representatives to your clinic to pick up the impression

it depends on the case ( number of zirconia and Ti units & the number of multiunits )

please contact us for more details