These are true venners, not 3/4 crowns. And only a couple are wrapped interproximal.
Has anybody ever layered porc on little porc chips.
Its almost impossible.
There is no retention and they move all over the place. You lay porc on them with a brush or a spatula like I use and they stick to your brush.
If the underlying tooth in not discolored or you have excess room you can leave your contacts in the pressed material and only layer the incisal.
They dont move as much that way.
Tip: Take a pin point peice of dead soft, tacky wax and put it on the center of the die.
When you press you venner on the die it sticks, you can turn it up side down or build to it and it wont move. Sometimes they stick too well and it can take a spot of die spacer off when you remove them.
I use the tip of a sharp instrument and pop them off on to my towel, and wipe out the inside of the venner with my damp brush before I fire it.
Now I do a body build. I keep it light I just want to cover the venner and see if the coping is masked.
Build them to correct contour minus the incisal.
I never over build!!!! I hate grinding and I would rather spend the day listening to my exwife bitch than grind and contour and adjust contacts on tiny little chips of porc.
It is so much easier to build exact and do extra bakes for small addons than to grind.
You have 9 contacts on 8 venners if one is off the slightest bit they will all be off.
I used a BL3 body porc.