Al.
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Oh.ok maybe i phrased my question wrong. i wasnt referring to checking margins on the solid. i was referring to knowing when the contacts are seated. you said you can tell by the pic you posted that the crown was seated 95% of the way down. i am asking how you determine that its 95% down? i dont "check" margins on the solid model, but i use them as a tool to verify when the crown is seated on the solid. based on the picture you posted i have absolutely no idea how you can tell its seated 95% of the way and i want to learn what youre seeing to give you that confidence.
i do absolutely agree that final seat of contacts (especially on veneers) are the most tedious thing we do in the lab. takes a very long time and sometimes crazy patience to get them all just where its required.
The marginal ridges are higher here compared to the working model.
Can take crown and push it firm in working model and dies spread and contacts look better.
My guess is two hits with my rubber disk in the middle of the distal contact and the lingual would drop down and contacts would look much nicer.
I use this for those last final touches. Pretty happy with it.