Hi Tea(m),
I find it useful to take an intraoperative radiograph when the retraction cord has been packed and you are just waiting for them to work before your final impression. Often, you have spent considerable efforts rebuilding a core, and want a baseline of this so you can be sure there are no marginal defects or voids. It also shows up any “undercut” areas on the M and D, so that can be helpful too. Once this is done, then just proceed with your final refinements or impression.
Peace,
Clarrie
#NoStoneLeftUnturned