How do you pack cord?
Packing cord is a probably a dying art, but if margins are subgingival and they need to be captured , the gingiva needs retraction. To properly pack cord, it's best to get any bleeding to stop before attempting to pack cord. If the sulcus is too moist it is much harder getting the cord to stay in the sulcus ( it tends to float out when it is overly wet). Placing a finish line subgingivally often causes bleeding, since the gingiva can be abraded. I personally like creating one mm long bevels sub gingivally especially on the proximal portions of my preparations and this definitely tends to cause bleeding. If the finish line is placed only .5 mm subgingivally, impressioning and cord packing is usually easier, but if there is any appreciable gingival recession the margin of my restoration becomes visible ( not a good thing with ceramometal restorations). To stop any bleeding I use Ultradent's Viscostat ( a ferric sulfate preparation that is gentle for the gingiva). It is appli...