Can two front crowns cause incisive papilla to swell, also swelling between upper teeth?

There are a few things with dental crowns that could cause the papilla to swell:1.  Allergy- If the crowns are PFMs (porcelain fused to metal) there are some people that have allergies to the metal (typically nickel).  This can cause inflammation of the surrounding tissue.  An allergist can find out if you do have allergies to metals.2.  Crown margin overhang- an overhang can cause plaque, food impaction and irritation of the gum tissue.3.  Excess cement- if the cement that was used for placing the crown was not entirely removed the excess can cause the gum tissue to inflame and even contribute to bone loss.If you have concern about this issue that you do not feel your dentist is handling I would suggest having a second opinion done.  Good luck with the crowns and the hip.