Options For Dental Crown Not Fitting and Odor From Gum line?

If your crown is not fitting properly then it should be removed and you should be fitted for a new one.  It sounds as though your gum tissues are inflamed from the crown and most likely the gums are bleeding during the impression.  This will cause an inaccurate impression leading to the poorly fitting crown.  Prior to the impression a soft tissue laser can be used to slightly remove some tissue keeping the margins slightly above the gum line.  It will also stop the gums from bleeding during the impression.  This should give you a perfect fit for your new crown.  Good luck.  

The crown may feel funny to your finger and still fit fine.  If the edges are sealed from decay it may be fitting great. Many factors go into a good fitting crown.  The contour of the crown may be wrong for your gums to be kept clean, it may be bulky causing food and plaque to be trapped or your old filling in the tooth could have been so far below the gum line it was difficult to get a good impression.  A great restoration begins with a perfect impression and them a great lab to make the crown.  What about a second opinion?

A great fitting Crown can only result from an accurate and detailed Impression. From your clinical description it sounds like you would benefit from some type of gingival ir Gum Recontouring procedure. Such a procedure by way of soft tissue laser or by conventional means would allow for an accurate impression and a well fitting and COMFORTABLE Crown! The odor that you describe comes from to a great degree from the Dental Cement washing out or becoming contaminated from persistant bacterial invasion simply due to the Crown fitting poorly around the tooth. A Healthy Gum or Gingival environment will facilitate agood impression as well as a successful and clean cementation of your new Crown. Good Luck!