I went to a dentist here in Chicago and was denied a white glass with high gold content crown for tooth 19 during the procedure I was told by the dentist that did the procedure that he was doing a full root canal then I get a letter of denial saying that I have an inadequate fill and they will not cover this feeling so I have this like little Gap in my tooth from whatever he put inside with no cap or crown on it I have a problem grinding my teeth and I'm worried that this is going to affect my b