I had asked my dentist to consider the mirror image tooth, so he took a full mold of jaw to send to lab. Yet inside of teeth feel is different on left versus right due to bulge of crown. He tried grinding inner side before permanent cement. I could not judge correct amount of grinding. (We had over–ground the temp crown.) Is grinding even correct for inside of Crown (removes smooth surface)? I will replace, even at full price as so annoying. To what extent Dr. should replace at no cost?