I had root canal done and went 2 weeks ago to get my crown ,my dentist took impressions put a temp crown in which fell off the same day when in there last Wednesday and they told me it will take another 3 weeks to get my crown from the lab. They also did several fillings on my upper left teeth and I'm having so much pain it also feels like something is leaking from my teeth my cheekbone hurts it almost feels like its swollen the only thing I can relate this pain to is when my wisdom teeth were coming out. I can barely eat because the temp crown is on the right side and every time I bite it keeps shifting. I'm going back to the dentist tomorrow , what are the possibilities that went wrong? Is it normal to wait 5 weeks to put a percent crown? Also since they only do porcelain crowns I asked if they can fused it zirconia , how can I assure that the crown has zirconium in it?