3 weeks post op. Do crowns settle in and appear to shorten?

Porcelain crowns or teeth can crack due to excessive forces of your bite (occlusion) . That can be due to para functional habits such as grinding, clenching, crown being too high, chewing on hard food, trauma and many other factors..... I am sorry to hear that your tooth was cracked and needed...

Well during late months in pregnancy you may get an xray to r/o any infection. it is possible following a crown placement the pulp gets too stressed and eventually will need a root canal. you need to see a dentist to figure it out

Hi:I definitely advise you to contact your dentist right away and share your concern.Best,Dr. Maddahi

Hi: Depending on the amount of tooth structure remaining, individual crowns are always better.  However, if you do not have enough tooth structure it might be better for the crowns to be connected. Best, Dr. Maddahi

Hi:It's best to have the temporary crown adjusted to make sure your bite is ok.  Not adjusting it can lead to more pain.Best,Dr. Maddahi

It sounds like you have a failed root canal that is allowing recurrent infection. Your choices are: Retreat the root canal conventionally. If that fails, then an apico-ectomy. This means doing a surgery procedure that completes the root canal from the root tip. If your original root canal is...