Crown seating acceptable but not "perfect" what can happen? Should I have it fixed?
Doctor Answers 3
Open Crown Margin
1 millimeter is a lot when it comes to your tooth! You paid for a crown that fits, and you want to make sure it lasts for a very long time. Predictability is the most important consideration. An open margin is not predictable. Have it replaced.
Improperly seated crown
Yes, I would strongly recommend getting the crown replaced to prevent problems in the future. A gap of 1mm will allow food and bacteria to accumulate, potentially causing decay under the crown over time.