Hello and thank you for your question. While it is possible to adjust crowns, if necessary, too much adjustment can weaken the integrity of the crown which can lead to future problems. Also when the lab makes the crowns the color characterization is built into the crown, too much adjustment can potentially affect how the color characterization fits with the surrounding teeth. There are several steps in creating proper crowns. After preparing the tooth, a provisional crown (Temporary) should be made. Tooth length, size, shape, etc. should all be tried in the provisional phase and any corrections made then. The permanent crown is then made using the provisional crown as a blueprint in order to ensure that the final restoration (permanent crown) matches the shape, position and color of surrounding teeth to make sure you like the results. I recommend following up with your Dentist or consulting a Prosthodontist. A Prosthodontist is a dental specialist who has advanced training in restoring and replacing teeth and can create a customized treatment using the latest techniques in dental crowns.
