However, most practices understand good business principles and have stated or implied warranties There is no law regulating what a practice does when a crown fails in less than a year, but if it broke due to the patient behaving poorly, do not expect a free replacement....
All adjustments do not require new impression.
If you do not trust your dentist to do the right thing and you are questioning him, you might have to find one that you have trust in. Once your treatment is completed get a second opinion about the work and get your mind at ease.
That is a rather large area of papillae missing between those two crowns. I am almost certain that you will not see complete regrowth of papillae in that area. It is just too large at this point. The odds are that you have probably had some bone loss in that area as well...
