Dental crowns are an investment of your time and finances as well as your dentist's time, attention and care. Please do follow up with your dentist and see if this can somehow be resolved as you should feel happy with your recent dental care.
As you are concerned about esthetics, so most important part is searching good cosmetic dentist whose primary focus is on cosmetic dentistry. Now come to material, there are so many good quality materials available, but it's my advice to discuss this part with your cosmetic dentist because there...
Thomas Nechupadam, BDS, MDS - Account Suspended says:
A whiter brighter set of teeth will look wider and can reduce the dark corridor that makes the arch look narrow. the length of the teeth can be altered with enameloplasty. The broken tip can be repaired with nano ceramic composite filling to get a good contour without veneer.