Can permanent crown on implant be shaved down without removing crown?

Your dentist is correct.....a veneer cannot be placed over an implant crown. Your option to change the shade of the crown would be to have it changed to a different/favorable shade.

Although more clinical and radiographic studies would be necessary for an accurate answer from what we can see in the pictures you have a thin biotype periodontal tissue, which makes it more prone to recession. A solution for your particular case would be to have a soft tissue graft, which will...

Although more clinical and radiographic studies would be necessary for an adequate answer, from what we can see in the photos it may be possible that there is a decrease in posterior vertical dimension, and this may be related to the lack of premolar and posterior molar. A treatment option could...