I have to say my first reaction to seeing your teeth is that they are stunning. People often pay a great deal of money to get their teeth to look as good as yours. Of course your teeth can be shortened. It is very easy to take tooth structure away. Much harder to put it...
Black lines at the gum line are common due to darkening of the tooth after having an root canal treatment. However, with the proper restoration, i.e. a Zirconium crown, there is a high likelihood that we can mask the black line. You definitely want to avoid a PFM if black lines are of concern to...
Cosmeetic dentistry is Art & Science. You discussed two different problems Opacity and Greyness. When you have a titanium abutment there is grey color that needs to be masked. I do not know what type of implant or where it is placed relative to the facial profile of your...