Can a Veneer Be Straightened After It Was Installed off Line?

Once a veneer is bonded into place it is difficult to make those type of changes.  It usually requires removal of the veneer and having a new veneer be fabricated.  Talk to your dentist about your concerns and see what they are able to do to address your concerns.  

Can it be straightened after it's cemented on? To some degree, yes. Even after trying in the veneers, there are some nuances that don't show up until everything is cemented into place. Sometimes it doesn't really show up until the numbness goes away and you can finally move your face around again normally.

Ask for a follow-up appointment-don't panic yet. Let your cosmetic dentist see what you see. Sometimes there is a very simple touch up that is fast and easy and can make all of the difference in the final look.

Occasionally, there is something that just can't be fixed after the fact. In some rare situations the veneer has to be removed and remade. It's really far too premature to know if you would need something as involved as that.

You have gone through a LOT of care, at the end you really ought to love your new smile. I would imagine that your dentist will want you to feel that way too and want to help touch up what you see to make it awesome!