Removed my old crown. After getting my upper front tooth capped my lower teeth touches the back of crown. Suggestion? (photo)

Go see the dentist, it should be an easy fix to adjust the crown. It is possible that when you were numb, you were not biting right. Make sure your dentist checks the bite in protrusive movement. My only concern is that your crown has metal in the back, and that is usually done when there is not much room to place porcelain for your dental crown, having said that hopefully he will not place a hole in the metal.I am assuming that your nerves are damaged and already your dentist had checked that !best of luck!

I would first begin by returning to your dentist and having them check and adjust the crown so you are not hitting  to heavy on it.  Long term hitting too heavy on that front tooth can cause mobility of the tooth, bone loss, tooth/crown fracture and pain.  As long as the porcelain has sufficient thickness after adjustment the crown should still remain strong.  

The first thing is to have the dentist adjust the bite so that it does not touch. If this doesn't thin the crown too much, it might be fine as is. Otherwise ,it would have to be redone but more tooth would have to be removed for appropriate thicknedd of the crown without being high