Jason Battle, DDS

This can be restored by using aligners to regain lost lip support. A treatment set up would be needed. Veneers are a faster fix if time is a concern. 

Always do the Invisalign first so the bonding can be done right. Otherwise the bonding may need to be done again. 

How big is the gap? The more pics the better. Front, sides, top and bottom, biting. Thanks! Are you looking for bonding or orthodontics? 

I think it is too big to be closed with bonding. Clear aligners would be my suggestion. If you only want to close that and nothing else then the treatment time and cost should be much lower than full braces or aligners. 

We need more info about your case. Which tooth was replaced? Do you have photos of the before? When did you notice this?