Can I still use Snap-on veneers if I have only 3 teeth on my upper part? (photos)

Snap-On Smiles are designed to use your existing teeth as support to hold the 'snapped-on' smile in place. They typically aren't recommended to cover large gaps in the smile, such as yours. You might want to consider a dental bridge, dental implants, dentures, or dental-implant supported ...

A Snap on Smile can pretty much be placed on top of any set of teeth, as long as they are not too mobile.  Snap on Smile should only be considered a short term patch, kind of like a band-aid.  It provides no treatment and has no medical value; it simply covers the issues that exists...