Small Overbite I Show Alot Of Gums When I Smile And Have A Small Overbite. What Procedure Would I Undergo For Such A Problem?

I show alot of gums when I smile and have a small overbite. What procedure would I undergo for such a problem? - small overbite

This is a purely cosmetic surgery, but it is something that makes me feel very insecure. Please someone could help me out in the name of the procedure that could suffer.