What kind of surgeon is needed to fix a crooked smile? Not sure if I should do a plastic surgeon or someone else? (photo)

So I am very embarrassed of my crooked smile and after 30 years I'm ready to have it fixed! I have had this for as long as I can remember, and from 6th grade on I have been mortified of it. I'm not sure what the issue is, my teeth are very straight, could it be my jaw needs realignment surgery? I would appreciate and if y'alls opinon so I can have a starting point and finally get the smile I want! Thank you

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