What should I do if I have a missing permanent lateral incisor? (photos)

My dentist removed one of my lateral incisor (my right side) last December. I've noticed that my front teeth are moving and filling out the space where my lateral incisor was. Now, I have a slightly misaligned front set and a painful gum. I've also noticed that I'm having eating and speech difficulty. Should I go for having braces with "fake" tooth to align my teeth or anything more to resolve my problem?

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