first get an x ray so called OPG ...upon that it can be diagnosed wether tooth is impacted (like it is present in upper jaw but not erupted in mouth )upon that if present inside condition will be analysed and can be made to erupt ..followed by braces treatment
second option is like going for orthodontic treatement to make available space by alignment followed by prosthesis ( like implant, bridge , Rpd and more)
Next Steps
visit dentist for clinical evaluation