I am 24 years old, and I have a bad upper front tooth, which affects my appearance! Now I want to correct my teeth. I don't know whether to straighten the upper and lower teeth together or just the upper teeth. Personally, if aesthetics is the main consideration, orthodontics can be done alone without considering occlusion. Anterior incisors (incisors) are not particularly important to the masticatory relationship. Personal suggestion: If you really want to do orthodontics, you'd better do it together. Overall aesthetics is the basis of orthodontics, and the quality of occlusion is also related to your overall aesthetics. In the process of orthodontics, it is best not to move hard things, which will affect the effect of orthodontics and prolong the orthodontic time (in short, eating hard)

I hope my suggestion will relieve your troubles.