Corticotomy after effects - how many months are needed to align my teeth? (Photo)

I have already started my orthodontics treatment. In first session Doc had placed 4 brackets so that I get used to it. Doc is suggesting if I have to finish the treatment in 8 months then I have to go through a corticotomy surgery . I need to understand is there any after effects to it or immediately after the surgery. Also if I am not opting the surgery within how many months my teeth can be in a line. Thanks PS : I have only 8 months in hand as I don't want to wear the braces on my wedding day.

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