Can diastema be cured by Braces only?

Hello I am 18 years old and I have diastema on my upper two front teeth so I decided to have braces but my orthodontist says when the gap on my front teeth closes, he's gonna destroy my molars at the back part of my teeth and put a jacket (?) so that my teeth wont be going back fo its former place and wont be forming the gap anymore. Is this the only option to close my diastema? The thing is, I dont want my molars to be destroyed because none of them are damaged. I dont want veneers either :-(

No doctor answers yet