Should I remove my teeth to get braces?

top 2 molars removed previously. I want to straighten my smile and fix slight protrusion. One orthodontist suggests removal of the bottom molars so that the rear teeth will then move forward and the front teeth back to straighten my smile. The other thinks I should simply get braces to align the teeth as they should be then ( since I have a lot of room in my mouth as it is) and then possibly get Implants. 23 year old female.

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