Extraction for proper curve smile.

It's been One and a half year ....And now my doctor want me to go for 4 teeth extraction two from upper and two from lower jaw .. i am worried that four teeth extraction would create lots of space and my smile would not look good on my face as it has now become broad and slightly protruding due to lack of space ...I went for my dental treatment One and a half year back coz i had crooked front incisors and i want to straighten up my teeth so that i look gud while smiling at that tym my doctor didn't do any extraction....Bt now my smile has broaden up and there is mid line discrepancy as well. .I want my teeth straight and align with the perfect arch... I want to know if it is possible to only remove one upper and lower teeth from one side only ... for creating enough space so that my smile curve bends in former shape and mid line discrepancy also get vanished