Are teeth extraction really required for an overbite?

I had two consultations with two different orthodontists. The first one said that my overbite can be fixed with full braces and elastics using SureSmile technology. The second one said that I have a 40 percent overbite and minimal upper teeth crowding and smaller lower jaw which caused the overbite and teeth misalignment. He said that I need to have the premolar bicuspids in the upper region taken out to fully correct the bite and misalignment. I am confused and not sure which way to go.