Are patients that need teeth extracted due to crowding "candidates" for Invisalign? Will Invisalign work? The answers are yes in my office! Take a peek at this adult who I finished treating recently. Her teeth are completely straight and her extraction spaces are completely closed and roots are uprighted properly. Is her bite completely perfect? No, but it would be the same situation if she had traditional braces. To fix her bite would require jaw surgery which this patient declined. We improved her self confidence with a new pretty smile and certainly made it easier for her to clean her teeth improving dental health.