Invisalign aligners only need to be worn for 22 hours a day, they will not interfere with eating. This is a huge advantage because you can eat your favorite plate of ribs, go out for a romantic date, eat a caramel apple without worrying about something becoming stuck in your teeth or a wire being pulled out of place. This time also allows you to take the aligner out when having an important conversation or making a presentation at work. Overall, this is a convenient way to straighten your teeth and provides the maximum level of flexibility.