Invisalign is a BPA-free aligner technology to straighten your smile. Invisalign aligners are removable. Unlike braces, you can eat and drink what you want during treatment. You can also brush and floss normally to maintain good level of oral hygiene. Invisalign is very comfortable. There are no metal brackets or wires as with braces to cause mouth irritation. No metal or wires also means you spend less time in the doctor’s chair getting adjustments.