This is a system based on series of clear aligners, which look like transparent trays and fit snugly over your teeth. You wear each aligner for about 1 to 2 week and once your teeth have moved slightly you move onto the next one. You carry on with this process until your teeth reach the perfect alignment.
The main advantage of Invisalign is that you can take the aligners out in to eat, drink and brush your teeth. So there is no need to avoid certain foods, you can eat what you like.
For more information regarding this treatment