Invisalign on Only Top Teeth? Uncommon But Definitely Possible

Most of the time, those who wish to make their smile perfectly straight must have a clear Invisalign tray on both their upper and lower arches. However, in some less common cases, only one arch (typically the top) needs to be treated. But when does this exception happen? How do you know if you fit into this rare group? How long does this different type of treatment take? Does your choice or preference matter in the decision to have one or two aligners? Keep reading to find out!