Invisalign braces fixing bites:
Invisalign braces can successfully treat many forms of malocclusion (an abnormality in how your teeth come together at rest, when eating, speaking, and chewing.  It is possible that an overbite or underbite can be successfully corrected.  However, only your dentist or an orthodontist can assess the severity of the condition to be corrected and whether or not it can be successfully accomplished with Invisalign braces.
A severe underbite may actually require correction by surgical procedures.  Less severe underbite cases may respond favorably to use of an Invisalign procedure.  Overbites can also respond very favorably to Invisalign treatment but, as with an underbite, much of the success depends on the severity of your overbite.