Can you fix an underbite getting the All-On-4 procedure done?

This depends on how severe your underbite is.  It would help if you could post a profile photo with your mouth closed and teeth in normal bite, and another photo with your teeth touching (normal bite) and your lips grinning.  These would give me an idea as to what correction may be possible.  I hope this helps.

Dr Le

Hi:In order to give you accurate advice I would need to see profile pictures to see the amount of underbite and X-rays to see the level and the amount of bone.  In general there is a possiblity of handling overbite and underbite issues with all on 4 implants.Best,Dr. Maddahi