Is it possible to reverse my extraction orthodontics?!

Yes, it is possible to reverse the effects of bicuspid extraction treatment and I know because I have done it. Although growth has stopped by age 26, it is very possible and routinely done in patients as old as 50. I have used expansion effectively in a 55 year old female. Properly done, expansion does not just tip teeth; the jaw actually expands and becomes wider. The main disadvantage of doing expansion in adults is that it is not stable and night time wear of a retainer will be required forever. Reversing bicuspid extractions will involve reopening the extraction spaces where the now missing teeth were. Appliances like a maxillary sagittal and a Reverse Face Mask will advance the premaxilla to allow the spaces to be reopened. Think of a Reverse Face Mask as something that works like a headgear that works in reverse to the way it is usually used in bicuspid extraction treatment. Try this link to find someone who can help because most traditional orthodontists will not know how to do it: www.iaortho.org.

functional orthodontist; treated TMJ since 1984

You cannot reverse the extractions. You can only change the shape of the jaw a small amount with tooth movement. If you want gross change, you must take a surgical approach

I am a dentist