All in 4 - does it change your facial structure?

While the simple answer is yes, there can be some facial changes, one should not expect drastic changes. This is both good AND bad, in that if you really WANT changes, then I think you will be disappointed. The fullness of lips, or lack of, may mean that the prosthetic needs to come forward/backward a few mm, so spend some time with the Dr to see if a new design will help.

Hello. The antero-posterior position of lips is determined by labial position of teeth. This is also same for All-on-4 prostheses. They must be designed to support lips adequately. Prosthesis may need to be renewed.

When teeth are extracted, you will have some bone loss, and facial muscle support will be altered. Implant restorations will typically regenerate bone on or around the implants providing a strong and stable foundation for implant-supported dentures. Once implant dentures are loaded, this will correct a collapsed bite and increase vertical dimension resulting in a healthy-looking smile and a more youthful looking face. Since the structure under your lips is modified, you may sense a change in the appearance of your lips but it should be nominal, and easily corrected with minimally invasive procedures such as injectable fillers.