Replace missing top wisdom teeth with dental implants to prevent further bone loss? (photos)

I find it hard to believe that removing wisdom teeth can cause a change in facial bone structure. In fact, unless you had zygomatic and sphenoid bone reconstruction then this is impossible. There is another explanation, and frankly I can can see barely any difference in your photos.

The changes you mention would not be caused by removing wisdom teeth. Are these the only back molars you had? If so, maybe your face could be more sunken in,etc and implants could be done to help that but these would be in the more forward molar positions. not the wisdom teeth.