There is also the issue of Sailer's pics being heavily photoshopped. Look at the underbite kid's before and take note of the background. It has a texture everywhere, it probably is a wall that's painted blue.
Now look at the after. The texture is still there in the upper left corner, but once you come closer to the patients face it is gone. Someone obviously made the patients skin look smoother and smoothed the wall texture as well by accident.
Then there are alterations to: contrast, brightness, hue and saturation compared to the before. This is all subtly done to make the patient look younger and more full of life in addition to the illusion of smoother skin and darker hair - if you increase contrast you tend to "clip" artifacts/blemishes. Just try it on your TV, if you crank up the contrast to full any bright area will lose all detail within it.
In the afters his patients also never are depicted with a full profile shot but rather at a slight angle - not 3/4 but something between that and full profile. They are also all looking slightly upwards to give more chin and neck definition whereas in the before they are all instructed to tuck their chins and look down.
Unless I could see unaltered photos of his patients I personally would not agree to a surgery with him.
