Porous polyethylene implants are available that are designed to augment the
mandibular ramus and body. They can be used to increase the bigonial dista
nce in patients with normal mandibular anatomy who desire an increase in lo
wer facial width. When used in combination with extended chin implants, the
y can camouflage the skeletal contour inadequacies associated with class II
mandibular deficiency. The implants are placed through intraoral incisions
and fixed with titanium screws. In a clinical experience with 11 patients
over 6 years, this technique has proven to be safe and effective.