The improvement of endoscopic technology has revolutionized surgery, a
nd endoscopy has become a trend in recent years. In plastic surgery, e
ndoscopic release of the carpal tunnel and endoscopic face-lifting hav
e been used clinically. However, no report has been noted that deals w
ith the bone of the face. Using pigs as the animal model, endoscopic r
esection of the mandibular angles was undertaken. The result was satis
factory; it appears that it can also be effective in humans.