Methods The height and the width of the mandibula r ramus,the locations of the mandibular foramen and the canal and so on were mea sured in 40 sides of mandibular ramus in 20 cadavers.

方法对20例40侧新鲜湿性下颌骨标本测量下颌升支的高度和宽度,下颌孔和下颌管的位置等。