匠之锋®下额器械

下颌骨是面部轮廓的基石，也是解剖结构中辨识度最高的边界之一。剥离至此，已非单纯的层次分离，而是对骨骼轮廓的重新显露。

The mandible is the cornerstone of the facial contour and one of the most distinct boundaries in facial anatomy. When dissecting down to this level, it is no longer a mere separation of layers, but a unveiling of the bony contour.