骨移植已广泛应用于面部骨骼重建术。以往,额骨、肋骨、颅骨作为主要的自体移植骨。这些移植骨容易制取,但术侧可出现后遗症。与以上诸骨相比,下颌骨骨片制取快,后遗症少。 方法 下颌骨颊侧、升支和外斜线的粘膜注入含有肾上腺素的利多卡因,于牙龈线1cm处自升支沿外斜线到第一磨牙切开粘骨膜,电烙止血。翻起粘骨膜瓣,暴露下颌骨侧面。于外斜线的中央,自升支到颏孔大约3mm处行骨切开,然后,于骨切口的两端向下达下颌骨下缘,垂直切开。为了防止损伤下面的牙槽神经血管束和牙根,行骨切开时,骨凿紧贴骨皮质的内侧面,注意不能超过此深度,一般可得到一1.5cm×3cm Bone transplantation has been widely used in facial bone reconstruction. In the past, the frontal bones, ribs, skull as the main autograft bone. These grafts are easy to make, but sequelae can occur on the operative side. Compared with the above bone, mandibular bone chips to take fast, less sequelae. Methods The mucosa of the buccal, ascending and extrinsic oblique of the mandible was injected with lidocaine containing epinephrine, then the mucoperiosteum was excised from the ascending branch to the first molar at 1cm of the gum line, and the hemostasis was electroplated. Flip the mucoperiosteal flap and expose the side of the mandible. At the center of the external oblique line, the bone is excised from the ascending branch to the mental hole at a distance of about 3 mm, and then the lower edge of the mandible is lowered downward at both ends of the bone incision to make a vertical incision. In order to prevent damage to the underlying alveolar nerve vascular bundles and roots, bone osteotomy, bone chisel close to the medial cortical surface, be careful not to exceed this depth, the general can be a 1.5cm × 3cm