Abstract：
When considering placing dental implants in atrophic edentulous sites, there may be inadequate site width and little or no vertical bone loss. Any of several surgical procedures can augment these sites. Extracortical augmentation is done by applying graft material against the cortical bone. This technique expects progenitor cells to migrate outside the bony ridge\'s confines and form new bone. Another method entails ridge splitting and expansion to create space for osteogenesis and, when possible, implant placement. This may be a better method for horizontal ridge augmentation. The ridge is split, separating the facial and lingual cortices for a complete bone fracture. The patient\'s osseous cells can then migrate into the created space from the exposed medullary bone to form bone. The technique can be preferably performed flapless so the intact periosteum maintains a blood supply to ensure appropriate healing.
摘要：
当考虑将牙种植体放置在萎缩性缺牙部位时，可能有不足的部位宽度和很少或没有垂直骨丢失。几种外科手术中的任何一种都可以扩大这些部位。皮质外增强是通过将移植材料应用于皮质骨来完成的。该技术期望祖细胞迁移到骨脊的范围之外并形成新骨。另一种方法需要脊线分裂和扩张，以创造成骨的空间，如果可能,植入物放置。这可能是一种更好的水平脊增强方法。山脊是分裂的，分离面部和舌皮质以形成完整的骨折。然后,患者的骨细胞可以从暴露的髓质骨迁移到所产生的空间中以形成骨。该技术可以优选地进行无折叠,使得完整的骨膜维持血液供应以确保适当的愈合。
