Int J Oral Maxillofac Implants. 2021 Sep-Oct;36(5):1008-1015. doi: 10.11607/jomi.8662.
To present clinical outcomes of alveolar ridge augmentation using in situ autogenous block bone and to compare the outcomes with previous studies.
The medical records of patients with a severe horizontal bone defect in a partially edentulous alveolar ridge (width < 3.5 mm), who received bone augmentation using in situ autogenous block bone, were retrospectively reviewed. After a 6-month or longer healing period, the augmentation effect was examined before implant placement. Cone beam computed tomography (CBCT) was performed before and after surgeries. The alveolar width of the bone grafts was measured on the CBCT images.
A total of 16 patients (22 grafts) were included. Graft exposure was seen in three grafts, which were classified as failed cases. The augmentation volume at implant placement in the failed cases was significantly lower than that of the successful cases. There were no significant differences in augmentation between anterior maxillary and mandibular implant sites.
Autogenous bone grafting using in situ block bone is an effective and reliable approach for horizontal bone augmentation in the mandible and anterior maxilla that eliminates second donor site morbidity. Complete release of the buccal flap and tension-free suture is the key to avoiding wound dehiscence and ensuring the effectiveness of bone augmentation.
介绍应用原位自体块状骨进行牙槽嵴增高的临床效果，并与既往研究进行比较。
回顾性分析了部分牙列缺失患者牙槽嵴严重水平骨缺损（宽度<3.5mm）应用原位自体块状骨进行骨增量的病历资料。在 6 个月以上的愈合期后，在植入前检查了骨增量效果。在手术前后进行了锥形束 CT（CBCT）检查。在 CBCT 图像上测量了移植物的牙槽骨宽度。
共纳入 16 名患者（22 个移植物）。3 个移植物出现了暴露，被归类为失败病例。失败病例的植入时骨增量体积明显低于成功病例。在前上颌和下颌种植部位之间，骨增量没有显著差异。
应用原位块状骨自体骨移植是一种有效可靠的方法，可用于消除第二供区损伤的下颌骨和前上颌骨的水平骨增量。完全松解颊侧瓣和无张力缝合是避免伤口裂开和确保骨增量效果的关键。
