Kim Seong-Gon, Song Ji-Young, Lee Yong-Chan
Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Gangneung, Gangwondo, Republic of Korea.
Oral Maxillofac Surg. 2011 Sep;15(3):189-92. doi: 10.1007/s10006-011-0271-z. Epub 2011 Apr 19.
Alveolar bone is usually resorbed after the loss of a tooth. As the buccal bony plate of the alveolar bone is thin compared to the palatal or the lingual bony plate, the bone resorption rate is higher on the buccal side. If a patient is partially edentulous, vertical bone resorption is restricted by the adjacent teeth. In such a case, the residual alveolar ridge becomes thin and narrow. As a result, a veneer graft is required.
Two patients received a total of two implants with a modified technique. The modified technique is described in which the implant hole is made in both the mandibular ramus and the recipient site. Autogenous bone was taken from the mandibular ramus as a partial-thickness graft. The grafted bone was adapted to an installed dental implant and used as a veneer graft. There were no cases that showed the fixture exposure during the follow-up periods. Numbness was not reported after the operation in any of the cases. Additionally, osseointegration failures did not occur during the follow-up periods.
Our technique has been shown high success rates and is reproducible for a veneer bone graft with concomitant implant installation.
牙齿缺失后牙槽骨通常会发生吸收。由于牙槽骨的颊侧骨板比腭侧或舌侧骨板薄,颊侧的骨吸收速度更快。如果患者为部分牙列缺失,垂直骨吸收会受到相邻牙齿的限制。在这种情况下,剩余牙槽嵴会变薄变窄。因此,需要进行贴面植骨。
两名患者共接受了两颗采用改良技术植入的种植体。描述了改良技术,即在下颌升支和受植部位都制备种植窝。从下颌升支获取自体骨作为分层骨移植。移植骨适配于已植入的牙种植体并用作贴面植骨。随访期间未出现种植体暴露的情况。所有病例术后均未报告麻木感。此外,随访期间未发生骨结合失败的情况。
我们的技术已显示出高成功率,并且对于同时进行种植体植入的贴面骨移植具有可重复性。