Horowitz R A
College of Dentistry, New York University, New York, USA.
Compend Contin Educ Dent. 1997 May;18(5):441-7, 450-2; quiz 454.
The placement of endosseous dental implants is often hampered by the loss of alveolar bone. In the posterior maxilla, the presence of the maxillary sinus and less-dense bone present additional obstacles to successful implant placement. Existing methods of subantral augmentation require extensive surgical manipulation, often including a second surgical site for harvesting autogenous bone. The development of surgical osteotomes has facilitated the placement of implants in areas of minimal alveolar bone height in the posterior maxilla. This article describes the osteotome technique for sinus augmentation at the time of implant placement and presents a short-term evaluation of 34 implants placed in 18 patients.
牙槽骨丧失常常会妨碍牙种植体的植入。在上颌后牙区，上颌窦的存在以及骨质密度较低给成功植入种植体带来了额外的障碍。现有的窦底增高方法需要广泛的外科操作，通常包括开辟第二个手术部位来获取自体骨。手术骨凿的发展促进了在上颌后牙区牙槽骨高度极低的区域植入种植体。本文描述了在植入种植体时进行窦底增高的骨凿技术，并对18例患者植入的34颗种植体进行了短期评估。
