Bahat O
Int J Oral Maxillofac Implants. 1993;8(2):151-61.
One to nine Nobelpharma osseointegrated implants were placed in the posterior maxillae of 213 consecutive partially edentulous patients. Reconstruction was completed with a ceramic fixed partial denture with follow-up of 5 to 70 months (mean 30.3 months) after loading. Thirty-four implants in 29 patients failed; eight were replaced and one of these failed. Thus, the overall failure rate was 4.8% (35/732). The failure rate in type IV bone was only slightly higher than that in types II and III bone (5.5% versus 4.6%). The failure rate in the entire molar area was 5.3% compared with 4.5% in the premolar area (P = NS), and the failure rate of 7-mm implants was 9.5% compared with 3.8% for implants of all other lengths (P = .01).
在213例连续的部分牙列缺损患者的上颌后部植入1至9颗诺贝尔制药骨整合种植体。用陶瓷固定局部义齿完成修复，加载后随访5至70个月（平均30.3个月）。29例患者的34颗种植体失败；8颗被替换，其中1颗再次失败。因此，总失败率为4.8%（35/732）。IV型骨中的失败率仅略高于II型和III型骨（5.5%对4.6%）。整个磨牙区的失败率为5.3%，而前磨牙区为4.5%（P = 无显著性差异），7毫米种植体的失败率为9.5%，而其他所有长度种植体的失败率为3.8%（P = 0.01）。
