College of Dental Medicine, Columbia University, New York, NY, USA.
Implant Dent. 2011 Apr;20(2):146-56. doi: 10.1097/ID.0b013e31820fbc31.
This study was performed to evaluate the performance of a contemporary dental implant. Assessments were made regarding implant survival and radiographic bone changes from surgical placement to subsequent time points.
Seventy-five patients received 204 dental implants. One hundred and seventy-six implants were placed into healed ridges and 28 implants were inserted into fresh extraction sockets. Implant survival percentages and mean data pertaining to radiographic proximal bone loss for 1 randomly selected implant per patient are presented.
The survival rates for implants placed into healed ridges and fresh extraction sockets were 98.6% and 96.4%, respectively. The overall survival rate for all implants in the 75 patients was 99.0%. With respect to proximal bone levels, mesial and distal bone loss from surgical placement to 12 months was 0.96 mm mesially and 0.83 mm distally. From 24 to 36 months follow-up, the mesial and distal bone changes were 0.16 mm and 0.19 mm, respectively. Up to 36 months after implants were placed into fresh extraction sockets, the mean distance from the implant-abutment interface to the first bone to implant contact was 1.01 mm mesially and 1.10 mm distally.
With respect to the time frame of the study, assessed parameters were similar to other implant systems that are currently used.
本研究旨在评估一种现代牙科植入物的性能。评估内容包括从手术植入到后续时间点的种植体存活率和影像学骨变化。
75 名患者共植入 204 颗种植体。其中 176 颗种植体植入愈合牙槽嵴，28 颗种植体植入新鲜拔牙窝。本文呈现了每位患者随机选择的 1 颗种植体的种植体存活率百分比和影像学近中骨丢失的平均值数据。
植入愈合牙槽嵴和新鲜拔牙窝的种植体存活率分别为 98.6%和 96.4%。75 名患者的所有种植体总体存活率为 99.0%。就近中骨水平而言，从手术植入到 12 个月时近中侧和远中侧的骨丢失分别为 0.96mm 和 0.83mm。从 24 个月到 36 个月的随访中，近中侧和远中侧的骨变化分别为 0.16mm 和 0.19mm。在将种植体植入新鲜拔牙窝后的 36 个月内，种植体-基台界面到第一个种植体骨接触点的近中侧和远中侧平均距离分别为 1.01mm 和 1.10mm。
就研究时间框架而言，评估参数与目前使用的其他种植系统相似。
