Levin Barry P
Int J Periodontics Restorative Dent. 2016 Nov/Dec;36(6):833-840. doi: 10.11607/prd.2865.
Different parameters can be measured during dental implant insertion to determine the primary stability of the implant. The purpose of this retrospective study was to investigate whether a correlation exists between immediate implant insertion torque value (ITV) and implant stability quotient (ISQ) in nonmolar sites. A total of 59 implants in 52 patients were placed into extraction sockets. ITV was recorded at surgery, and ISQ was recorded at surgery and at follow up. Implants with higher ITV and/or ISQ were evaluated at 6 to 8 weeks. An additional 4 to 6 weeks was permitted for implants with lower initial stability values. A nonsignificant correlation coefficient of 0.06 could be found between the measurements at either time point. The data suggests that there is no linear correlation between ITV and ISQ in the measured population. The findings of this study question the requirement of excessively high ITV and ISQ for immediate temporization and as prerequisites for successful osseointegration.
在牙种植体植入过程中可以测量不同参数，以确定种植体的初期稳定性。本回顾性研究的目的是调查非磨牙部位即刻种植体植入扭矩值（ITV）与种植体稳定性商数（ISQ）之间是否存在相关性。52例患者共植入59颗种植体，均植入拔牙窝。手术时记录ITV，手术时及随访时记录ISQ。ITV和/或ISQ较高的种植体在6至8周时进行评估。初始稳定性值较低的种植体再额外观察4至6周。在任一测量时间点，测量值之间的相关系数为0.06，无统计学意义。数据表明，在所测量人群中，ITV与ISQ之间不存在线性相关性。本研究结果对即刻临时修复所需过高的ITV和ISQ以及成功骨整合的前提条件提出了质疑。
