Raz Perry, Meir Haya, Levartovsky Shifra, Peleg Maia, Sebaoun Alon, Beitlitum Ilan
Department of Periodontology and Dental Implants, The Maurice and Gabriela Goldschleger School of Dental Medicine, The Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel.
Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, The Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel.
Materials (Basel). 2021 Sep 24;14(19):5537. doi: 10.3390/ma14195537.
Our aim was to analyze the correlation between the IT evaluated by a surgical motor and the primary implant stability (ISQ) measured by two RFA devices, Osstell and Penguin, in an in vitro model. This study examines the effect of bone type (soft or dense), implant length (13 mm or 8 mm), and implant design (CC: conical connection; IH: internal hexagon), on this correlation. Ninety-six implants were inserted using a surgical motor (IT) into two types of synthetic foam blocks. Initial measurements for both the peak IT and ISQ were recorded at the point when implant insertion was stopped by the surgical motor, and the final measurements were recorded when the implant was completely inserted into the synthetic blocks using only the RFA devices. Our null hypothesis was that there is a good correlation between the devices, independent of the implant length, design, or bone type. We found a positive, significant correlation between the IT, and the Osstell and Penguin devices. Implant length and bone type did not affect this correlation. The correlation between the devices in the CC design was maintained; however, in the IH design it was maintained only between the RFA devices. We concluded that there is a high positive correlation between the IT and ISQ from a mechanical perspective, which was not affected by bone type or implant length but was affected by the implant design.
我们的目的是在体外模型中分析手术动力系统评估的植入扭矩（IT）与两种共振频率分析（RFA）设备Osstell和Penguin测量的初始种植体稳定性（ISQ）之间的相关性。本研究考察了骨类型（软质或致密质）、种植体长度（13毫米或8毫米）和种植体设计（CC：锥形连接；IH：内六角）对这种相关性的影响。使用手术动力系统将96枚种植体植入两种合成泡沫块中。在手术动力系统停止植入时记录峰值IT和ISQ的初始测量值，在仅使用RFA设备将种植体完全植入合成块时记录最终测量值。我们的零假设是，这些设备之间存在良好的相关性，且与种植体长度、设计或骨类型无关。我们发现IT与Osstell和Penguin设备之间存在显著正相关。种植体长度和骨类型不影响这种相关性。CC设计中设备之间的相关性得以维持；然而，在IH设计中，仅在RFA设备之间维持这种相关性。我们得出结论，从力学角度来看，IT与ISQ之间存在高度正相关，这不受骨类型或种植体长度的影响，但受种植体设计的影响。
