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Current Issue - Volume 36, Issue 6, 2016

Journal Impact Factor: 1.415
5-year Impact Factor: 1.771




Featured Article

The Correlation Between Immediate Implant Insertion Torque and Implant Stability Quotient
Barry P. Levin, DMD

Dr Barry Levin reports in “The Correlation Between Immediate Implant Insertion Torque and Implant Stability Quotient” that there is often confusion regarding the clinical goals for implant placement. An implant needs strong initial primary stability, which is easily measured in terms of the implant stability quotient (ISQ). Excessive insertion torque value (ITV) is often perceived as necessary to achieve high primary stability. However, this can damage the osseous structure, resulting in bone resorption. As Levin reports, ITV should be considered a separate entity from primary stability as excellent primary stability can often be achieved with minimal insertion torque.

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. A nonsignificant correlation coefficient of .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 for immediate temporization and as a prerequisite for successful osseointegration. High ISQ values were achieved with moderate ITV of 20 to 40 Ncm for successful immediate provisionalization.

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