Int J Periodontics Restorative Dent 36 (2016), Nr. 6 14. Okt. 2016
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 followup. 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.