IADR Abstract Archives
Hybrid Design Implants Augment Primary Stability and Assure Robust Osseointegration
Objectives: The aim of the present study was to compare a novel hybrid design implant (TLC) to a well-established parallel walled (TL) tissue level implant in terms of primary and secondary stability over time.
Methods: Test (n = 10/endpoint) and control (n = 10/endpoint) implants were placed in the mandible of minipigs and left for submerged healing for 3, 6 and 12 weeks, respectively. Maximum insertion torque and implant stability quotient (ISQ) were measured for each implant at placement. Osseointegration and cortical bone maintenance were histologically evaluated by measuring bone to implant contact (BIC) and first bone to implant contact (fBIC), respectively.
Results: A significantly higher maximum insertion torque was measured for the hybrid design compared to the parallel walled implant (57.8 ± 24.7 Ncm and 22.6 ± 23.2 Ncm, respectively; p = 0.0002). While the mean values for ISQ were comparable between the two implant types, a lower SD was measured for the hybrid implant design (75.0 ± 6.7 for TL compared to 75.4 ± 3.2 for TLC). Total bone to implant contact was comparable between both implant types at each of the evaluated time points. The first contact of bone tissue with the implant surface (cortical bone maintenance) was found to be significantly more crestal at 12 weeks for the hybrid design compared to the parallel walled implant (0.312 ± 0.828 mm for TLT compared to -0.223 ± 0.845 for TL, p = 0.0273).
Conclusions: The novel hybrid design implant showed improved primary stability and an overall improved crestal bone height maintenance compared to the parallel walled design.
Methods: Test (n = 10/endpoint) and control (n = 10/endpoint) implants were placed in the mandible of minipigs and left for submerged healing for 3, 6 and 12 weeks, respectively. Maximum insertion torque and implant stability quotient (ISQ) were measured for each implant at placement. Osseointegration and cortical bone maintenance were histologically evaluated by measuring bone to implant contact (BIC) and first bone to implant contact (fBIC), respectively.
Results: A significantly higher maximum insertion torque was measured for the hybrid design compared to the parallel walled implant (57.8 ± 24.7 Ncm and 22.6 ± 23.2 Ncm, respectively; p = 0.0002). While the mean values for ISQ were comparable between the two implant types, a lower SD was measured for the hybrid implant design (75.0 ± 6.7 for TL compared to 75.4 ± 3.2 for TLC). Total bone to implant contact was comparable between both implant types at each of the evaluated time points. The first contact of bone tissue with the implant surface (cortical bone maintenance) was found to be significantly more crestal at 12 weeks for the hybrid design compared to the parallel walled implant (0.312 ± 0.828 mm for TLT compared to -0.223 ± 0.845 for TL, p = 0.0273).
Conclusions: The novel hybrid design implant showed improved primary stability and an overall improved crestal bone height maintenance compared to the parallel walled design.