IADR Abstract Archives
Correlation Between 2 Digital Systems for Evaluation of Implant Stability: an Animal Study
Objectives: To investigate the correlation between a mechanical and resonance frequency based systems for measuring implant stability in irradiated rabbit femur
Methods: Rabbit animal model (n=4) was used, where right or left femur was randomly irradiated by a single dose of 15Gy. After 8 days, dental implants (3.5×10 mm) were inserted at the distal condyles of both femurs, following the standard surgical protocol. Primary implant stability was measured using two digital systems (AnyCheck and Osstell), in which the values of implant stability test (IST) and implant stability quotient (ISQ) were recorded. The rabbits were euthanized after 3 weeks and the secondary implant stability was recorded. Differences between the irradiated and non-irradiated sites and differences between the 2 time points were analyzed using the Two-sample and Paired T-tests respectively (∝=0.05). Pearson correlation between IST and ISQ was investigated at the level of 0.01.
Results: No significant difference in implant stability was found between the irradiated and the control sites using either method (p>0.05). Significant higher implant stability was noted 3 weeks post-surgery compared with the baseline using both methods (p<0.001). The IST was highly correlated with ISQ (r=0.831, p<0.001).
Conclusions: High correlation between the mechanical and resonance frequency based implant stability assessment systems was found in the tested rabbit model.
Methods: Rabbit animal model (n=4) was used, where right or left femur was randomly irradiated by a single dose of 15Gy. After 8 days, dental implants (3.5×10 mm) were inserted at the distal condyles of both femurs, following the standard surgical protocol. Primary implant stability was measured using two digital systems (AnyCheck and Osstell), in which the values of implant stability test (IST) and implant stability quotient (ISQ) were recorded. The rabbits were euthanized after 3 weeks and the secondary implant stability was recorded. Differences between the irradiated and non-irradiated sites and differences between the 2 time points were analyzed using the Two-sample and Paired T-tests respectively (∝=0.05). Pearson correlation between IST and ISQ was investigated at the level of 0.01.
Results: No significant difference in implant stability was found between the irradiated and the control sites using either method (p>0.05). Significant higher implant stability was noted 3 weeks post-surgery compared with the baseline using both methods (p<0.001). The IST was highly correlated with ISQ (r=0.831, p<0.001).
Conclusions: High correlation between the mechanical and resonance frequency based implant stability assessment systems was found in the tested rabbit model.