Table 1 Comparison between zirconia, lithium disilicate, and PEEK hybrid-abutment-restorations regarding tightening torque (Ncm), loosening torque (Ncm), torque loss (Ncm), and percentage of torque loss (%)
Zirconia | Lithium disilicate | PEEK | p value | |
|---|---|---|---|---|
Tightening torque | 25.08 ± 0.13 | 25.12 ± 0.15 | 25.14 ± 0.19 | 0.70 |
Loosening torque | 22.38 ± 0.68 | 22.49 ± 0.47 | 22.61 ± 0.59 | 0.68 |
Torque loss | 2.70 ± 0.59 | 2.63 ± 0.46 | 2.55 ± 0.50 | 0.80 |
Percentage of torque loss | 10.74 ± 2.39 | 10.45 ± 1.83 | 10.11 ± 1.99 | 0.79 |