Table 1 Mean and standard deviation of retention forces between straight and angled screw access channel abutments
Groups | Straight screw access channel Ti-base (n = 7) | Angled screw access channel Ti-base (n = 7) |
|---|---|---|
Mean (SD) | 1731.57 (63.68) N | 1032.29 (89.82) N |
Mean difference (95% CI) | -699.29 (-608.62, -789.95) | |
Effect size (d) | 8.982 | |
Test (P value) | 16.804 (< 0.0001*) | |