Authors | Model | Insertion torque values compared for different subgroups |
---|---|---|
Motoyoshi et al. [6] | Human patients | 58 self-drilling without root contact: 7.1 ± 3.4 Ncm |
7 self-drilling 1 point contact: 8.7 ± 3.0 Ncm | ||
5 self-drilling multiple contacts: 8.1 ± 2.3 Ncm | ||
58 pre-drilling without root contact: 6.8 ± 2.3 Ncm | ||
7 pre-drilling 1 point contact: 7.4 ± 1.3 Ncm | ||
8 pre-drilling multiple contacts: 7.7 ± 2.1 Ncm | ||
Chen et al. [84] | Mongrel dogs | 25 pre-drilling without root contact 17.1 ± 5.9 Ncm |
47 pre-drilling with root contact 19.9 ± 6.6 Ncm | ||
Briscenoa [25] | Beagle dogs | 23 self-drilling without root contact 23.8 ± 3.6 Ncm |
23 self-drilling with root contact 50.7 ± 7.2 Ncm | ||
Wilmes et al. (a) [33] | Mandibles of pig cadavers | 147 pre-drilling without root contact: mean 16.6 ± 5.7 Ncm |
50 pre-drilling with root contact: mean 18.5 ± 5.8 Ncm | ||
Wilmes et al. (b) [33] | Mandibles of pig cadavers | 147 pre-drilling without root contact: mean 16.6 ± 5.7 Ncm |
108 pre-drilling with root penetration: mean 21.9 ± 5.6 Ncm | ||
McEwan (a) [32] | Mandibles of pig cadavers | 3M implants |
10 self-drilling without root contact: mean 11.71 ± 0.9 Ncm | ||
10 self-drilling with root contact: mean 17 ± 2.5 Ncm | ||
10 self-drilling implants with root penetration were excluded because they did not further advance after root contact | ||
McEwan (b) [32] | Mandibles of pig cadavers | Tomas implants |
10 self-drilling without root contact: mean 8.76 ± 0.8 Ncm | ||
7 self-drilling with root contact: mean 12.86 ± 1.2 cm | ||
10 self-drilling implants with root penetration were excluded because they did not further advance after root contact |