The Accuracy of New and Aged Mechanical Torque Devices Employed in Five Dental Implant Systems

Table 3

Differences between mean values and target values in N⋅cm and as percentages.

	Biohorizons	Bredent	Implant KA	Straumann	Zimmer
Target value (N⋅cm)	30	30	25	35	30
All wrenches
Mean value	23.624	30.091	22.774	29.978	27.031
Difference	−6.376	0.091	−2.226	−5.022	−2.969
Difference%	−21.253	0.305	−8.904	−14.348	−9.898
Aged wrenches
Mean value	23.704	30.539	23.159	29.825	26.220
Difference	−6.296	0.539	−1.841	−5.175	−3.780
Difference%	−20.988	1.797	−7.362	−14.786	−12.599
New wrenches
Mean value	23.545	29.644	22.389	30.131	27.841
Difference	−6.455	−0.356	−2.611	−4.869	−2.159
Difference%	−21.517	−1.188	−10.446	−13.911	−7.196