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Table 4 Correlation coefficient for items related to accuracy depending on the angle at which the examiner read the torque value

From: Experimental study on the factors affecting torque of beam-type implant torque wrenches

Manufacturer Difference in torque between 90° and 60 (N cm) Torque per 1 mm in scale (N cm/mm) Distance between scale and center of beam (mm) Scale line width (mm)
KTC 0.3 3.3 \(\fallingdotseq\)0 0.2
THOMMEN 0.9 2.8 \(\fallingdotseq\)0 0.1
Nippon Piston Ring 1.2 4.5 \(\fallingdotseq\)0
GC 1.4 5.0 0.5 0.5
Straumann 1.5 4.4 2.0 0.1
Nobel Biocare 2.1 3.6 2.0 0.1
Kyocera 2.5 3.6 2.0 0.2
SHOFU 3.3 5.0 3.0 0.5