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 |