Skip to main content

Advertisement

Table 2 Values of friction for different bracket and wire/ligature combinations and mean friction values

From: Frictional resistance exerted by different lingual and labial brackets: an in vitro study

Group ID code Bracket Mean friction Friction 0.012 Friction 0.014
Elastic Wire Elastic Wire
Lower lingual A1 In-Ovation L 4.73 3.55 5.90
A2 7th Generation 3.19 3.42 1.28 5.20 2.85
A3 New STb 1.1 0.81 0.59 1.80 1.18
A4 O.R.J. 1.79 1.86 1.72 1.77 1.82
A5 OldSTb 2.32 1.73 1.48 3.40 2.65
Lower labial A6 Forestadent 3.17 4.63 1.86 4.50 1.70
A7 Ormco Mini Diamond 2.65 3.95 2.24 2.50 1.90
A8 G&H Ceramic 4.64 4.80 1.07 8.10 4.61
Upper lingual B1 7th Generation 4 4.45 2.24 7.00 2.29
B2 O.R.J. 2.43 2.99 1.56 2.80 2.39
B3 Old STb 2.1 2.34 0.76 2.90 2.39
B4 New STb 1.79 2.01 0.67 2.37 2.10
B5 In-Ovation L 2.6 1.67 3.52
Upper labial B6 Forestadent 3.27 4.53 1.63 5.50 1.40
B7 Ormco Mini Diamond 2.62 3.84 0.62 4.00 2.03
B8 G&H Ceramic 4.38 5.30 1.70 8.17 2.36