Forces exerted by orthodontic aligning archwires.
The forces produced by 10 orthodontic archwires were measured in a simulated clinical situation and also with the wires in simple three point loading. All tests were made to a maximum deflection of 3 mm. At 1.5 mm deflection the forces exerted when each wire formed part of a fixed appliance ranged from 1.5 to 8.3 N. When the same wires were used as simple beams the forces exerted ranged from 0.3 to 3.0 N. The findings indicate that the forces generated by orthodontic mechanisms cannot be calculated from straightforward physical principles.
Rock
W P
WP
University of Birmingham Dental School.
Wilson
H J
HJ
D000497:Alloys; D003799:Dental Stress Analysis; D008422:Materials Testing; D009967:Orthodontic Appliances; D009969:Orthodontic Wires; D013193:Stainless Steel; D013314:Stress, Mechanical; D014025:Titanium
D000497:Alloys; D013193:Stainless Steel; C013616:nitinol; D014025:Titanium