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FAQ:
Q: What is the purpose of a power chain?
A: A series of steel top plates with hinge-like barrels curled on each side. Pins are inserted through the barrels to make a joint. … Pins are retained by press fits or heading in the barrels of one top plate and are free to articulate in the barrels of the next link.
Q: What is a power chain?
A: Power chains are connected strings of ligatures (elastics). They are normally made from the same material that is used on the ligatures (the elastics holding the archwire to the individual brackets). In some instances, the power chains can be made of metal twists instead of elastic.
Q: What color is the power cable?
A: Positive – The wire for the positive current is red. Negative – The wire for the negative current is black. Ground – The ground wire (if present) will be white or grey.