Braces Power Chain Before and After: Real Gap Closing Results and Color Staining Test
Standard orthodontic ligatures secure the wire into each bracket slot independently. They hold the wire in place so it can correct rotations and guide overall archwire alignment. They do not, however, exert interproximal pulling forces between adjacent teeth.
Power chains link the brackets together. By connecting individual loops into a continuous strand, the chain acts like an extended rubber band strung taut across multiple teeth. The material, typically an injection-molded polyurethane thermoset elastomer, contracts back toward its original dimensions once stretched over the bracket tie-wings.
This contraction creates continuous bracket pressure that transfers directly through the periodontal ligament to the surrounding alveolar bone. Instead of simply guiding teeth along an archwire, the power chain applies immediate traction, pulling the teeth along the wire to eliminate gaps left behind by extractions, natural spacing, or interproximal reduction.