i-arch is a unique and innovative system of orthodontic archwires, coming from years of research at SIA Orthodontic Manufacturer. i-arch allows an highly innovative e!ective, easy, compatible and biological orthodontic approach. Its e!ectiveness is given by the use, since the alignment and leveling stage, of rectangular archwires with an immediate delivery of torque. Its ease of use comes from the reduced number of wires to used. Its compatibility is given by the possible use with any straight-wire prescription. Its biological compatibility is ensured by the use of very gentle forces (from 40g), reducing the traumatic e!ects, especially at the beginning, of the orthodontic treatment.