Closed, short, and long orthodontic power chains differ in connector length, chain pitch, and force behavior. This guide explains how spacing, loop count, working distance, and force decay affect clinical selection, while introducing Sino Ortho’s TPU manufacturing, color options, and OEM/ODM support.

Compare latex and latex-free orthodontic elastics by material, latex sensitivity, elastic recovery, force decay, common sizes, inventory planning, and OEM/ODM options for orthodontic distributors.

Passive self-ligating brackets use a rigid slide to close the bracket slot and retain the archwire without actively pressing it toward the slot floor. Friction, resistance to sliding, rotation control, and torque expression vary with archwire size, slot clearance, tooth position, and bracket–archwire angulation.

Active self-ligating brackets use a flexible spring clip to close the bracket slot. The clip becomes mechanically active only when an archwire contacts and deflects it, so its effect varies with tooth position, archwire size, archwire–slot play, and the stage of orthodontic treatment.

Active and passive self-ligating brackets differ mainly in how their closure mechanisms interact with the archwire. This guide compares spring clips and passive slides across alignment, space closure and finishing, helping orthodontic professionals understand their biomechanical characteristics and selection considerations.

Learn the key differences between PP and PC cheek retractors, including flexibility, transparency, patient comfort, bending resistance, and high-temperature sterilization compatibility. This guide helps dental clinics and distributors choose the right cheek retractor material for routine clinical use or sterilization requirements.