Roughening, tapering and rounding the bristle ends of an interdental twisted wire brush

摘要

A method for roughening, tapering and rounding the bristle ends (24) of an interdental twisted wire brush (26) with fixed filaments captured between turns of the twisted wire comprises: simultaneously rotating the interdental brush transversely and longitudinally while pressing the non-coplanar bristle ends of the interdental brush against a moving abrasive surface (20) (made of silicon carbide, sapphire or diamond). Also claimed is an interdental twisted wire brush prepared with the above method.