Interdentalborstar med uppruggade, fasade och rundade borständar och sätt att framställa sådana

摘要

An interdental twisted wire brush having roughened, tapered and rounded bristle ends prepared by rotating the interdental brush both transversely to the axis of the brush and axially along its longitudinal axis, while flexing the bristles and grinding the bristle ends of the interdental brush against a flat, moving abrasive surface.