1) Designed for binder removal without damage to the tooth surface design a blunt blade teeth, both good to remove the binder, it will not hurt the enamel layer.
2) bur edge orthodontic tooth gap wide, conducive to the discharge scraped binder.
3) Orthodontic blunt needle tip is no tooth blade design, to avoid hurting the gums.
4) Orthodontic tooth bur rounded bottom edge designed to prevent abrasion of tooth enamel layer.