Curasept Proxi Angle Mix Interdental Brush 5 PCInterdental brushes The interdental brush is a tool for cleaning interproximal spaces and surfaces where the toothbrush, wire and toothpick cannot remove plaque optimally. The pipe cleaner removes plaque, helps reduce gum bleeding and counteracts bad breath. Also ideal for implants, fixed prostheses, furcations and orthodontic appliances.