Tepe interdental brushes, the easy and effective way to clean between your teeth. Interdental cleaning is the removal of plaque from between the teeth, which your normal toothbrush cannot reach. This is where a lot of dental disease starts. You should ask your dental professional on what size brush is recommended for your use, sometimes you may need to use different sizes. The wires used in the interdental brushes are plastic coated and safe to use. It is recommended you change the brush every week or when the brush becomes worn, please note that undue force and continious bending at servere angles will lead to damage of the wire. To reach the back of mouth a clear cap extension to the brush handle is provided In the pack.