This brush is similar to the Curaprox orthodontic thin brush that works like the interdental or proxabrushes to clean hard to reach places in between brackets. The brush head is a bit larger than the Curaprox one. The angulation of the brush head makes this one particularly helpful for cleaning lingual brackets or the back molars. This can also be helpful for anyone with dexterity issues or TMJ issues who struggles with cleaning the corners of their top back molars.