Quality, as we know from Braun Oral B flat. However, these brushes are more suitable for cleaning of pontics or implant restorations. An effective as floss or dental tape this brush never get there because you definitely do not enters in normal spaces !!! Silk or Tape remains the most thorough cleaning for narrow spaces! As I said, more suitable for bridge members and implant restorations, where there also are there better alternatives. I know what I'm talking, I'm from the compartment. (Have these brushes concerned for an acquaintance who she finds toll ...)
