air polishing system. It is designed to fit onto KaVo Multiflex coupling and may be used on all makes of dental units. An orange-flavored sodium bicarbonate powder is placed in the container at the end of the handpiece which holds sufficient powder to clean both maxillary and mandibular arches. Compressed air mixes with the powder and is carried dry through to the tip where it mixes with water. The PROPHYflex 2 can be cleaned in a Miele Thermodisinfector and is fully autoclavable.