Prophylaxis plays an essential role in preventing pathologies of the oral cavity, but to be effective, it requires the use of userfriendly, professional instruments. Prophy Silk by Ivory air-driven dental polisher uses sodium bicarbonate powder and is delicate on the enamel. The Prophy Silk polisher is ideal for removing plaque, treating discoloration and for general cleaning. The principle of functioning is based on the mechanical action of a flow of sodium bicarbonate crystals that is accelerated in a jet of compressed air and water and dissolved to form a highpower spray. The jet expelled from the tip produces a powerful cleaning effect and is pleasant for the patient too. This easy to use instrument is ideal for dentists and dental hygienists alike.