The Emmi-dent Ortho Brush Head contains a specially patented ultrasonic microchip. The brush design has been specially formulated for people who wear braces. People who wear braces have a fixed plate mounted to the surface of their teeth. Remains of food particles contaminate and lead to cavities and defective tooth enamel. Using the Emmi-dent Ortho allows people who wear braces to keep their teeth clean and healthy. Motionless cleaning also helps to prevent brackets from becoming dislodged which results in frequent visits to the ortodontist. People who wear braces will love being able to clean their teeth with the Emmi-dent Ortho!