Though power scalers have been around since the 1950s few patients outside of those receiving periodontal treatment have experienced them. The future of the general adult cleaning may include the increased use of the power scaler. A power scaler, or its more correct name of ultrasonic scaler, moves at a speed of 25,000 to 50,000 cycles per second with a precise sweeping motion that more efficiently removes plaque and calculus. The ultrasonic waves of the instrument cause destruction of the cell walls of the bacteria located beneath the gum tissue, and the associated water spray flushes out plaque and calculus deposits as well as disrupting biofilm. In spite of the exceptional cleaning ability the ultrasonic cleaners preserve more of the cementum on the tooth structure. Many patients with areas of moderate to heavy calulus find the use of an ultrsonic more comfortable for removing these deposit areas than traditional scaling. Additionally the ultrasonic benefits the dental hygienist as it is more ergonomic and less stressful on their hands.