The DentaSonic Twist handpiece is a precision reciprocating IPR handpiece designed for smooth back-and-forward movement during interproximal reduction and finishing. It features an interchangeable push-button head for Ø 2.35 mm instruments, ISO attachment compatibility, and internal water cooling to support controlled, comfortable treatment. Available in 4:1 and 6:1 ratios with a 0.9 mm stroke, it is built for quiet, vibration-free handling across orthodontic, aligner, lingual, and restorative procedures.