Piezoelectric bone surgery is based on ultrasonic vibration of a device functioning as an osteotome. This device allows precise cuts to be made in bone structures without provoking lesions of adjacent soft tissues and at the same time offering excellent visibility within the surgical field. The use of this technique in alveolar distraction osteogenesis is described. Piezoelectric surgery appears to make the cutting of the transport segment easier and safer. Keywords: bone surgery, distraction osteogenesis, piezoelectric surgery