... Cerficate 3.Three mainfuncation:bone,root,clean Woodpecker Ultrasurgery best quality.CEProduct Feature:Three main functions:bone,root,clean. ... function of root is mainly for mechanical ultrasonic treatment, such as periodontic, endodontic and prevention treatment.Handpiece, cable, tip holder, working ... :24kHz~29.5kHzOutput power:3~20W Woodpecker Ultrasurgery best quality for endodontic surgery .CE