> Ensure that the medical device is completely dry internally and externally after cleaning and disinfection. > Remove any liquid residues using compressed air. Contra-angle handpieces. WS-56 L, WS-75 L, WS-91 L, WS-92 L with mini LED+ Manual disinfection . Surgical treatment of dental hard tissue. Lubricate the dry contra-angle handpiece immediately after thermo washer disinfection. W&H recommends mechanical cleaning and lubrication with W&H Assistina 3x3 The medical device must be used in accordance with these Instructions for use. > Only the components approved by the manufacturer may be replaced (rotor, Customer satisfaction has absolute priority in the W&H quality policy. Sterilize the turbine handpiece following manual or mechanical cleaning, Sterilize the contra-angle handpiece following manual or mechanical cleaning, disinfection and lubrication. > Sterilize the nozzle cleaner following cleaning We have based our development and design of the dental handpiece and In case of service or repair contact an authorized W&H service partner (see pageThe Proxeo straight/contra-angle handpiece is intended for cleaning and and design of the medical device on the dentists, dental hygienists, dental. Contra-angle handpieces without light Manual disinfection . The dental handpiece/contra-angle is intended for the following applications: Removal of Rotate the handpiece sheath in an anticlockwise. (O ) direction (opening) until it clicks. w Handpiece bur: Insert the rotary instrument up to the limit stop