A micro motor set cannot be utilized with the Airotor hand piece. They are two distinct instruments with distinct rotation per minute and distinct applications. Airotor: A water supply is included with the Airotor to prevent the pulp from overheating when it is used to prepare teeth for fillings and cavities in patients. Micromotor: The dental micromotor is used for pre-clinical tooth preparation (preparation in dummy models), polishing teeth after cleaning, and post-space preparation following root canal therapy.