Violation
A dentist ask the dental assistant to prepare the unit with a handpiece that has a speed of 450,000 rpm with friction-grip locking system. Which handpiece will the dental assistance choose?
Laser
Ultrasonic
Low-speed
High-speed
A dentist ask the dental assistant to prepare the unit with a handpiece that has a speed of 450,000 rpm with friction-grip locking system. Which handpiece will the dental assistance choose?
Laser
Ultrasonic
Low-speed
High-speed