Do dentists through out sterilization dental handpiece?

Disposable items (gauze, cup, suction, fluoride tray, impression tray, etc.) are discarded after each use, as well as the burrs used in hand (drill).
After use, scrub first and then put in an ultrasonic cleaner. After rinsing and drying, put them into an outdated sterilization bag and sterilize them.
Needles and anesthetics are discarded in the "shark" container, which is sterilized in the same manner as other instruments.
In addition, chairs, stents and counters on the operating table are also cleaned between each patient. Every patient has replaced the plastic barrier.
It's a job, but you have to stay on the basis of infection control, cross-contamination, and an organism that is indirectly transmitted through dental clinics.