During the procedure, doctors used once-off medical equipments. There were covers on the surface of the handles of
operating-lamp and dental handpiece. My concern is, before my procedures, the doctors used their hands(with new gloves) to connect the new once-off medical equipments to dental handpiece and they adjusted the operating-lamp with hands during the procedure, but the covers on the handle of the operating-lamp and handpiece haven't been changed before my procedure.