After a patient leaves, it is the dental assistant’s job to clean the room and prepare for the next patient. First, you’ll remove all of the used hand pieces and instruments. Typically, you will take these to the sterilization room in the office to be sterilized for future use. Then you’ll return to the room to wipe down the dental chair, light, counter, and anywhere else that has been exposed to the previous patient. After the room is clean, you’ll set up the next room for the next patient. What instruments and materials you set out will depend on what procedure is planned for the next patient. You’ll learn how to set up rooms to your dentist’s specifications and for each procedure through your education and in-office training.