The cost of scaling in the dental department of a regular tertiary hospital is around$300, and usually in secondary hospitals as well as dental clinics, the cost of scaling is slightly lower. However, patients should pay enough attention to the choice of hospital. Because the process of scaling is not only cleaning tartar, but also bleeding gums, the instruments need to be strictly sterilized. Usually, the dental cleaning instruments of the three hospitals are sterilized per person, high temperature and autoclave sterilization, which can meet the strict standards before they can be used on the patients, so they are more reliable. In addition, the advanced degree of dental cleaning machine also determines the patient’s experience. Usually, the eighth generation of ultrasonic scaler is used in the three hospitals, the process of cleaning the teeth should be very gentle, not particularly sharp pain, and less damage to the surface of the teeth, so it is a more ideal way to clean the teeth.