Tooth scaling needs to be registered with the Department of Oral Medicine or the Department of Oral Periodontology. A professional periodontist or oral surgeon or oral general practitioner is able to perform the scaling operation. Scaling is a means of treating and preventing periodontitis and gingivitis. Scaling is a method of ultrasonic high-frequency vibration with water mist rinsing to completely remove tartar and plaque from the tooth surface and periodontal pockets to create a good oral hygiene environment and maintain the health of the periodontium and gums. Routine scaling treatment is recommended once every six months to a year for normal people even if they do not have periodontal inflammation. For patients with periodontal disease, it is even more necessary to have regular scaling treatment, and in some cases, deep periodontal scaling is even required to completely remove the infected material from the periodontium and restore the periodontium to health.