Stones require periodontal scaling in a specialized dental clinic, and patients should also practice good oral hygiene. Patients who feel that they have obvious calculus need to undergo systematic periodontal scaling, which is also commonly known as “scaling”. Mainly includes ultrasonic gingival cleaning, manual subgingival scraping, polishing sandblasting and so on. Ultrasonic gingival cleaning that is the use of ultrasound principle vibration to remove the surface of the teeth exposed to the large stones, manual subgingival scraping that is the use of manual scraper to remove the root surface of the stones. Smaller stones are also polished and sandblasted after scaling and scraping. After one or two or several treatments, most patients’ calculus will disappear significantly. For long-term maintenance, patients need to practice good oral hygiene. If you have any discomfort from calculus, please consult your dentist promptly.