[Correctly performing ultrasonic supragingival scaling, subgingival scaling and root planning exercises: part Ⅵ of a series on basic training in periodontal diagnosis and treatment].

The prevalence of periodontal disease among adults in China remains high, and its control and prevention continue to pose significant challenges. Initial periodontal therapy is the primary and core constituent of periodontal treatment, during which ultrasonic instruments are commonly used in clinical practice to remove plaque and calculus both supragingival and subgingival. However, the application of these instruments still requires further standardization. This article aims to provide scientific and standardized clinical practice operation guidance for dentists, ensure the quality of initial periodontal treatment, and promote people's periodontal health by clarifying the principle and teaching significance of ultrasonic scaling instruments, elaborating the key points of operation, precautions, common mistakes and countermeasures of ultrasonic supragingival and subgingival scaling, as well as introducing the key points of sandblasting and tooth polishing after ultrasonic scaling.