The benefits of scaling mainly include removing supragingival tartar, plaque and stains, and polishing the surface of the teeth to delay plaque and tartar redeposition, and effectively preventing and treating oral diseases. 1. Remove gingival calculus, plaque: scaling is the most effective way to remove gingival plaque and tartar, after scaling with a rubber wheel and polishing paste to polish the surface of the teeth smooth, but also able to slow down the attachment of plaque and the formation of tartar. 2. Remove color stains: pigments formed by eating some foods and colored drinks can be removed in the process of supragingival cleaning. 3. Prevention and treatment of oral diseases: scaling can reduce the inflammatory condition of gingivitis and periodontitis, and actively prevent the occurrence of caries and periodontal disease. Scaling has some benefits, but should authoritative medical institutions to avoid adverse reactions.