Reasonable and moderate scaling is good for the health of teeth and gums, while inappropriate scaling may lead to gum recession and other negative consequences. The main role of scaling is to clean up dental calculus, so that the teeth clean, reduce the breeding of dental bacteria. At the same time, the process of scaling is conducive to the cleaning of the teeth, caries, wisdom teeth, etc., timely treatment is very important to maintain oral health. Scaling has many benefits at the same time, inappropriate scaling may lead to bleeding gums, gum recession. In addition, unhygienic scaling instruments may lead to oral infections or infections in other parts of the body through the bloodstream. It is important to note that scaling must be done in a regular dental clinic or hospital to avoid unscientific scaling.