Dental cleanings do not harm your teeth. Dental cleaning is the removal of calculus, plaque and stains by means of a specialized instrument, commonly used as an ultrasonic scaler. The doctor chooses the right oscillation power and operating angle to avoid damaging the teeth. Small scratches on the surface of the teeth caused by the cleaning process can also be removed by polishing the surface of the teeth. Teeth cleaning is good for oral health, teeth cleaning can effectively remove plaque, tartar and pigment on the surface of the teeth, maintain periodontal health, avoid gum recession and alveolar bone resorption, and prevent teeth from loosening and falling off. To develop the habit of regular dental cleaning, generally recommended six months to one year cleaning treatment. The irregular operation in the process of scaling may cause some damage to the teeth, therefore, it is recommended to choose to go to the stomatology department of regular hospitals or dental specialty hospitals for scaling.