What is commonly known as “scaling” is known in medical terms as “cleaning”. The so-called “clean”, is to remove bacteria, tartar, pigment and other tartar on the surface of the teeth; and “treatment” means that it is one of the basic methods of treatment of periodontal disease. Through scaling can reduce the inflammation of gingivitis, periodontitis, but rely on simple teeth can not cure periodontal disease. To cure periodontal disease, further diagnosis and specialized oral treatment should follow the scaling. Therefore, the main goal of scaling is to combat oral diseases, not just to look good. How should we recognize scaling? In developed countries, scaling has become a very popular routine oral health care, people regularly find their dentist to scaling once or twice a year. After scaling, if periodontal disease is found, the dentist will carry out professional oral treatment in time to maintain oral health. Dental scaling is a highly specialized and technical job that requires rigorous training to perform. It has been proven that scaling teeth in irregular places is very harmful. First, only remove the visible tartar, while leaving the most pathogenic deep tartar, can not achieve the purpose of prevention and treatment of periodontal disease. Second, the damage to the gums, especially after the removal of tartar exposed roots can not be timely for further professional treatment, not only lead to mouth pain, but also aggravate the condition of periodontal disease. Thirdly, it is very easy to cause cross-infection, which brings undue regret to people. Therefore, the place of scaling should be carefully selected, should go to the regular hospital to find a strictly trained medical staff to clean your teeth.