Dental scaling is an operation of the Department of Dentistry. Generally, patients request scaling for better cleaning of plaque and tartar in the periodontium of the mouth. The specific department should be decided by the establishment of the patient’s hospital. If the patient’s hospital only has a stomatology department, the scaling can be done by the stomatology department. Basically, all dentists have the qualification of scaling, but if the patient visits the hospital stomatology has further subspecialties, scaling should hang oral medicine instead of oral surgery number, there is a more special clinical situation, that is, there is a professional dental level 3 hospital, oral medicine has further subdivisions, then scaling should hang periodontal number, by periodontal experts to patients for Scaling, certainly the most professional.