Scaling factor cannot be

1. Suffering from various hemorrhagic diseases, such as patients with thrombocytopenia, leukemia patients, three uncontrolled diabetes, uncontrolled hyperthyroidism and other appropriate patients should be pre-application procoagulant drugs to control blood clotting speed, so when scaling bleeding;

2. Some patients suffering from acute infectious diseases, such as acute active hepatitis, tuberculosis, etc., and other diseases should also be stable only after scaling to a hospital. This is because of your own illness; the other should also avoid infecting others.

3. Local hard and soft oral tissue inflammation in the acute phase of patients (excluding acute necrotizing gingivitis) should be over after the acute phase dental instruments of scaling, inflammation of the extension in order to avoid spread of blood;

4. Patients with gingival malignant tumors, is not easy to accept the conventional scaling, in order to avoid tumor spread.

5. With active angina pectoris, myocardial infarction within six months and the attack had failed to effectively control hypertension and heart failure patients is not easy to accept the conventional scaling treatment.

Of course, in these patients is not always the case cannot be scaling up, but must be carefully chosen scaling of time, and other systemic symptoms stabilize, and in the Carefully pull the infected tooth is not cancerous hospital by experienced medical professionals for scaling, in order to avoid benefits or reduce harm, and to scaling treatment for best results.

In addition, it is worth mentioning that pregnant women should be thoroughly pre-pregnancy oral treatment because during pregnancy (especially after the first three months and three months) scaling will greatly increase the probability of miscarriage.