What are the precautions for scaling? There are mainly the following: 1, dental cleaning precautions, the first thing to note is that the process of scaling will usually be a little sore, if the inflammation is strong or a lot of calculus, people who have not been scaled for a long time may bleed a little. 2, after the scaling of teeth will be a little sensitive to hot and cold and feel sore, this temporary symptoms and the original brush bleeding situation will usually disappear in about a week. If the soreness symptom exists all the time, you can consider the anti-sensitive toothpaste in the market, which will be improved after a month or so. 3, and more importantly, if you want to clean your teeth, it is important to note that people suffering from bleeding disorders, such as patients with thrombocytopenia, leukemia, uncontrolled type 2 diabetes, etc., should pre-apply the appropriate amount of pro-coagulant drugs to control the coagulation rate, so as not to bleed more than when cleaning the teeth. 4, people suffering from acute infectious diseases, such as acute hepatitis active, tuberculosis patients, etc., such people should wait until the disease is stable before they can go to the hospital for scaling. On the one hand because of their condition, and then also to avoid infecting others. 5, patients suffering from malignant tumors in the gums should not receive routine scaling to avoid tumor spread. 6, oral local soft and hard tissue inflammation in the acute phase of patients, should wait for the acute period before scaling, so as to avoid the spread of inflammation through the blood, spread. 7, patients suffering from active angina pectoris, myocardial infarction that has occurred within six months, as well as hypertension and heart failure that cannot be effectively controlled, should not receive routine scaling treatment.