Generally, there is no restriction on eating from a simple scaling, but if a scaling is followed by a supragingival treatment, it is recommended that you eat or drink after half an hour. Scaling, also known as supragingival scaling, is the process of removing stains, plaque and tartar from the gums and polishing the surface of the teeth with a specialized ultrasonic instrument. The scaling process is usually painful and sore, and if there is inflammation in the gums, the scaling will be accompanied by bleeding. Simply scaling and polishing does not affect eating, but for some patients with severe gum inflammation, scaling and polishing will be iodine dry oil anti-inflammatory astringent drugs, it is recommended that half an hour before eating or drinking, so as not to give full play to the role of drugs. It is recommended to maintain good oral hygiene after scaling to prevent plaque and tartar deposition again. In addition, most of the patients after scaling teeth will have a short period of hot and cold sensitivity, it is recommended not to eat too cold, too hot and other foods, so as not to aggravate the degree of sensitivity.