The correct term for scaling is periodontal scaling, and the precautions to be taken after periodontal scaling mainly include eating precautions and oral hygiene maintenance, etc. The details are as follows. 1. Eating precautions: (1) Don’t smoke for 2~3 days after scaling and don’t drink beverages containing coloring, such as coffee and tea. (2) Don’t eat too cold, too hot, stimulating food after cleansing. (3) If you receive treatment after local anesthesia, you can eat only after the anesthesia effect disappears about 2 hours after the treatment. 2. Maintenance of oral hygiene: learn the correct way of brushing and flossing after scaling to maintain good oral hygiene and follow the doctor’s instructions for regular follow-up to avoid recurrence of periodontal diseases.