After ultrasonic scaling, it is important to pay attention to oral hygiene, because after ultrasonic scaling, the gums will temporarily bleed in small amounts, and if the oral hygiene is not good at this time, it is likely to cause mild infection. After ultrasonic scaling, you should pay attention to your diet not to eat too acidic or spicy stimulating food, and eat mainly liquid or semi-liquid food, because after scaling, your teeth will be in a temporary sensitive state, and will be more sensitive than usual to cold, hot, sour and sweet stimuli. After the cleaning, chewing should be done as little as possible, so you should eat soft and rotten food.