You can eat and lick your teeth after 1 hour. Don't eat cold, hot, sour, sweet, too hard and spicy food when eating, because dentin allergy may occur just after washing your teeth.

Within half a month after tooth cleaning, don't eat heavy-colored foods, such as coffee, soy sauce, vinegar, cola, etc., because the teeth that have just been washed are rough, and these foods are easy to discolor your teeth that have just been washed.

Always rinse your mouth with mouthwash after tooth washing, and brush your teeth with toothpaste after meals, which will help to protect the white teeth after washing.