There are no absolute dietary contraindications after root canal treatment, but only soft, light and easy to chew during the initial period of root canal treatment. 1. After root canal treatment, the diet needs to ensure that the food is soft and not too hard; at the same time, it also needs to pay attention to ensure that the food is light and not to eat spicy and stimulating food, including pepper, chili peppers, ginger, scallions and so on. At the same time, you also need to meet the food easy to chew, try not to eat particularly sticky food, so as not to stick to the tooth, resulting in tooth loss, cracked. 2. After root canal treatment, it is recommended to eat more fluids or semi-fluids, such as rice porridge, rice paste, vegetable soup, milk and so on. After root canal treatment, you need to pay attention to the above points in terms of diet, in addition to paying attention to oral hygiene to reduce secondary infection. During the period, regular checkups should be conducted to understand the recovery situation, and those who have not recovered well should be treated at a later stage.