There are no absolute dietary contraindications after root canal treatment, but you should avoid eating too hard, too hot, too cold, too spicy irritating foods to avoid delaying the dissipation of inflammation.
Avoid eating too hard food during root canal treatment, the pressure of biting too hard will cause different degrees of irritation to the root tip, causing pain as well as inflammatory reaction in the root tip, and biting too hard will easily lead to dislodgement of the filling material on the surface of the tooth, and then the food residue will enter into it, triggering the secondary infection of the root canal system.
Secondly, it is important to avoid too hot or too cold or spicy irritating foods, which may stimulate the pulpal nerve causing pain. It is recommended to choose fluffy and mild foods during root canal treatment, and also pay attention to maintaining clean oral hygiene so that food debris in the mouth will not induce inflammation again.