Painful biting of hard things after dentures need to actively seek medical examination, according to the different reasons for jaw adjustment, root canal treatment, extraction, remodeling and so on. 1. Jaw adjustment or remodeling: If the pain of biting something hard is caused by the denture being too high, when the height is not obvious, it is necessary to adjust the jaw to restore normal occlusion; when the height is high, it may be necessary to remove the denture and remodel it. 2. Root canal treatment: If the pain of biting hard things is caused by the inflammation of the root inside the denture, you need to actively seek medical treatment for root canal treatment, and then remake the denture after the inflammation subsides. 3. Extraction: If the root of the tooth that is painful to bite something hard has been split, or the root inflammation is so severe that the tooth loses its preservation value, then the tooth needs to be extracted and restored at a later date. It is recommended to consult a doctor in case of abnormalities.