Staying up late is not particularly bad for the teeth in most cases, but for some teeth with chronic inflammation, it may induce acute pulpal inflammation. Therefore, once the phenomenon of staying up all night occurs, it is possible to induce nerve sensitivity, which may cause tooth pain, such as intense wisdom tooth pericoronitis and pulp inflammation, which may cause pain phenomenon. In addition, staying up late may cause fire, or lead to inflammation, redness, swelling and pain in the soft tissues of the gums, mostly due to the decline in resistance caused by the occurrence of localized phenomena. Therefore, once such a problem occurs, it is necessary to take certain tests for judgment in order to effectively reduce the problems caused by its irritating lesions. Therefore, staying up late may have some damage to the teeth, but the problem should not be particularly serious in individual cases.