When a large tooth is about to fall out but does not, the patient needs to have it extracted in a timely manner, and the patient also needs to pay more attention to daily care. Usually when a large tooth is about to fall out but does not fall out, it needs to be extracted in order to avoid affecting the normal bite. If the tooth loss is caused by tooth replacement, it is also necessary to avoid affecting the eruption of teeth. In the case of tooth loss in adults, most of them have periodontal disease, and the patients need to take care of themselves on a daily basis after the teeth are extracted. Usually, patients need to pay more attention to oral hygiene, diligent brushing, and regular oral examination. Patients also need to actively regulate their diets and consume more fresh fruits and vegetables to ensure adequate intake of vitamins and calcium. At the same time, patients usually need to use their teeth reasonably, eat less hard food, to avoid excessive stress on the teeth, so as to avoid the recurrence of tooth loss. It is recommended that patients with a large tooth that is about to fall out but does not fall out, strictly under the guidance of the doctor to take reasonable treatment measures.