A big hole in the tooth needs to be treated according to the severity of the damage, which can be treated with filling or root canal, and extraction may be needed if necessary. 1. Filling treatment, if the tooth is rotten and does not stimulate the pulp, you can generally choose to carry out filling treatment, such as resin filling, filling the decayed area can effectively alleviate the symptoms. 2. Root canal treatment, if the caries is more serious, has damaged the pulp, pulpitis or periapical periodontitis and other diseases, you may need to carry out root canal treatment in time, to remove the harmful substances inside the root canal, and then fillings. 3. Extraction treatment, if the damage is more serious, there is no need to retain, you can choose the right time for extraction treatment. Normally, it is better not to eat spicy and stimulating food often, and need to do a good job of oral cleaning.