Tooth filling: a method of repairing tooth defects with artificial substances. The substance used for repair is called filling material. Any tooth tissue defect caused by dental caries, wedge defect, trauma, etc. It needs to be repaired to restore its shape and function. When the lesion has spread to the pulp and even caused periapical diseases, the pulp should be treated first, and then the teeth should be filled. Before filling the teeth, the dentist will conduct a comprehensive examination of the patient's oral cavity, make a comprehensive understanding of the patient's oral health and make appropriate treatment, and formulate the best filling and restoration plan according to the number, treatment site and pathological degree of the patient's dental caries. Precautions for filling teeth Precautions: Filling teeth can make teeth beautiful and rotten holes will be removed. After filling the teeth, there will be no more dental plugs when eating, but the only thing that patients may not pay attention to is that they think there will be no more cavities and rotten teeth after filling the teeth. In fact, the oral environment itself has not changed after filling teeth. This bad oral environment is the root of your tooth decay growth. However, filling teeth does not change the oral environment. Therefore, what should be done after filling teeth is to pay attention to oral hygiene and brush your teeth in the morning and evening to achieve an acid-base balance in the oral environment, so that the occurrence of tooth decay will be greatly reduced. Some drugs can also be used to improve the acid-base balance of oral environment, such as watermelon frost.