The process of dental filling includes oral examination, program development, cavity preparation, filling, and nursing rehabilitation. 1. Dental fillings should first undergo a thorough oral examination, under the guidance of the dentist for a comprehensive understanding of the patient’s oral health status, especially the number of caries, location, size. 2. Then according to the patient’s caries and the hardness of the teeth itself to develop a filling restoration program, including the cavity production methods and filling materials selection and so on. 3. Cavity preparation is an extremely important step to remove all the diseased tissues and to protect the shape of healthy teeth and protect the dental pulp to establish good retention and resistance. After the cavity is prepared, it should be fully sterilized to prevent secondary caries. 4. The filling material is prepared and filled into the cavity, and the shape is sculpted in time, and the filling height of the occlusal surface is adjusted to prevent subsequent occlusal injury. 5. Finally, we need to do a good job of follow-up care and rehabilitation, filling parts of the surface of the good grinding and polishing, and do a good job of cleaning in the mouth, to prevent residues caused by infection and secondary caries. After filling the teeth patients also need to pay attention to oral hygiene, do a good job of regular review, if any special circumstances in a timely manner to seek medical treatment.