The better dental filling materials are: i. Composite resin, in the anterior teeth and other parts that require a higher degree of aesthetics, can be filled with photosensitive curing resin. Before operation, you can compare the color of natural teeth, select the corresponding color composite resin, and then polish it after curing, so that the surface of the filling is bright and clean; second, silver amalgam is suitable for the posterior area of the teeth with high biting force, due to the high wear resistance of the alloy, the use time can be more than 10 years; third, glass ion water cement is a powder-liquid hybrid filling material, which can continuously release fluoride ions, promote enamel remineralization, enhance the tooth It is suitable for filling the cervical part of the tooth and the adjacent surface and other parts with high requirements for adhesion.