The choice of material for dental fillings is based on its indications and the location of the fillings as well as the tooth position, there is no which is better, the material for dental fillings can be divided into silver amalgam, light-curing resin, glass ionomer as well as composite resin material.
1. Silver amalgam was commonly used about 20 years ago, but it has been gradually eliminated in China due to easy microleakage, but it is still commonly used in foreign countries such as Japan.
2. Light-curing resin is the most commonly used material nowadays, which has strong advantages in terms of hardness, saturation, tightness and aesthetics; however, it needs to be cooperated in operation, so it is commonly used for adults, and is less used for children. The reaction of polymerization and shrinkage of light-curing resins is also one of the disadvantages of the material. Cavities close to the pulp cannot be filled directly with resin.
3. Glass ionomer is commonly used in children because it releases fluorine when filling, which is beneficial to the prevention of caries, but it is inferior to resin in terms of aesthetics, hardness, and tightness.
4. Composite resin material is a resin material that combines the characteristics of resin material and glass ionomer, and its clinical application requires a lot of clinical research.
Consult your physician for advice on which material to use for fillings.