In children's dentistry, filling materials are used that contain fluorine (glass ionomer materials), which prevents the development of secondary caries (caries that occur under an existing filling). They are both photopolymer and composite.

A composite filling is a filling that is made of polymer resin with the inclusion of quartz powder, which gives the filling additional strength and is necessary to isolate the sensitive tissues of the tooth and prevent microbes from entering the cavity.

Most often, compomer seals are used for sealing - a hybrid of vitreous and composite material. Compomer filling is durable, it is used for the restoration and restoration of teeth with minor carious damage, milk teeth, as well as those that do not have a significant chewing load. Specially for children, colored seals were developed, which children like very much. The child can independently choose his favorite color. The color compomer has a safe composition, is plastic and easy to use, durable, able to absorb fluoride and give it to the tooth, helping to preserve its health. Such fillings help preserve baby teeth, which help the child chew food, but also hold space for future permanent teeth. It is important to know that the removal of milk teeth earlier can cause the teeth to become bored and there will be no room for permanent teeth, which leads to orthodontic problems.