If children have dental caries, it is crucial to treat them actively, even if the caries are on primary teeth, timely repair is necessary. Once a child's teeth begin to erupt, it is important to start brushing their teeth and maintaining good oral hygiene. If caries have already developed, take the child to a pediatric dental clinic for tooth repair. This is especially true for the back molars, which, even though they may be replaced at the age of six, still need to be repaired throughout the process. Otherwise, it will affect the eruption and alignment of the permanent teeth later on. Therefore, if children develop dental caries, it is essential to visit a hospital as soon as possible for dental treatment, and once all the molars are in place, fissure sealants should be applied.