The best treatment for dental caries is to prevent the emergence of dental caries in the early stage, and to repair it in the later stage according to the different degree of damage. 1. Worm teeth clinically known as dental caries, refers to dental bacteria erosion of dental tissues, resulting in different degrees of defects in dental tissues. To prevent the emergence of dental caries, you can try to apply fluoride or fissure sealing, are conducive to prevent the emergence of dental caries. 2. When enamel destruction occurs in the early stage of dental caries, you can try to use dental filling materials such as composite resin and glass ionomer to repair it. 3. If the insect tooth develops to the dentin and pulp area, direct repair is easy to cause pain. It is recommended to use composite materials to repair the tooth after root canal treatment, and then carry out crown restoration. Specific treatment is recommended for authoritative hospitals.