Vulcanization Vulcanization is the application of a material (a synthetic organic polymer resin that is harmless to the human body and can also be self-coagulating) to the cross-shaped grooves of the teeth, which penetrates into the grooves on the surface of the teeth in a liquid state and is cured by light. It is like putting a protective coat on the teeth to protect them from food erosion. Fissure sealing, also known as point and fissure sealant (pit and fissure sealant), refers to the occlusal surface without removing the dental tissues, coated with a layer of adhesive resin, to protect enamel from bacteria and metabolites erosion, and enhance the tooth’s caries-resistant ability to prevent caries, thus achieving the prevention of caries, an effective caries prevention method. Established by Xu, Department of Stomatology, Jinan Military Region General Hospital.