MARK3 Pit & Fissure Sealant with fluoride is a light cure, resin-based Pit & Fissure Sealant that contains 50% nano sized fillers. The hard setting, wear resistant material has an ideal flowable viscosity for maximum coverage and protection to seal the pits and fissures of teeth susceptible to caries. The fluoride assists in caries prevention and the inhibition of enamel demineralization. The syringe needle tips allow for quick and accurate placement of the material.