ld caulk

The term pit and fissure sealant (PFS) is used to describea material, i.e., introduced into the occlusal pits and fissures of caries-susceptible teeth, thus forming a micromechanically bonded, protective layer cutting access ofcaries producing bacteria from their source of nutrients.1Buonocore’s classic study of 1955 marked the startof a major revolution in the clinical practice of…