Icon offers a new approach to counteracting incipient caries early without sacrificing healthy hard tissue – in only one sitting, simple, and without drilling or anesthesia. The intelligent principle: Driven by capillary forces, the infiltrant, a highly fluid resin, penetrates into the enamel caries and blocks the diffusion paths for cariogenic acids, thus promoting the early arrest of caries in difficult-to-reach proximal areas and on smooth surfaces. Without drilling. Icon closes the gap between preventative therapies and corrective restorations.