Infiltration Concept  is a relatively new resin product developedin Germany and used in the treatment of incipient lesions. It improves the retention and prevents caries on smooth surfaces, but not pit and fissure surfaces.Resin infiltration is a micro-invasive method that fills the incipient lesion pores via capillary action , which blocks further diffusion of the bacteria by creating barriers and stops lesion development, restoring the tooth without anaesthesia and drilling to preserve the natural anatomy of the tooth form. It infiltrates the lesion, make the bacteria inactive and prevents caries progression compared to the sealant which only work as mechanical barrier between the tooth structure and the oral environment.

Fluoride varnishes are effective in preventing caries and their administration is the method of choice to prevent demineralization, as well as to enhance the remineralization of non-cavitated carious lesions.Resin modified glass ionomer varnish is a site specific, light cured durable, fluoride releasing coating that provides an immediate layer of protection to relieve dentinal hypersensitivity, creates a barrier against demineralization and acid erosion and helps repair demineralized enamel adjacent to the coating.