Comparative evaluation of effect of resin modified glass ionomer varnish and resin infiltrant on incipient carious lesions in primary teeth :A Randomised Controlled Trial

Dental caries is a major public health concern commonly afecting children in their early childhood.It has a negative impact on childrens oral as well as general health. Special attention has been devoted to early incipient carious lesions, with maximum preservation of tooth structure. This is mainly because restorative therapy for interproximal lesions requires removal of a substantial amount of sound tissue and this brings tooth into a circle of treatment and retreatment. Therefore, early detection and treatment of such lesions will limit the need for invasive treatment in the future.

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.

Hence this study focusses to clinically assess the efficacy of the Resin modified glass ionomer varnish versus Resin infiltrant on incipientcarious lesion.