ICON Resin Infiltration
Icon (Resin Infiltration of White-Spot Lesions)
What is Icon?
Resin infiltration is a minimally invasive restorative treatment for post-ortho white-spot lesions (WSLs) and certain congenital hypocalcified enamel lesions (“hypo” spots). WSLs are associated with subsurface enamel porosities caused by a periodic imbalance between demineralization and remineralization of the enamel, resulting from poor hygiene and associated plaque, bacteria and acids. Over time, the associated plaque, bacteria and acids build up and lead to the lesions because the remineralization at the outer surface of the tooth decreases the access of calcium and other ions to deeper portions of the enamel.
The reason behind the white color is because there is a scattering of light at the subsurface of the demineralized enamel. Hypo spots, or enamel bruising, are congenital enamel defects often caused by trauma or infection involving the primary teeth.