Methylene Blue Penetration of Resin Infiltration and Resin Sealant in Artificial White-Spot Lesions.

 Both the resin infiltration approach and the resin sealant seem to help seal AWL and might perhaps offer long-term defense against microleakage in AWL caused by methylene blue penetration. The greatest sealing and defense for microleakage in AWL were demonstrated by the resin infiltrations.