Hirunnopcharoen , T., W. Prapansilp, and P. Rirattanapong. “Effect of fluoride-containing resin sealant on the subsurface enamel microhardness of artificial incipient caries lesions: An in vitro study”. Mahidol Dental Journal, vol. 43, no. 2, Aug. 2023, pp. 87-96, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/263892.