Tyagi S, Thomas AM, Sinnappah-Kang ND. A comparative evaluation of resin- and varnish-based surface protective agents on glass ionomer cement – a spectrophotometric analysis. BIiD [Internet]. 2023 Dec. 24 [cited 2026 May 21];7(1). Available from: https://medicaljournalssweden.se/biid/article/view/35308