Barjaktarova-Valjakova, E.; Grozdanov, A.; Guguvcevski, L.; Korunoska-Stevkovska, V.; Kapusevska, B.; Gigovski, N.; Mijoska, A.; Bajraktarova-Misevska, C. Acid Etching As Surface Treatment Method for Luting of Glass-Ceramic Restorations, Part 1: Acids, Application Protocol and Etching Effectiveness. Open Access Maced J Med Sci 2018, 6, 568-573.