Bonding stability of universal adhesives to feldspathic ceramic with or without prior silane application

Purpose This study aimed to assess the bonding stability of three universal adhesives to a CAD‐CAM feldspathic ceramic with or without prior silane application. Materials and Methods The universal adhesives tested were Ambar Universal (FGM), Single Bond Universal (3M), and Ybond Universal (Yller). Scotchbond Multipurpose Plus (3M) was used as a control. The silane used was RelyX Ceramic Primer (3M). Microtensile bond strength (μTBS) to Vitablocs Mark II was measured after 24 h or 6 months of water aging (n = 20). Failure modes were observed through scanning electron microscopy, and pH and degree of C=C conversion (DC) of the adhesives were measured (n = 3). Data were analyzed using one‐, two‐, and three‐way ANOVA. Results The pH values differed significantly among the adhesives (p