"Influence of Filler Type of Preheated Composite Resin on Microtensile Bond Strength and Film Thickness When Used for Adhesive Cementation: An In Vitro Study"

Thirteen class II cavities were prepared in premolars, and pressed lithium disilicate inlays were looted with 2 different preheated composite resins: nanohybrid and microhybrid; a dual-polymerized resin cement was used as the control. The cement film thickness was measured by confocal microscopy, and the quality of the bonded interface by scanning electron microscopy. Ceramic disks of preheated composite resins were used to measure the μTBS.