PMID- 21935515 OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - J Adhes Dent JT - The Journal of Adhesive Dentistry IS - 1757-9988 (Electronic) IP - 2 VI - 14 PST - ppublish DP - 2012 PG - 147-154 LA - en TI - Effectiveness of the Bond Established Between Ceramic Inlays and Dentin Using Different Luting Protocols LID - 10.3290/j.jad.a22093 [doi] FAU - Rathke, Andreas AU - Rathke A FAU - Hokenmaier, Gerd AU - Hokenmaier G FAU - Muche, Rainer AU - Muche R FAU - Haller, Bernd AU - Haller B CN - OT - ceramic-to-dentin bond OT - luting system OT - light curing OT - dual curing OT - precuring OT - bonding effectiveness AB - Purpose: To evaluate the ceramic-to-dentin bond following luting with light- and dual-curing resin composites using different adhesive techniques. Materials and Methods: Dentin surfaces from 160 human molars were ground flat and randomly divided into eight groups (n = 20). Vita Mark II ceramic disks measuring 2 and 4 mm in thickness were bonded to the dentin with one of the following luting systems: Syntac/Tetric Ceram (ST), Syntac/Variolink II (SV), OptiBond Solo Plus/ Prodigy (OP), OptiBond Solo Plus/Nexus 2 (ON). Two different irradiation times (60 s, 120 s) were used per luting system, each without (-PC) and with (+PC) precuring the respective adhesive layer. After storage in water for 24 h at 37°C, the bonded specimens were sectioned perpendicularly to the adhesive interface into 1-mm-thick sticks. Three sticks per specimen were loaded to failure under tension in the Zwicki 1120. Failure analysis was performed using a scanning electron microscope (SEM). Results: Four-way ANOVA showed that the ceramic thickness, the type of luting system used, and the adhesive precuring had a significant effect on the microtensile bond strength. The longer irradiation times did not significantly increase the bond strength. The highest values were recorded with SV/+PC (27.9 ± 4.3 MPa) and the lowest with ST/-PC (10.2 ± 3.5 MPa). Under the SEM, failed specimens that had not been precured showed significantly more exposed dentin than those which had been precured (chi-square test). Conclusion: The precuring step of light-curing bonding systems and the use of dual-curing luting composites were shown to optimize the dentin bond under thick ceramic layers. AID - 842968