Compatibility of One Universal Adhesive With Various Self-curing Resin Cements
Objectives: To evaluate shear bond strength (SBS) on bovine dentine / enamel in accordance with ISO 16506 using a new All-in-One adhesive iBOND® Universal™ (IBU) (Kulzer GmbH) in combination with various adhesive resin cements Kuraray Panavia V5™ (KP), Ivoclar Variolink Esthetic™ (VE) and Kulzer Experimental ™ (KE) in self-cure mode compared to the self-adhesive 3M Relyx Unicem 2™ (RU) cement. Methods: Bovine incisors were halved and embedded in resin (n=5 dentine / enamel). A standard dentine / enamel surface was prepared by grinding with silicon carbide abrasive paper with a grit size of P120 and P400 under running water. IBU was applied in self etch mode according to instructions for use and light cured (Translux® Wave, Kulzer GmbH). Composite cylinders (Venus® Diamond ™) were luted on top of the bonded specimens using the different adhesive resin cements. The cements were used according to manufacturer specifications. The self-adhesive control cement RU was used directly on the tooth surface according its instructions for use. Specimens were stored for 40 minutes under load and another 90 minutes without loading (37°C) for self-curing. The specimens were then stored at 37°C for 24h in water. SBS was tested after 24h or after additional thermo-cycling to simulate aging (5000 cycles between 5°C/55°C with 30s dwell time). Results: One-way ANOVA determined that there was a statistically significant difference between groups (p = <0.0001). RU was statistically significantly when compared to the other groups. There was no statistically significant difference between RU and KP in the enamel after 24h. Conclusions: IBU was consistently compatible with all adhesive resin cements tested with no adverse effects detected. KE resin cement performance was similar to VE and KP. RU without adhesive performed lower. Further testing is needed.