Shear bond strength of different types of luting cements to an aluminum oxide-reinforced glass ceramic core material.
OBJECTIVE
The aim of this study was to find the optimal choice of luting cement to Synthoceram, an aluminum oxide-reinforced glass ceramic material. The bond strength of five different commercial luting cements to the ceramic material was evaluated. The effect of surface treatments, etching, sandblasting, silanizing, and combinations of these treatments was also investigated.


METHODS
Shear bond strength tests were performed using the ceramic material as substrate with each of the luting cements. Cements rods were prepared on pre-treated ceramic surfaces. The shear bond strength was determined 24 h after cementation. The effect of surface treatments: etching, sandblasting, and sandblasting followed by etching, respectively, on the morphology of the material, was investigated with SEM.


RESULTS
The shear bond strength increases significantly from Ketac Cem, Rely X Luting, Fuji Plus, Panavia F to Xeno Cem. The surface treatments etching and/or sandblasting followed by silanization generally provide the highest bond strength values.


CONCLUSIONS
Based on the results of this study, the use of resin composite based cements is preferred for cementation of an all-ceramic restoration with an aluminum oxide-reinforced glass ceramic base. Surface treatment of etching and/or sandblasting followed by silanization is recommended.
Begazo
Catherine C
CC
Department of Dental Material Science, ACTA, Louwesweg 1, 1066 EA, Amsterdam, The Netherlands.
de Boer
Hielke D
HD
Kleverlaan
Cornelis J
CJ
van Waas
Marinus A J
MA
Feilzer
Albert J
AJ
D000537:Aluminum Oxide; D002516:Ceramics; D020770:Compomers; D003188:Composite Resins; D001840:Dental Bonding; D045662:Dental Etching; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D005899:Glass Ionomer Cements; D008277:Magnesium Oxide; D008422:Materials Testing; D008689:Methacrylates; D011076:Polycarboxylate Cement; D019279:Resin Cements; D033081:Shear Strength; D012821:Silanes; D013499:Surface Properties; D015034:Zinc Oxide
C112274:Clearfil Liner Bond 2; D020770:Compomers; D003188:Composite Resins; C113301:FujiPlus; D005899:Glass Ionomer Cements; D008689:Methacrylates; C438843:Panavia-Fluoro; D011076:Polycarboxylate Cement; D019279:Resin Cements; D012821:Silanes; C084550:Vitremer; C417842:Xeno compomer; D003776:Dental Porcelain; D008277:Magnesium Oxide; C023506:Glass ceramics; C040235:Ketac-cem; D000537:Aluminum Oxide; D015034:Zinc Oxide