Effect of resin luting cement polymerisation mode and high powered polymerisation unit type on shear bond strength of leucite reinforced full ceramic system to dentine

WOS: 000290848000004This in vitro study evaluated the effects of light polymerised (LP) and dual polymerised (DP) modes of a resin luting cement polymerised with different high powered polymerisation units on the shear bond strength of a leucite reinforced full ceramic system to dentine. Ceramic specimens (n=15) were bonded to dentine surfaces with a resin luting cement (Variolink II) in either LP or DP mode and polymerised according to one of four polymerisation profiles as follows: control group: 600 mW cm(-2) conventional halogen light, 40 s; light emitting diode polymerisation unit group: 1500 mW cm(-2) light emitting diode, 10 s; plasma arc curing (PAC) polymerisation unit 10 s group: 1370 mW cm(-2) PAC, 10 s; and PAC 3 s group: 1370 mW cm(-2) PAC, 3 s. Bond strength (MPa) data were analysed using two-way analysis of variance and Duncan's test (alpha=0.05). Polymerisation mode (p<0.01), type of light unit (p<0.01) and the interactions between the two were statistically significant (p