Self-etching adhesives improve the shear bond strength of a resin-modified glass-ionomer cement to dentin.
OBJECTIVE
Despite the improvements of resin-modified glass-ionomer cements, the dentin bond strength of these materials remains inferior to that provided by "bonding system/composite" combinations and limits the clinical use of RMGIC. The objective of this in vitro study was to investigate the effect of new self-etching bonding systems on the adhesion to dentin of Fuji II LC.


METHODS
Seven recent self-etching systems were studied (Clearfil SE Bond = CSE, Optibond Solo Plus Self-Etching Primer = OSP, One Up Bond F = OUP, Mac Bond II = MB2, Xeno III = XB3, ADPER Prompt-L-Pop = ADP, Unifil Bond = UB) and compared with Cavity Conditioner (C). After the bonding procedure, a resin-modified glass-ionomer cylinder (Fuji II LC) was bonded to the surface using a Teflon mold (diameter: 3 mm; height: 5 mm). The different specimens were tested in a shear bond mode (0.5 mm/min). Statistical analyses were performed with one-way ANOVA and Fischer PLSD test (p < 0.05).


RESULTS
The one-way ANOVA revealed a significant influence of the surface treatment parameter (p < 0.0001). The lowest shear bond strength values were obtained with Cavity Conditioner. The highest values were obtained with MB2. The multiple comparisons revealed that ADP = OBP = XB3 = OUB = UB = CSE and that UB = CSE = MB2.


CONCLUSIONS
The application of the 7 self-etching adhesives tested in this study improves the dentin shear bond strengths of Fuji II LC. This increase depended on the adhesive system and ranged from 50% for ADP up to 130% for MB2.
Besnault
Catherine
C
Department of Biomaterials, Faculté de Chirurgie Dentaire, Université de Paris V, France.
Attal
Jean-Pierre
JP
Ruse
Dorin
D
Degrange
Michel
M
D000180:Acrylic Resins / Q000737:chemistry; D000704:Analysis of Variance; D020770:Compomers / Q000737:chemistry; D001840:Dental Bonding; D003804:Dentin / Q000648:ultrastructure*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry*; D012117:Resins, Synthetic / Q000737:chemistry; D033081:Shear Strength
D000180:Acrylic Resins; C438313:Clearfil SE Bond; D020770:Compomers; D017220:Dentin-Bonding Agents; C079765:Fuji II LC cement; D005899:Glass Ionomer Cements; C452442:Mac Bond II; D008689:Methacrylates; C446260:One-Up-Bond F; C451600:OptiBond Solo Plus; C408584:Prompt L-Pop; D019279:Resin Cements; D012117:Resins, Synthetic; C407402:Unifil Bond; C417842:Xeno compomer; C006903:carbopol 940