Effect of dentin treatment with citric acid/ferric chloride solutions on glass ionomer bond strength.
OBJECTIVE
To investigate the effect of dentin treatment with mixed solutions of citric acid and ferric chloride on the tensile bond strength of resin-modified glass ionomers.


METHODS
120 freshly extracted bovine incisors were ground to expose dentin surface. Vitremer and Fuji II LC were bonded to dentin surfaces that were (1) rinsed with distilled water and dried with oil-free compressed air, (2) treated with Super Bond Dentin Activator for 30 seconds, (3) treated with Bondwell LC Conditioner for 20 seconds, (4) treated with Scotchbond Multi-purpose Etchant for 15 seconds, (5) treated with Dentin Conditioner for 20 seconds, or (6) treated with K-etchant for 40 seconds following manufacturers' recommendations. Specimens were stored in water at 37 degrees C for 24 hours. The tensile bond strength was measured at a crosshead speed of 0.5 mm/minute. The data were statistically analyzed by a one-way ANOVA and Dunnett's Post-hoc Procedure (P < 0.05).


RESULTS
Super Bond Dentin Activator and Bondwell LC Conditioner increased the tensile bond strength of Vitremer and Fuji II LC. Scotchbond Multi-purpose Etchant, Dentin Conditioner, and K-etchant did not improve the tensile bond strength of Vitremer and Fuji II LC.
Terata
R
R
Department of Operative Dentistry and Endodontics, School of Dentistry, Iwate Medical University, Japan.
Nakashima
K
K
Yoshinaka
S
S
Kubota
M
M
D000134:Acid Etching, Dental / Q000379:methods; D000180:Acrylic Resins; D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D002712:Chlorides; D019343:Citric Acid / Q000494:pharmacology; D003188:Composite Resins; D001840:Dental Bonding / Q000379:methods; D003804:Dentin / Q000187:drug effects*; D005290:Ferric Compounds / Q000494:pharmacology; D005899:Glass Ionomer Cements; D008298:Maleates; D008422:Materials Testing; D010756:Phosphoric Acids; D012117:Resins, Synthetic; D013718:Tensile Strength
D000180:Acrylic Resins; D002712:Chlorides; D003188:Composite Resins; D005290:Ferric Compounds; C079765:Fuji II LC cement; D005899:Glass Ionomer Cements; D008298:Maleates; D010756:Phosphoric Acids; D012117:Resins, Synthetic; C084550:Vitremer; D019343:Citric Acid; C006903:carbopol 940; C030272:maleic acid; C030242:phosphoric acid; C024555:ferric chloride