جلد 12، شماره 3 - ( 8-1402 )
جلد 12 شماره 3 صفحات 42-34 |
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sadeghi deh baneh Y, tavangar S M, hosseini basti H A, Farmanbar R, jafari S. Research Paper: Effect of metal primer and adhesives on bond strength of composite resin to nickel-chromium alloy. Journal title 2023; 12 (3) :34-42
URL: http://3dj.gums.ac.ir/article-1-588-fa.html
URL: http://3dj.gums.ac.ir/article-1-588-fa.html
Research Paper: Effect of metal primer and adhesives on bond strength of composite resin to nickel-chromium alloy. عنوان نشریه. 1402; 12 (3) :34-42
چکیده: (243 مشاهده)
Introduction: Indirect metal-ceramic restorations can be repaired intra-orally by using composite resins. The purpose of this study was to evaluate the effect of several adhesives and metal primer on shear bond strength(SBS)of flowable composite to nickel-chromium(Ni-Cr) alloy.
Materials and Methods: In this in vitro study, 100 Ni-Cr alloy specimens were casted measuring 2x10x8 mm. The surface of all specimens was sandblasted, and they were randomly assigned to five groups (n=20) of no primer or adhesive (group 1 or control),alloy primer (AP; group 2), AP+Single Bond 2 (SB2) adhesive (group 3),AP+G-Premio Bond (group 4), and G-Premio Bond alone (group 5).Flowable composite was bonded to the surfaces in cylindrical plastic molds (3 mm in diameter and height). The specimens were stored in distilled water at room temperature for 24 hours. Thermocycling was performed for 1000 cycles. The SBS was measured by a universal testing machine. Failure mode was also evaluated under a stereomicroscope.
Results: The SBS of composite to alloy was the highest in G-Premio group (20.09±14.27MPa), and the lowest in the control group (11.11±5.35MPa). The failure mode in the four experimental groups was mainly mixed while the control specimens showed adhesive failure(P≤0.05).
Conclusion: It maybe concluded that G-Premio universal adhesive can create a strong bond to Ni-Cr alloy.
Materials and Methods: In this in vitro study, 100 Ni-Cr alloy specimens were casted measuring 2x10x8 mm. The surface of all specimens was sandblasted, and they were randomly assigned to five groups (n=20) of no primer or adhesive (group 1 or control),alloy primer (AP; group 2), AP+Single Bond 2 (SB2) adhesive (group 3),AP+G-Premio Bond (group 4), and G-Premio Bond alone (group 5).Flowable composite was bonded to the surfaces in cylindrical plastic molds (3 mm in diameter and height). The specimens were stored in distilled water at room temperature for 24 hours. Thermocycling was performed for 1000 cycles. The SBS was measured by a universal testing machine. Failure mode was also evaluated under a stereomicroscope.
Results: The SBS of composite to alloy was the highest in G-Premio group (20.09±14.27MPa), and the lowest in the control group (11.11±5.35MPa). The failure mode in the four experimental groups was mainly mixed while the control specimens showed adhesive failure(P≤0.05).
Conclusion: It maybe concluded that G-Premio universal adhesive can create a strong bond to Ni-Cr alloy.
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