Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs

Melo, Marco Aurélio Veiga de; Moysés, Marcos Ribeiro; Santos, Saulo Galvão dos; Alcântara, Carlos Eduardo Pinto; Ribeiro, José Carlos Rabelo

doi:10.1590/s1806-83242011000600003

Cited by 32 publications

(24 citation statements)

References 14 publications

(19 reference statements)

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“…The effect of sandblasting may be attributed to an increase in the micromechanical retention that elevates the capability of the added bis-acryl resin to interlock mechanically onto the old resin. These results are in close agreement with many investigations reporting improved bond strengths when the filling composite resin was sandblasted before repair [5,7,9,11]. The findings of the current study demonstrate the importance of sandblasting and micromechanical retention in the bis-acryl temporary resin repair.…”

Section: Discussionsupporting

confidence: 92%

“…Many methods have been introduced for modification of a filling composite resin surface: sandblasting, roughening with diamond instrument, abrasive papers, and acid etching [5][6][7]. Several studies have demonstrated that the application of chemical agent, such as bonding agent or silane coupling agent, enhances the bond strength [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Improving shear bond strength of temporary crown and fixed dental prosthesis resins by surface treatments

Kim

Lee

et al. 2015

J Mater Sci

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This study evaluated the effect of surface treatments on the bond strength of repaired temporary resins. One-hundred flat-surfaced cylindrical specimens (Ø 7 mm 9 12 mm) of each temporary resin (2 bis-acryl resins and 2 polymethyl-methacrylates) were prepared. The specimens were randomly divided into 10 groups (n = 10), according to the types of surface treatments: untreated, adhesive treated, silanated, silane ? adhesive treated, hydrofluoric acid etched, laser treated, sandblasted, sandblasting ? adhesive treated, sandblasting ? silanated, and tribochemical silica coating ? silanated. Each resin material of the same brand with cylindrical shape (Ø 3 mm 9 3 mm) was polymerized onto the resin surfaces, and specimens were stored for 24 h in distilled water. The shear bond strengths were measured and failure modes were examined. All data were analyzed with a one-way ANOVA and multiple comparison Scheffé post hoc test (a = 0.05). For bis-acryl resins, the highest shear bond strength was observed in sandblasted group and the lowest was observed in the control group. Results show that the repair bond strength was improved for bis-acryl resin by 23 % than that of the control group due to the increase in surface roughness by sandblasting. However, chemical treatment did not improve repair bond strength. The surface treatment of bis-acryl resins with sandblasting seems to be promising for the improvement of repair bond strength.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Improving shear bond strength of temporary crown and fixed dental prosthesis resins by surface treatments

Kim

Lee

et al. 2015

J Mater Sci

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“…Several surface pretreatment protocols have been evaluated to improve the bond strength of repairing composite resin to old one after acid-etching and silane application 13-16. The results of these previous studies indicate that composite pretreatments might improve the repair bond strengths.…”

Section: Introductionmentioning

confidence: 99%

Bond strength of self-adhesive resin cements to composite submitted to different surface pretreatments

et al. 2014

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ObjectivesExtensively destroyed teeth are commonly restored with composite resin before cavity preparation for indirect restorations. The longevity of the restoration can be related to the proper bonding of the resin cement to the composite. This study aimed to evaluate the microshear bond strength of two self-adhesive resin cements to composite resin.Materials and MethodsComposite discs were subject to one of six different surface pretreatments: none (control), 35% phosphoric acid etching for 30 seconds (PA), application of silane (silane), PA + silane, PA + adhesive, or PA + silane + adhesive (n = 6). A silicone mold containing a cylindrical orifice (1 mm2 diameter) was placed over the composite resin. RelyX Unicem (3M ESPE) or BisCem (Bisco Inc.) self-adhesive resin cement was inserted into the orifices and light-cured. Self-adhesive cement cylinders were submitted to shear loading. Data were analyzed by two-way ANOVA and Tukey's test (p < 0.05).ResultsIndependent of the cement used, the PA + Silane + Adhesive group showed higher microshear bond strength than those of the PA and PA + Silane groups. There was no difference among the other treatments. Unicem presented higher bond strength than BisCem for all experimental conditions.ConclusionsPretreatments of the composite resin surface might have an effect on the bond strength of self-adhesive resin cements to this substrate.

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“…Although the use of acid does not require an additional device in the dental practice, such as chair-side air abrasion equipment 18 , surface treatment with 37% phosphoric acid and an adhesive should not be used alone in aged resin 16 . This type of etching did not significantly change the morphological pattern of an aged resin and its action is limited to a superficial cleaning effect 9 , but it can activate the reactivity between a silica surface and silane 14 .…”

Section: Discussionmentioning

confidence: 99%

“…This type of etching did not significantly change the morphological pattern of an aged resin and its action is limited to a superficial cleaning effect 9 , but it can activate the reactivity between a silica surface and silane 14 . Mechanical treatments such as grinding with diamond bur or abrasion are needed 16 before using an acid. In agreement with our results, there was no difference between the control group and etching with phosphoric acid surface treatment 2 .…”

Section: Discussionmentioning

confidence: 99%

Effect of composite surface treatment and aging on the bond strength between a core build-up composite and a luting agent

et al. 2015

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Objective The purpose of this study was to assess the influence of conditioning methods and thermocycling on the bond strength between composite core and resin cement.Material and Methods Eighty blocks (8×8×4 mm) were prepared with core build-up composite. The cementation surface was roughened with 120-grit carbide paper and the blocks were thermocycled (5,000 cycles, between 5°C and 55°C, with a 30 s dwell time in each bath). A layer of temporary luting agent was applied. After 24 h, the layer was removed, and the blocks were divided into five groups, according to surface treatment: (NT) No treatment (control); (SP) Grinding with 120-grit carbide paper; (AC) Etching with 37% phosphoric acid; (SC) Sandblasting with 30 mm SiO2 particles, silane application; (AO) Sandblasting with 50 mm Al2O3 particles, silane application. Two composite blocks were cemented to each other (n=8) and sectioned into sticks. Half of the specimens from each block were immediately tested for microtensile bond strength (µTBS), while the other half was subjected to storage for 6 months, thermocycling (12,000 cycles, between 5°C and 55°C, with a dwell time of 30 s in each bath) and µTBS test in a mechanical testing machine. Bond strength data were analyzed by repeated measures two-way ANOVA and Tukey test (α=0.05).Results The µTBS was significantly affected by surface treatment (p=0.007) and thermocycling (p=0.000). Before aging, the SP group presented higher bond strength when compared to NT and AC groups, whereas all the other groups were statistically similar. After aging, all the groups were statistically similar. SP submitted to thermocycling showed lower bond strength than SP without thermocycling.Conclusion Core composites should be roughened with a diamond bur before the luting process. Thermocycling tends to reduce the bond strength between composite and resin cement.

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Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs

Cited by 32 publications

References 14 publications

Improving shear bond strength of temporary crown and fixed dental prosthesis resins by surface treatments

Improving shear bond strength of temporary crown and fixed dental prosthesis resins by surface treatments

Bond strength of self-adhesive resin cements to composite submitted to different surface pretreatments

Effect of composite surface treatment and aging on the bond strength between a core build-up composite and a luting agent

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