Shear Bond Strength of Repair Composite Resin to an Acid-Etched and a Laser-Irradiated Feldspathic Ceramic Surface

Akyıl, Musa Şamil; Yılmaz, Asude; Karaalioğlu, Osman F.; Duymuş, Zeynep Yesïl

doi:10.1089/pho.2009.2586

Cited by 47 publications

(55 citation statements)

References 39 publications

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“…Cavalcanti et al 44 reported acceptable surface roughness by this laser at 400 and 600 mJ pulse energy. Akyil et al 40 showed that Er:YAG can be beneficial at 2 W power and 200 mJ pulse energy as well; the irradiation time for this setting was 10 seconds. CO 2 laser at 10 and 15 W power was used in the study of Ahrari et al and provided stronger bond strength than HF in feldspathic porcelains.…”

Section: Resultsmentioning

confidence: 96%

Evaluation of Different Types of Lasers in Surface Conditioning of Porcelains: A Review Article

et al. 2017

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To achieve proper bond strength for porcelains, adequate surface roughness is essential, which is traditionally gained by sandblasting or acid etching with hydrofluoric (HF) acid. Nowadays with the development of laser systems, serious efforts were made to apply this new instrument for surface etching of porcelains due to easy usage, safety, and more efficiency. There are different kinds of lasers and porcelains, so choosing the ones which will be good match for each other is crucial. Besides that, changing the irradiation setting can be beneficial as well. This article reviewed 33 related studies and summarized results of etching accomplished by Nd:YAG, Er:YAG, Er,Cr:YSGG and CO 2 lasers on different types of porcelains considering different laser settings and evaluation methods to bring a comprehensive insight.

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Section: Resultsmentioning

confidence: 96%

Evaluation of Different Types of Lasers in Surface Conditioning of Porcelains: A Review Article

et al. 2017

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“…Previous reports have shown that the Er,Cr:YSGG laser is capable of producing surface roughness comparable to that produced by acid etching of enamel and dentin surfaces 37,38. Many studies have evaluated the effects of different surface treatments,12,15,39-41 including laser treatments,29,34,42-44 on the shear bond strength of resin cement to ceramic restorations. Shear bond strengths in Nd:YAG and Er:YAG laser-irradiated ceramic surfaces have also been investigated,44 but not in those treated with a Er,Cr:YSGG laser.…”

Section: Introductionmentioning

confidence: 99%

Shear bond strength of resin cement to an acid etched and a laser irradiated ceramic surface

2013

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PURPOSETo evaluate the effects of hydrofluoric acid etching and Er,Cr:YSGG laser irradiation on the shear bond strength of resin cement to lithium disilicate ceramic.MATERIALS AND METHODSFifty-five ceramic blocks (5 mm × 5 mm × 2 mm) were fabricated and embedded in acrylic resin. Their surfaces were finished with 1000-grit silicon carbide paper. The blocks were assigned to five groups: 1) 9.5% hydrofluoric-acid etching for 60 s; 2-4), 1.5-, 2.5-, and 6-W Er,Cr:YSGG laser applications for 60 seconds, respectively; and 5) no treatment (control). One specimen from each group was examined using scanning electron microscopy. Ceramic primer (Rely X ceramic primer) and adhesive (Adper Single Bond) were applied to the ceramic surfaces, followed by resin cement to bond the composite cylinders, and light curing. Bonded specimens were stored in distilled water at 37℃ for 24 hours. Shear bond strengths were determined by a universal testing machine at 1 mm/min crosshead speed. Data were analyzed using Kruskal-Wallis and Mann-Whitney U-tests (α=0.05).RESULTSAdhesion was significantly stronger in Group 2 (3.88 ± 1.94 MPa) and Group 3 (3.65 ± 1.87 MPa) than in Control group (1.95 ± 1.06 MPa), in which bonding values were lowest (P<.01). No significant difference was observed between Group 4 (3.59 ± 1.19 MPa) and Control group. Shear bond strength was highest in Group 1 (8.42 ± 1.86 MPa; P<.01).CONCLUSIONEr,Cr:YSGG laser irradiation at 1.5 and 2.5 W increased shear bond strengths between ceramic and resin cement compared with untreated ceramic surfaces. Irradiation at 6 W may not be an efficient ceramic surface treatment technique.

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“…In this context, previous studies have shown that surface roughening with Nd:YAG laser results in an increase in repair bond strength of indirect (12) and silorane-based composite resins (8). However, in a study by Akyil et al , use of Nd:YAG laser alone did not result in an increase in repair bond strength of feldspathic ceramic (19). The discrepancy between the results might be attributed to differences in substrates (composite resin or ceramic) and their different response to laser and also the differences in laser parameters.…”

Section: Discussionmentioning

confidence: 94%

Reparability of giomer using different mechanical surface treatments

et al. 2017

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BackgroundIn the repair process achieving high bond strength between the new and old resin based materials is necessary for clinical longevity. This study compared the effect of three different mechanical surface treatments (air abrasion, Nd:YAG laser and diamond bur) on the repair bond strength of giomer.Material and MethodsIn this in vitrostudy, 125 cylindrical giomer samples were used. The giomer samples were randomly assigned to 5 groups (n=25). In group 1, the samples did not undergo any surface treatment. In groups 2 to 4, the samples underwent surface treatments with air abrasion, Nd:YAG laser and a diamond bur. The samples in group 5 were prepared to measure giomer cohesive strength. Subsequently, the new giomer was bonded to the existing giomer in groups 1 to 4. Then the repair bond strength of the samples was measured. One-way ANOVA and post hoc Tukey test were used to compare the bond strength. ResultsThere were significant differences between the different surface treatments (P<0.001); the repair bond strength in the air abrasion group was significantly higher than that in the Nd:YAG laser group, in which it was significantly higher than that in the diamond bur group, which was in turn higher than that in group 1 (no surface treatment) (P<0.001). In addition, the cohesive strength of giomer was significantly higher than the repair bond strength in the 4 other study groups (P<0.001).ConclusionsOf all the surface treatments, air abrasion and Nd:YAG laser, in descending order, yielded the highest repair bond strength values, with the repair bond strength values of 60‒70% of the giomer cohesive strength. Key words:Air abrasion, bond strength, giomer, Nd:YAG laser, repair, surface treatment.

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Shear Bond Strength of Repair Composite Resin to an Acid-Etched and a Laser-Irradiated Feldspathic Ceramic Surface

Cited by 47 publications

References 39 publications

Evaluation of Different Types of Lasers in Surface Conditioning of Porcelains: A Review Article

Evaluation of Different Types of Lasers in Surface Conditioning of Porcelains: A Review Article

Shear bond strength of resin cement to an acid etched and a laser irradiated ceramic surface

Reparability of giomer using different mechanical surface treatments

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