The Influence of One-step Polishing Systems on the Surface Roughness and Microhardness of Nanocomposites

Korkmaz, Yonca; Özel, Emre; Attar, Nuray; Aksoy, Gökhan

doi:10.2341/07-28

Cited by 96 publications

(136 citation statements)

References 26 publications

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“…Otherwise, the polishing agent will remove only the soft resin matrix and leave the filler particles protruding from the surface 34) . Studies have reported no appreciable differences in plaque accumulation among the surfaces polished by different methods and which resulted in Ra values within a range of 0.7-1.4 μm 6,35,36) . The highest mean Ra value for the composite materials tested in the present study was 0.20 μm.…”

Section: Discussionmentioning

confidence: 99%

Effect of one-step polishing systems on surface roughness of different flowable restorative materials

et al. 2008

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Section: Discussionmentioning

confidence: 99%

Effect of one-step polishing systems on surface roughness of different flowable restorative materials

et al. 2008

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“…These advances contribute to the improved mechanical and physical properties of contemporary restorative composites. [1][2] The longevity of a composite restoration is directly related to the effectiveness of the adhesive system used, as the lack of bonding and inadequate marginal sealing may lead to restoration failure. 3 Current adhesive systems interact with the enamel/dentin substrate, using two different strategies: either removing the smear layer prior to bonding (etch & rinse technique) or maintaining the smear layer as the substrate and allowing its modification by a low pH primer-adhesive (self-etch technique).…”

Section: Introductionmentioning

confidence: 99%

Effect of Adhesives and Thermocycling on the Shear Bond Strength of a Nano-Composite to Coronal and Root Dentin

Korkmaz

Gürgan

Fırat

et al. 2010

Operative Dentistry

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SUMMARYObjectives: To evaluate the effects of "etch & rinse" vs "self-etch" adhesives and thermocycling on the shear bond strength (SBS) of a nano-composite to coronal and root dentin. Materials and Methods: Fifty-six extracted human molars were mounted and ground to expose coronal and root dentin surfaces and were randomly divided into two groups according to adhesive system: SE-a two-step self-etch adhesive (Adper SE Plus, 3M ESPE) and ER-an etch & rinse adhesive (Adper Single Bond 2, 3M ESPE). The adhesives were applied to the coronal and root dentin of the mounted teeth. A nano-composite (Filtek Supreme XT, 3M ESPE) was applied to both dentin surfaces. The bonded specimens were stored in distilled water at 37°C for 24 hours. Half of the bonded specimens were tested for SBS in a universal testing machine without thermocycling. The remaining specimens were thermocycled (500 cycles between 5°C and 55°C) prior to SBS testing. Two specimens from each group were kept for Scanning Electron Microscope evaluations of the adhesive interfaces. Failure modes were determined under a stereomicroscope. The mean SBS value of each group was calculated, and the results were subjected to ANOVA, Duncan test and Paired samples t-test (p=0.05).Results: Thermocycling did not affect the SBS of coronal dentin for either adhesive. However, it affected the SBS of SE in root dentin (p<0.05). The Clinical RelevanceThe performance of an adhesive system may differ according to the dentin substrate and thermocyling. ©Operative Dentistry, 2010, 35-5, 522-529 523 two different dentin substrates did not exhibit a significant difference except for higher values in root dentin with the SE group without thermocycling. The greatest number of cohesive failures was observed in root dentin with SE adhesive; however, the failure modes were mainly adhesive for the other groups.Conclusion: The SE adhesive exhibited higher SBS values than the ER adhesive in root dentin. Thermocycling did not affect the SBS in coronal dentin for either adhesive but it decreased the SBS of SE in root dentin.

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“…In recent years, composite resin materials have also garnered a large following among patients with increased aesthetic expectations and demands. Improved formulations and simplified bonding procedures have endeared these materials to both patients and dentists alike [4][5][6] . Improvements in their mechanical and physical properties stem from reinforcing dental composites with filler particles, of which the filler concentration and particle size wield a significant influence 7) .…”

Section: Introductionmentioning

confidence: 99%

Surface hardness of different restorative materials after long-term immersion in sports and energy drinks

et al. 2012

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The purpose of this study was to evaluate the effect of sports and energy drinks on the surface hardness of different restorative materials over a 6-month period. Forty-two disk-shaped specimens were prepared for each of the four restorative materials tested: Compoglass F, Filtek Z250, Filtek Supreme, and Premise. Specimens were immersed for 2 min daily, up to 6 months, in six storage solutions (n=7 per material for each solution): distilled water, Powerade, Gatorade, X-IR, Burn, and Red Bull. Surface hardness was measured at baseline, after 1 week, 1 month, and 6 months. Data were analyzed statistically using repeated measures ANOVA followed by the Bonferroni test for multiple comparisons (α=0.05). Surface hardness of the restorative materials was significantly affected by both immersion solution and immersion period (p<0.001). All tested solutions induced significant reduction in surface hardness of the restorative materials over a 6-month immersion period.

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The Influence of One-step Polishing Systems on the Surface Roughness and Microhardness of Nanocomposites

Abstract: One-step polishing systems may be successfully used for polishing nanocomposites.

Cited by 96 publications

References 26 publications

Effect of one-step polishing systems on surface roughness of different flowable restorative materials

Effect of one-step polishing systems on surface roughness of different flowable restorative materials

Effect of Adhesives and Thermocycling on the Shear Bond Strength of a Nano-Composite to Coronal and Root Dentin

Surface hardness of different restorative materials after long-term immersion in sports and energy drinks

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