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

Santos, Victor Hugo dos; Griza, Sandro; Moraes, Rafael R.; Faria-e-Silva, André Luís

doi:10.5395/rde.2014.39.1.12

Cited by 24 publications

(30 citation statements)

References 16 publications

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“…In no case the respective silane coupling agent was able to improve the bonding of resin composite cement to polymer. These findings correlate with results of a study, where the bonding of self-adhesive resin composite cements, among them RXU, to resin composite restorative materials was investigated under different pre-treatment protocols, of which one was silanization with RXCP 9) . In that study the use of silane coupling agent was unable to improve the bonding of self-adhesive resin composite cements to resin composite restorative materials.…”

Section: Shear Bond Strength To Polished Substratessupporting

confidence: 76%

“…The bond to the resin surface may be enhanced by mechanical and chemical means 6) . Theoretically, chemical bonding between methacrylate monomers is a possible bonding mechanism between resin composite cement and resin based restorative material 2,9) . Methacrylate monomers from the resin composite cement may copolymerize with unreacted vinyl groups of the polymeric material 7,10) .…”

Section: Introductionmentioning

confidence: 99%

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Adhesive bonding to polymer infiltrated ceramic

et al. 2016

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Aim of this study was to investigate the mechanism of adhesive bonding to the polymer-infiltrated ceramic VITA Enamic [VE]. Shear bond strength was measured with three resin composite cements: RelyX Unicem 2 Automix, Clearfil SA and Variolink II on polished surfaces of VE and its components silicate ceramic [SC] and polymer [PM] (n=12). Further, the effect of etching VE with 5% HF for 15-240 s and the application of silane coupling agents was analyzed in a screening test (n=6). Shear bond strength measurements were performed after 24 h of water storage at 37°C. Significant bonding to polished substrates could only be achieved on VE and SC when silane coupling agents were used. Etching of VE with 5% HF increased shear bond strength. Following silanization of etched VE, a further increase in shear bond strength could be established. Etching for more than 30 s did not improve shear bond strength.

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Section: Shear Bond Strength To Polished Substratessupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Adhesive bonding to polymer infiltrated ceramic

et al. 2016

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“…As a result, the second hypothesis was validated. The different performances in the micro-shear test can be related to differences in their compositions, which in turn affect material properties such as elastic modulus, viscosity, and surface etching capacity [7,14,17]. Rely X U200 has a low initial pH (<2), which increases the potential for demineralization of this cement and seems to contribute to the higher bond strength values found in this study when compared with Smart Cem 2.…”

Section: Discussionmentioning

confidence: 68%

“…Despite advances in adhesive dentistry, lasting bonds between indirect restorations and dentin remain a challenge [7,8,14]. Two interfaces are created during the luting process.…”

Section: Introductionmentioning

confidence: 99%

Effect of 2% chlorhexidine treated coronal dentin on bond strength of two self-adhesives cements

Chiarello

Mushashe

Cunha

et al. 2017

RSBO

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Introduction: Despite advances in adhesive dentistry, lasting bonds between indirect restorations and dentin remain a challenge. Objective: Therefore, the aim of this study was to evaluate the effect of chlorhexidine on the bond strength of self-adhesive cements to dentin after storage for 24 h and 90 days. Material and methods: Forty-eight human third molars crowns were included in polyvinyl chloride matrices using acrylic resin and worn to expose a flat dentin area. The specimens were randomly distributed into 8 groups (n = 12) in accordance with the self-adhesive cement (Rely X U200 and Smart Cem 2), the dentin treatment (application or not of 2 % chlorhexidine digluconate solution for 1 min) and the storage period (24 h or 90 d). Two cylinders' cements (1.4 x 1 mm) were constructed on the dentin surfaces of each sample, stored in distilled water for 24 h or 90 days and submitted to a micro-shear test. Subsequently, a failure analysis was performed to classify the failure into adhesive, cohesive, and mixed. Data were subjected to ANOVA and Tukey (0.05) tests. Results: There was a statistically significant difference between the materials (Rely X U200 > Smart Cem 2 -p < 0.05) regardless of the surface treatment and the storage period. Conclusion: The chlorhexidine application did not affect the immediate or delayed bond strength values, regardless of the self-adhesive cement.

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“…After phosphoric acid etching, the hybrid layer is not obvious between RU and dentin; bonding strengths of resin tags were relatively low. The bonding mechanism of this cement is not yet completely understood, but differs from that obtained with self-etched adhesives as no distinct demineralization and hybridization was observed during TEM morphological interface examination [24,25] . Many laboratory and clinical studies [26][27][28] noticed an inefficient bonding effectiveness for this particular adhesive.…”

Section: Resultsmentioning

confidence: 97%

Bonding efficacy of a self-adhesive resin cement to enamel and dentin

Wang

et al. 2014

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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With the objective to evaluate the bonding effi cacy of a new self-adhesive resin cement (RelyX Unicem, 3M ESPE) to enamel and dentin using a shear bonding strengths test with or without acid etching pretreatment, fl at buccal dentin surface and mesial/distal enamel surface were made using a high-speed diamond bur. Copper rings were luted using Rely X Unicem (RU; 3M ESPE), Panavia F (PF; Kuraray) or Vitique (VI; DMG). For RU, the shear bonding strengths using GL (Gluma Etch, Heraeus) acid etching pretreatment were also tested. The teeth were placed into copper rings (inner diameter: 16mm, height: 4mm) and embedded in methylmethacrylate resin. The specimens were stored for 24h in distilled water at 37 ℃ prior to shear bonding strengths testing. In addition, bond failures were examined by optical microscope and categorized as 4 models such as different adhesive, cohesive, or mixed. Shear bonding strengths were calculated by dividing the maximum debonding force over the cross sectional area of each specimen. The Kruskal-Wallis test was used to determine pairwise statistical differences (P < 0.05) in SBS between the experimental groups. For dentin bonding strength, statistical analysis showed that there was no signifi cant difference among RU (12.84 MPa), PF (14.93 MPa) and VI (11.03 MP); and the bonding strengths of them were higher than RU with acid etching pretreatment (9.12 MP). When bonded to enamel, PF (17.99 MP) and VI (17.58 MP) scored signifi cantly higher than RU effi cacy.The use of self-adhesive cement RelyX Unicem can obtain the bonding strengths to dentin similar to traditional resin cements. Phosphoric acid etching can improve the bonding strengths of the selfadhesive resin cement to enamel, but was negative for dentin.

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

Cited by 24 publications

References 16 publications

Adhesive bonding to polymer infiltrated ceramic

Adhesive bonding to polymer infiltrated ceramic

Effect of 2% chlorhexidine treated coronal dentin on bond strength of two self-adhesives cements

Bonding efficacy of a self-adhesive resin cement to enamel and dentin

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