Surface treatments of a glass-fiber reinforced composite: Effect on the adhesion to a composite resin

Cadore-Rodrigues, Ana Carolina; Guilardi, Luís Felipe; Wandscher, Vinícius Felipe; Pereira, Gabriel Kalil Rocha; Valandro, Luiz Felipe; Rippe, Marília Pivetta

doi:10.1016/j.jpor.2019.09.001

Cited by 15 publications

(22 citation statements)

References 21 publications

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“…In conclusion, the findings of the present study clarified that the application of bonding after alcohol cleaning may be the most convenient and effective clinical procedure for fiber post treatment. This result agreed with those of previous studies using glass fiber blocks and universal adhesives (Single Bond Universal, 3M) [23]. In the present study, only one type of bonding resin was employed.…”

Section: Overall Findings and Limitationssupporting

confidence: 93%

“…No significant difference in bond strength was found between Si and Co, indicating that the silane application does not contribute to improved bonding. In fact, the results of previous studies regarding the effectiveness of silanization as a fiber post pretreatment have been contradictory [12][13][14][15][16], and the effects differ depending on the materials used [2,3,22,23]. Furthermore, according to a study by Zicari et al [24], SEM observations of the cross-sections of the fiber post demonstrated that glass fibers and the resin matrix were irregularly arranged.…”

Section: Experiments 1: Effects Of the Three Different Surface Treatmentsmentioning

confidence: 99%

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Does the bonding effectiveness of a fiber post/resin composite benefit from mechanical or chemical treatment? Seven methods for saliva-contaminated surfaces

et al. 2022

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Purpose: This study examined four cleaning methods and three chemical treatments for artificial saliva-contaminated fiber posts in terms of bonding durability to resin composite core materials. Methods: Non-contaminated fiber posts (Tokuyama FR Post, Tokuyama Dental) and those contaminated (GC Fiber Post, GC) with artificial saliva (Saliveht Aerosol, Teijin Pharma) were used. Washing and drying (WD), alcohol cleaning (AlC), H3PO4 etching (P/WD), alumina blasting (B/D) for decontamination and silanization (Clearfil Ceramic Primer Plus, Kuraray Noritake Dental, Si), resin priming (HC Primer, Shofu, MMA), and bonding resin application (Clearfil Universal Bond Quick, Kuraray Noritake Dental, BR) for chemical treatment were performed. The treated fiber post was planted inside a cylindrical tube and filled with resin composite (DC Core Automix ONE, Kuraray Noritake Dental). The specimen was sectioned, and a push-out test was performed after 24 h, 1 month, and 3 months. The fracture surface was observed using a scanning electron microscope (SEM). Results: Adhesion between the non-contaminated fiber post and resin composite did not improve by silanization and decreased by alumina blasting. SEM observations revealed a fractured glass fiber by alumina blasting. Saliva contamination decreased the bond strength between the fiber post and resin composite; however, recovery was achieved by WD, Alc, P/WD, and B/D. Compared to Si, BR (P = 0.009) was effective in restraining the long-term durability of bonding, whereas MMA (P = 0.99) was not. Conclusions: The application of bonding resin after alcohol cleaning is the most convenient and effective clinical procedure for fiber post surface treatment.

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Section: Overall Findings and Limitationssupporting

confidence: 93%

Section: Experiments 1: Effects Of the Three Different Surface Treatmentsmentioning

confidence: 99%

Does the bonding effectiveness of a fiber post/resin composite benefit from mechanical or chemical treatment? Seven methods for saliva-contaminated surfaces

et al. 2022

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“…Nevertheless, this type of cement/post failures can even be reduced if additional surface pre-treatment of the post would have been conducted, such as hydrogen peroxide cleaning, airabrasion with 30-mm (silica-coated) aluminum oxide particles. 33,34 Future research should address such additional fiber-post surface pre-treatments in order to evaluate their influence on PBS.…”

Section: Discussionmentioning

confidence: 99%

Better Glass-fiber Post Preservation in Teeth with Ferrule When Subjected to Chewing

Gré¹,

Lise²,

Ramos³

et al. 2021

Operative Dentistry

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SUMMARY Objectives: To evaluate the influence of ferrule effect and mechanical fatigue aging on glass-fiber post push-out bond strength (PBS) to root-canal dentin at different root thirds of premolars. Methods and Materials: Thirty-two sound maxillary premolar teeth were collected, and randomly assigned to two experimental groups (n=16): ‘Remaining Dentin Ferrule’ (RDF) = coronal crown cut 2.0 mm above the cemento-enamel junction (CEJ); ‘Without Dentin Ferrule’ (WDF) = coronal crown cut at the cemento-enamel junction. Teeth were endodontically treated, post spaces were prepared up to 10.0-mm depth from CEJ, and glass-fiber posts were cemented using a dual-cure self-adhesive composite cement. Standardized cores were built using a light-cure composite, upon which tooth cores were prepared using a 1.5-mm taper ogival-end diamond bur. Crowns were handmade using self-cure acrylic resin and cemented using the aforementioned composite cement. Half of the specimens were subjected to 1,200,000 cycles of mechanical fatigue in a chewing simulator (F = ‘Fatigue’), while the other half were stored in distilled water at 37°C for 1 week (C = ‘Control’). All specimens were horizontally sectioned into 1.0-mm thick slices prior to PBS test; the failure modes were assessed using stereomicroscopy and scanning electron microscopy (SEM). Data were analyzed for each root third using two-way analysis of variance (ANOVA) followed by Tukey HSD post-hoc test; frequency distribution was compared by Chi-square test (α=0.05) and post-hoc comparisons with Bonferroni. Results: The mean PBS in MPa (SD) were = RDF_F = 10.4 (2.9); WDF_F = 6.9 (1.7); RDF_C = 14.5 (2.7); WDF_C = 14.2 (2.9). Similar PBS were found for the root thirds. For all root thirds, significant differences were found for both the factors Dentin Ferrule and Fatigue, and their interaction (p<0.05). The lowest PBS was found for specimens without dentin ferrule subjected to chewing fatigue (p<0.001). Most failures occurred at the composite cement/dentin interface, followed by mixed and composite cement/glass-fiber post interfacial failures. There was a significant increase in mixed failures for the WDF_F group (p<0.001). Conclusion: Absence of 2.0-mm remaining dentin ferrule in premolars resulted in a higher decrease of the glass-fiber posts’ PBS to dentin after mechanical fatigue, irrespective of root third.

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“…Thus, improvements in degassing and, mainly, a surface treatment of the fibers are recommended. [55]…”

Section: Sem Analysesmentioning

confidence: 99%

Manufacture of bone fracture plates based on glass fiber reinforced polyurethane composite: a gravity casting adapted process

Sales

Moura

Costa

et al. 2022

Materials and Manufacturing Processes

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The development of materials and devices to replace or restore damaged tissue functions has a prominent position in the scientific community, promoting the interest for metal-free alternatives, like composites. These proved to be a promising option as, besides new matrix and reinforcement combinations, new manufacturing methods tend to fulfil tailored requirements of the medical field. In this sense, we manufactured glass fiber/polyurethane composite plates for Osteosynthesis. Models based on commercial LCP implants were 3D printed and used to generated molds through a new adapted resin casting process. Additional mechanical tests showed that reinforcement additions between 10 wt% and 25 wt% caused an increase in the bending structural stiffness by 126%-165% when compared to pure polymer implants. In addition, if the number of holes is increased, from 4 to 6, the maximum stress reduces by 40%. The manufacturing process was an effective alternative as it presented low cost, high customization and allowed the development of complex geometries, resin injection and degassing.

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Surface treatments of a glass-fiber reinforced composite: Effect on the adhesion to a composite resin

Cited by 15 publications

References 21 publications

Does the bonding effectiveness of a fiber post/resin composite benefit from mechanical or chemical treatment? Seven methods for saliva-contaminated surfaces

Does the bonding effectiveness of a fiber post/resin composite benefit from mechanical or chemical treatment? Seven methods for saliva-contaminated surfaces

Better Glass-fiber Post Preservation in Teeth with Ferrule When Subjected to Chewing

Manufacture of bone fracture plates based on glass fiber reinforced polyurethane composite: a gravity casting adapted process

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