Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments
Issued Date
2022-01-01
Resource Type
ISSN
14615185
eISSN
17579988
Scopus ID
2-s2.0-85126077475
Pubmed ID
35262303
Journal Title
Journal of Adhesive Dentistry
Volume
24
Issue
1
Start Page
67
End Page
76
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Adhesive Dentistry Vol.24 No.1 (2022) , 67-76
Suggested Citation
Chuenweravanich J., Kuphasuk W., Saikaew P., Sattabanasuk V. Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments. Journal of Adhesive Dentistry Vol.24 No.1 (2022) , 67-76. 76. doi:10.3290/j.jad.b2288293 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/84480
Title
Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments
Author's Affiliation
Other Contributor(s)
Abstract
Purpose: To evaluate the long-term effect of different surface treatments on the repair microtensile bond strength (μTBS) of resin composite using a universal adhesive.Materials and Methods: Thirty-six resin composite blocks were fabricated and aged in 37°C distilled water for 1 month. The blocks were randomly assigned to different surface treatments: no treatment (control); diamond bur grinding (D); diamond bur + phosphoric acid cleaning (DP); diamond bur + silane application (DSi); diamond bur + phosphoric acid + silane (DPSi); and grit blasting with 50 μm Al2O3 particles + phosphoric acid + silane (APSi). Thereafter, Single Bond Universal adhesive was applied and repaired with the same composite. Composite-composite stick-shaped specimens were fabricated and subjected to the μTBS test either after 37°C water storage for 24 h or thermocycling for 10,000 cycles. Roughness of different surface-prepared specimens was measured by profilometer. Data were analysed using ANOVA and Duncan’s post-hoc test (α = 0.05). Failure mode and micromorphology of different surface-prepared specimens were observed with SEM and EDS analysis.Results: The highest μTBS was found in DPSi group at 24 h, and was significantly higher than others. The bond strengths in all thermocycled groups were significantly lower than those measured at 24 h. The highest μTBS was also found in the DPSi group, but this did not significantly differ from the DSi group.Conclusion: Thermocycling significantly reduced the repair bond strength. Diamond bur roughening with application of silane and universal adhesive yielded the highest repair bond strength for the aged resin composite