Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments
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 we...
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th-mahidol.844802023-06-19T00:06:36Z Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments Chuenweravanich J. Mahidol University Dentistry 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 2023-06-18T17:06:36Z 2023-06-18T17:06:36Z 2022-01-01 Article Journal of Adhesive Dentistry Vol.24 No.1 (2022) , 67-76 10.3290/j.jad.b2288293 17579988 14615185 35262303 2-s2.0-85126077475 https://repository.li.mahidol.ac.th/handle/123456789/84480 SCOPUS |
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Dentistry Chuenweravanich J. Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments |
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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 |
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Mahidol University |
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Chuenweravanich J. |
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Chuenweravanich J. |
title |
Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments |
title_short |
Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments |
title_full |
Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments |
title_fullStr |
Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments |
title_full_unstemmed |
Bond Durability of a Repaired Resin Composite Using a Universal Adhesive and Different Surface Treatments |
title_sort |
bond durability of a repaired resin composite using a universal adhesive and different surface treatments |
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2023 |
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https://repository.li.mahidol.ac.th/handle/123456789/84480 |
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1781416406837886976 |