Repair bond strength of bulk-fill resin composite: Effect of different adhesive protocols

Cuevas‐Suárez, Carlos Enrique; Nakanishi, Leina; Isolan, Cristina Pereira; Ribeiro, Juliana Silva; Moreira, Andressa Goicochea; Piva, Evandro

doi:10.4012/dmj.2018-291

Cited by 31 publications

(34 citation statements)

References 18 publications

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“…After surface treatment to increase the roughness, the silane coupling agent has been usually used as bonding agent, in order to improve the adhesion between the filler particles and organic matrix of aged and new resin composite, because it is a bifunctional molecule capable of to bind with carbon double bonds of organic matrix by non-hydrolyzable functional group and hydroxyl groups of inorganic phase by hydrolyzable alkoxy groups (Fornazari et al, 2017). However, the benefit of using silane is controversial, as some studies (Ferracane, 2011;Tantbirojn et al, 2015;Fornazari et al, 2017;Cuevas-Suárez et al, 2020) reported the increase on bond strength of composite repairs, while others (Cho et al, 2013;Lima et al, 2014) showed no difference in use or not of this bifunctional coupling agent.…”

Section: Discussionmentioning

confidence: 99%

Bond strength repair of a bulk-fill composite using different adhesive systems and resin composites

Tsutsumi

Souza

Batista

et al. 2021

RSD

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In this study evaluated the effect of different adhesive systems and resin composites on the microtensile bond strength of repairs using a bulk-fill composite. Ninety specimens were prepared using a half-hourglass mold of composite Filtek Bulk Fill using a silicone matrix. Specimens were randomly distributed in 9 experimental groups (n=10) according to adhesive [Universal Single Bond (SBU), Scotchbond Multipurpose Adhesive (SBMP), and Single Bond 2 (SB2)] and resin composite (Filtek Bulk Fill, Aura Bulk Fill, and Filtek Z250). For control group, hourglass specimens were used to measure the ultimate bond strength. Specimens were submitted to thermal cycling (5,000 cycles, 5 and 55°C, 30s) to simulate the aging of restoration and then the repair procedure was performed. After the diamond-tipped surface roughening to be repaired, the adhesive protocol was performed according to group, the specimen was placed in an hourglass-shaped mold and the other half was filled with the repair composite. After 24h, bond strength of specimens was obtained by microtensile using a universal testing machine at a speed of 0.5mm/min. Data were statistically analyzed by two-way ANOVA, Tukey’s and Dunnett’s tests (α=0.05). SBU showed higher bond strength compared to SB2, while SBMP showed intermediate values. However, all experimental groups showed lower bond strength compared to ultimate bond strength. In conclusion, bulk-fill composite repair using universal or conventional solvent-free adhesive improved the adhesion independent of composite tested.

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Section: Discussionmentioning

confidence: 99%

Bond strength repair of a bulk-fill composite using different adhesive systems and resin composites

Tsutsumi

Souza

Batista

et al. 2021

RSD

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“…According to previous studies, the two most commonly used laboratory methods were the bond strength and the examination of fractured surface using stereo-or Scanning Electron Microscopes. (15)(16)(17) Nano-leakage is another way to evaluate the quality of the repair interface, which depends on tracing of silver nitrate particles along the composite-composite interface. (12)(13)(14) The advantage of nano-leakage methodology was that this method could be able to detect even the early signs of poor composite-composite interface quality, yet the repair bond strength was not affected.…”

Section: Introductionmentioning

confidence: 99%

Repair Durability of a Water-Aged Microfine Hybrid Restorative Resin Composite: A Nano-Leakage Study

El-Tahtawi

Laithy

Soliman

et al. 2021

Egyptian Dental Journal

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Aim: To evaluate the effect of using two types of flowable resin composites and storage time on nano-leakage of repaired water aged resin composite. Materials and Methods: In total, 30 resin composite discs were prepared and stored in distilled water for 6 m. The discs were then randomly divided into 6 experimental groups (n=5/group) according to the two experimental factors of the study: Factor 1: Flowable composite, 3 groups (no-flowable, high-viscosity and low-viscosity flowable composites), and Factor 2; Storage time after repair, 2 groups (24 h and 6 m). Repair procedures were carried out using universal adhesive with and without the application of the flowable composite. After repair, half of the specimens were stored for 24 h and the other half were stored for 6 m in distilled water. After the recommended storage time, each disc was sectioned into 2 halves and each half was prepared for silver nitrate staining procedures to evaluate the nano-leakage under SEM. Three photomicrographs were taken for each half-slab, resulting in 30 photomicrographs/group, which were analyzed using ImageJ software. Data were evaluated using Kruskal-Wallis/Mann-Whitney test (P=0.05). Results: The use of flowable composite had no significant effect on nano-leakage (P=0.129), while storage time showed a statistically significant effect on nano-leakage (P < 0.0001). There was no statistically significant difference regarding the use of flowable resin composite either at 24 h or 6 m storage times (P > 0.05). There was a statistically significant difference between 24 h and 6 m storage periods for all experimental variables (P < 0.05). Conclusion: The two types of flowable composites were not able to prevent the uptake of silver nitrate at the composite/composite interface either after 24 h or 6 m.

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“…New composite may be adhered to aged composite through micromechanical interlocking to irregularities in the prepared surface and through chemical bonding to the filler particles and the organic matrix. 12,13,14 Bonding agents improve the chemical bonds between the old and new materials. Silanes increase surface wetting, thereby enhancing diffusion of the bonding agent into the substrate.…”

Section: Introductionmentioning

confidence: 99%

Does use of silane-containing universal adhesive eliminate the need for silane application in direct composite repair?

et al. 2020

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This in vitro study aimed to evaluate the effect of a silane-containing universal adhesive used with or without a silane agent on the repair bond strength between aged and new composites. Forty nanohybrid composite resin blocks were stored in distilled water for 14 d and thermo-cycled. Sandpaper ground, etched, and rinsed speciments were randomly assigned into four experimental groups: silane + two-step etch-and-rinse adhesive system, two-step etch-and-rinse adhesive system, silane + silane-containing universal adhesive system, and silane-containing universal adhesive system. Blocks were repaired using the same composite. After 24 h of water storage, the blocks were sectioned and bonded sticks were submitted to microtensile testing. Ten unaged, non-repaired composite blocks were used as a reference group to evaluate the cohesive strength of the composite. Two-way ANOVA and Tukey's tests were used to analyze average µTBS. One-way ANOVA and Dunnet post-hoc tests were used to compare the cohesive strength values and bond strength obtained in the repaired groups (α = 0.05). The µTBS values were higher for the silane-containing universal adhesive compared to the two-step etch-and-rinse adhesive system (p = 0.002). Silane application improved the repair bond strength (p = 0.03). The repair bond strength ranged from 39.3 to 65.8% of the cohesive strength of the reference group. Using universal silane-containing adhesive improved the repair bond strength of composite resin compared to two-step etch-and-rinse adhesive. However, it still required prior application of a silane agent for best direct composite resin repair outcomes.

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Repair bond strength of bulk-fill resin composite: Effect of different adhesive protocols

Cited by 31 publications

References 18 publications

Bond strength repair of a bulk-fill composite using different adhesive systems and resin composites

Bond strength repair of a bulk-fill composite using different adhesive systems and resin composites

Repair Durability of a Water-Aged Microfine Hybrid Restorative Resin Composite: A Nano-Leakage Study

Does use of silane-containing universal adhesive eliminate the need for silane application in direct composite repair?

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