Influence of aging methods on push-out bond strength of adhesive systems to dentin cavities

Chaves, Letícia Virgínia de Freitas; Medeiros, Tuany Arantxa de; Borges, Boniek Castillo Dutra; Mainardi, Maria do Carmo Aguiar Jordão; Catelan, Anderson; Aguiar, Flávio Henrique Baggio

doi:10.1186/s40563-016-0079-z

Cited by 5 publications

(6 citation statements)

References 20 publications

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“…According to Texeira et al [ 32 ], thermocycling decreases the bond strength of a universal adhesive to enamel and dentin significantly since thermocycling produces stress in the dentin-adhesive interface due to the different thermal expansion coefficients of adhesive and dentin. This leads to an increase in water sorption and further bond failure [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

The effect of dentin surface pretreatment using dimethyl sulfoxide on the bond strength of a universal bonding agent to dentin

et al. 2023

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Background This study aimed to evaluate the effect of dentin pretreatment by Dimethyl Sulfoxide (DMSO) on the bond strength and microleakage of a universal bonding agent to dentin. Methods Fifty-six dentinal discs (thickness = 2 mm) were obtained from the crowns of the human third molars. The disks were assigned into 4 groups and treated as follows; self-etch-control group: G-Premio universal adhesive was used in self-etch mode, total-etch-control: G-Premio universal adhesive was used in total-etch mode, self-etch-DMSO: Water-based DMSO (50% volume) was applied on the samples for 60 s followed by application of G-Premio universal adhesive in self-etch mode, and Total-etch-DMSO: The samples were etched, and then, water-based DMSO was applied on them for 60 s followed by the application of G-Premio universal adhesive in total-etch mode. Afterward, resin composite was placed on all samples and light-cured. The samples were kept in distilled water and subjected to 5000 thermal cycles. Microshear bond strength was measured using the universal testing machine and failure modes were analyzed using a stereomicroscope. Forty-eight human third molars were used for microleakage evaluation and a standardized class five cavity was prepared on the buccal surface of each tooth. The teeth were assigned into 4 groups and received aforementioned surface treatment and the cavities were filled with resin composite. After storing in water for 24 h, the samples were subjected to 5000 cycles of thermocycling and the microleakage level of the samples was evaluated using silver nitrate uptake at the bonded interface. Two-way ANOVA test was used to analyze the effect of bonding technique (self-etch/ total-etch) and DMSO pretreatment on the microshear bond strength and microleakage of G-Premio adhesive to dentin. Results Bonding technique had no effect on the bond strength values (p = 0.17) while DMSO pretreatment significantly decreased the microshear bond strength of the samples (p = 0.001). DMSO application increased microleakage significantly in total-etch (P-value = 0.02) while it had no effect in self-etch mode (P-value = 0.44). Conclusions Pretreatment of dentin using 50% DMSO significantly reduced the bond strength of G-Premio Bond in both self-etch and total-etch modes. DMSO effect on microleakage depended on the etching technique; DMSO increased the microleakage level when the adhesive was used in total-etch mode while did not affect the microleakage in self-etch mode.

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Section: Discussionmentioning

confidence: 99%

The effect of dentin surface pretreatment using dimethyl sulfoxide on the bond strength of a universal bonding agent to dentin

et al. 2023

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“…The stress distribution can affect the coping by having unequal stress, creating a bending force of the coping and the bonded interface, however, none of the copings from all groups showed any fractures after the tensile bond strength test. Moreover, no evaluation of the marginal gap between the titanium base and the copings was performed after cementation and after thermocycling, furthermore the combination of thermo-mechanical aging may have an impact on the bonding interface which may alter the pull-out forces [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

Bond strength of zirconia- or polymer-based copings cemented on implant-supported titanium bases – an in vitro study

Eliann

Hua

Papia

2021

Biomaterial Investigations in Dentistry

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Purpose To evaluate the bond strength between polymer-based copings and zirconia copings as positive control, cemented on implant-supported titanium bases with different adhesive cement systems. Moreover, to evaluate if airborne-particle abrasion of polymethylmetacrylate (PMMA) would enhance the bond strength. Methods Four groups of different materials were used to fabricate the copings, 30 in each group: airborne-particle abraded milled zirconia (TAZirconia, control group), milled PMMA (TPMMA), airborne-particle abraded milled PMMA (TAPMMA) and 3 D-printed micro filled hybrid resin (TAMFH). Each group of copings was cemented on titanium bases by three different adhesive cement systems, 10 each: Multilink Hybrid Abutment, Panavia V5, RelyX Ultimate. The specimens were stored dry at room temperature for 24 h, subjected to thermocycling for 5000 cycles followed by evaluating the bond strength by tensile strength test. Results TPMMA and TAPMMA cemented with Multilink Hybrid Abutment showed statistically significant lower bond strength in comparison to TAZirconia and TAMFH. No difference was observed between the latter two. TPMMA, TAPMMA and TAMFH had a statistically significant lower bond strength compared to the control group when cemented with Panavia V5. TPMMA and TAPMMA cemented with Rely X Ultimate showed statistically significant lower bond strength in comparison to the control group. Conclusion Almost all experimental groups, except 3 D-printed MFH, performed inferior than the positive control group where the highest bond strength was reported for the cementation of zirconia copings cemented with Panavia V5 or Rely X Ultimate. Airborne-particle abrasion did not improve the bond strength of the PMMA, except when Multilink Hybrid Abutment was used.

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“…In vitro aging methods have been considered an important factor in studies aiming to assess the long-term behavior of adhesives systems concerning dental material's surface degradation [25]. Different aging methods such as storage in water, thermocycling, pH cycling, and storage in sodium hypochlorite solution, as well as associations between them, have previously been reported to evaluate bonding efficacy of bonded restorations [21,25,26]. However, the test outcome clearly depends on the stress generated and the failure mechanism [26].…”

Section: Introductionmentioning

confidence: 99%

“…Different aging methods such as storage in water, thermocycling, pH cycling, and storage in sodium hypochlorite solution, as well as associations between them, have previously been reported to evaluate bonding efficacy of bonded restorations [21,25,26]. However, the test outcome clearly depends on the stress generated and the failure mechanism [26]. Regardless of that, the best in vitro aging method for studying dental materials is lacking [25,26].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Optional Crystallization Firing on the Adhesion of Zirconia-Reinforced Lithium Silicate before and after Aging

et al. 2022

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This study proposed to evaluate the influence of the crystallization firing process and the hydrothermal degradation on the bond strength between different reinforced glass-ceramics and resin cement. Material and Methods: zirconia-reinforced lithium silicate (ZLS) and lithium disilicate (LD) were divided into six groups according to aging simulation (baseline or after thermocycling) and restorative approach (ZLS without firing; ZLS with firing; LD with firing). ZLS and LD surfaces were etched with 5% hydrofluoric acid for 30 s and 20 s, respectively, and then received a layer of silane coupling agent (Monobond-N). Then, cylinders of resin cement (1 mm diameter × 2 mm height) were bonded onto their surfaces. The baseline samples were immersed in distilled water for 24 h before the microshear bond strength (µSBS) test, while half of the specimens were tested after 6000 cycles of thermocycling aging. The types of failures were analyzed through stereomicroscopic and scanning electron microscope. The failure modes were classified as adhesive, predominantly adhesive, cohesive in ceramic, or cohesive in cement. The µSBS data were analyzed by two-way ANOVA and Tukey’s test. A restorative approach (p = 0.000) and aging (p = 0.000) affected the bond strength. The highest bond-strength values were observed in the ZLS without the optional crystallization firing. The most frequent failures were adhesive and predominantly adhesive. The cementation of zirconia-reinforced lithium silicate without the optional crystallization firing process leads to high bond-strength values with resin cement.

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Influence of aging methods on push-out bond strength of adhesive systems to dentin cavities

Cited by 5 publications

References 20 publications

The effect of dentin surface pretreatment using dimethyl sulfoxide on the bond strength of a universal bonding agent to dentin

The effect of dentin surface pretreatment using dimethyl sulfoxide on the bond strength of a universal bonding agent to dentin

Bond strength of zirconia- or polymer-based copings cemented on implant-supported titanium bases – an in vitro study

Influence of Optional Crystallization Firing on the Adhesion of Zirconia-Reinforced Lithium Silicate before and after Aging

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