scholarly journals Microtensile bond strength of a universal adhesive to deep dentin

2016 ◽  
Vol 19 (2) ◽  
pp. 104
Author(s):  
Cristina Gre ◽  
MAuro Amaral Caldeira de Andrada ◽  
Sylvio Monteiro Junior
Keyword(s):  
Bond Strength ◽  
Water Storage ◽  
Adhesive System ◽  
Single Bond ◽  
Third Molars ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
The Mean ◽  
Self Etch ◽  
One Way Anova

<p><strong>Objective</strong>: This study evaluated the microtensile bond strength of a universal adhesive system applied to deep dentin under different bonding strategies. <strong>Material</strong> <strong>and Methods</strong>: Fifteen human third molars had the coronal portion removed exposing deep dentin and were assigned into 3 groups according to the adhesive system: G1(control): 2-steps totaletch (Adper Single Bond 2, 3M ESPE); G2: 1-step self-etch universal adhesive (Scotchbond Universal, 3M ESPE); G3:2 steps total-etch universal adhesive (Scotchbond Universal, 3M ESPE). Composite buildups were performed on the dentin surfaces and after water storage for 24 h, teeth were sectioned to obtain 40 bonded beams per group with sectional area of 0.9 mm2 . The specimens were submitted to the microtensile bond strength (µTBS) test until failure. Statistical analyses were computed using one-way ANOVA (p = 0.05). <strong>Results</strong>: The mean µTBS (in MPa) were G1 = 22.27, G2 = 22.85 and G3 = 20.3. After statistical analysis, no significant differences were observed among the groups. <strong>Conclusions</strong>: Universal adhesive system performed similarly to the total-etch adhesive and was not affected by the adhesion strategy.</p><p> </p><p><strong>KEYWORDS </strong></p><p>Microtensile; Adhesive system; Dentin.</p>

Does Bonding Approach Influence the Bond Strength of Universal Adhesive to Dentin of Primary Teeth?

2017 ◽  
Vol 41 (3) ◽  
pp. 214-218 ◽  
Author(s):  
Tathiane Larissa Lenzi ◽  
Fabio Zovico Maxnuck Soares ◽  
Rachel de Oliveira Rocha
Keyword(s):  
Bond Strength ◽  
Adhesive System ◽  
Primary Tooth ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Etch And Rinse ◽  
Tooth Dentin ◽  
Self Etch ◽  
One Way Anova

Objective: To evaluate the effect of bonding strategy on microtensile bond strength (μTBS) of a new universal adhesive system to primary tooth dentin. Study design: Flat dentin surfaces from 25 primary molars were assigned to 5 groups according to the adhesive and bonding approach: Adper Single Bond 2 (two-step etch-and-rinse adhesive) and Clearfil SE Bond (two-step self-etch system), as controls; Scotchbond Universal Adhesive–self-etch, dry or wet-bonding etch-and-rinse strategies. Composite buildups were constructed and the teeth were sectioned to obtain bonded sticks (0.8 mm2) to be tested under tension at 1mm/min. The μTBS means were analyzed by one-way ANOVA and Tukey's tests (α = 0.05). Failure mode was evaluated using a stereomicroscope (400×). Results: Universal adhesive applied following both dry and wet-bonding etch-and-rinse strategies showed similar bond strength compared with control adhesive systems. Self-etch approach resulted in the lowest μTBS values. For all groups, adhesive/mixed failure prevailed. The percentage of premature debonded specimens was higher when the universal adhesive was used as self-etch mode. Conclusion: The universal adhesive does not share the same versatility of being used in the etch-and-rinse and self-etch approaches; however, the use of the new adhesive following either wet or dry-bonding may be a suitable option as alternative to two-step etch-and-rinse adhesive protocol.

scholarly journals Effect of Different Application Techniques of Universal Bonding System on Microtensile Bond Strength of Bulk-Fill Composites to Primary and Permanent Dentin

2020 ◽  
Author(s):  
Masoud Fallahinejad Ghajari ◽  
Mahsa Sheikholeslamian ◽  
Amir Ghasemi ◽  
Leila Simaei
Keyword(s):  
Bond Strength ◽  
Failure Modes ◽  
In Vitro Study ◽  
Permanent Teeth ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Bonding System ◽  
The Mean ◽  
Self Etch

Objectives: This study aimed to determine the microtensile bond strength (μTBS) of a bulk-fill composite to permanent and primary coronal dentin using a universal adhesive in self-etch and total-etch modes. Materials and Methods: This in-vitro study was performed on 52 occlusal dentinal surfaces of human primary and permanent teeth. The crowns were cut to the gingival level. The 48 prepared dentin sections were randomly assigned to the following groups (n=13): A: Primary/Total-etch, B: Primary/Self-etch, C: Permanent/Total-etch, and D: Permanent/Self-etch. In groups A and C, after etching for 15 seconds, two layers of a universal bonding (Futurabond U) were applied and cured for 10 seconds. All samples were filled with a bulk-fill composite (x-trafil; VOCO) and cured for 40 seconds. The samples were cut to a bar-shaped dentin block with the dimensions of 1×1×1 mm3, and after 10,000 thermocycles, the μTBS test was accomplished at a crosshead speed of 1 mm/minute. The mean and standard deviation (SD) of μTBS were calculated, and the data were analyzed using two-way analysis of variance (ANOVA) and Fisher's exact test. Results: The mean μTBS was as follows: A: 15.03±2.0279, B: 11.11±2.4423, C: 23.50±4.8165, and D: 16.26±6.3200 MPa. Futurabond U showed a higher μTBS in the total-etch mode (P<0.001). The permanent teeth had greater μTBS than the primary teeth (P<0.001). Similar percentages of failure modes were observed in the total-etch groups but in the self-etch groups, most failures were in the form of adhesive and mixed. Conclusion: Greater μTBS was observed in the permanent teeth with the total-etch technique.

scholarly journals Effect of Mode of Application on the Microtensile Bond Strength of a Self-etch and Etch-and-Rinse Adhesive System

2010 ◽  
Vol 35 (4) ◽  
pp. 428-435 ◽  
Author(s):  
A. Reis ◽  
C. Zander-Grande ◽  
S. Kossatz ◽  
R. Stanislawczuk ◽  
A. Manso ◽  
...  
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Water Storage ◽  
Adhesive System ◽  
Microtensile Bond Strength ◽  
Mode Of Application ◽  
Etch And Rinse ◽  
Self Etch

Clinical Relevance All Bond 3 and All Bond Self-Etch are versatile systems, capable of being used either in the full or simplified version. Both showed adequate microtensile bond strength results in enamel and dentin after 24 hours of water storage.

Effect of Time and Temperature of Air Jet on the Mechanical and Biological Behavior of a Universal Adhesive System

2021 ◽  
Author(s):  
R Zimmer ◽  
ML Leite ◽  
CA de Souza Costa ◽  
J Hebling ◽  
G Anovazzi ◽  
...  
Keyword(s):  
Bond Strength ◽  
Morphological Changes ◽  
Adhesive System ◽  
Biological Behavior ◽  
Control Group ◽  
Cytotoxicity Test ◽  
Single Bond ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Air Jet

SUMMARY Objectives: To evaluate the influence of heat application on the degree of conversion (DC) of the 3M Single Bond Universal Adhesive System, as well as its transdentinal cytotoxicity and microtensile bond strength to dentin. Methods: Experimental groups were established according to the time and temperature of the air jet: G1: 5 seconds–25°C; G2: 10 seconds–25°C; G3: 20 seconds–25°C; G4: 5 seconds–50°C; G5: 10 seconds–50°C; G6: 20 seconds–50°C. In control group (G7), no treatment was performed. The DC was assessed using the Fourier transform infrared spectroscopy–attenuated total reflectance (FTIR–ATR) technique. For the transdentinal cytotoxicity test, dentin discs fitted in artificial pulp chambers (APC) received the application of the adhesive system and the air jets. For the microtensile bond strength, healthy molars were restored and submitted to the microtensile test after 24 hours and 6 months, respectively. Results: Significant reduction in viability of Mouse Dental Papilla Cell-23 (MDPC-23), which exhibited morphological changes, was observed in all experimental groups compared to control (p&lt;0.05). Although all tested protocols resulted in transdentinal diffusion of 2-hydroxyethyl methacrylate (HEMA), the group G6 presented the highest degree of monomeric conversion and the lowest cytotoxic effect, with higher dentin bond strength values in comparison to group G1 (p&lt;0.05). Conclusions: Applying an air blast at 50°C for 20 seconds increases the DC and microtensile bond strength of the 3M Single Bond Universal Adhesive System to dentin, as well as reduces the transdentinal cytotoxicity of the material to pulp cells.

scholarly journals Bonding Performance of a Hydrophilic Amide Monomer Containing Adhesive to Occlusal and Cervical Dentin

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4727
Author(s):  
Eri Seitoku ◽  
Shuhei Hoshika ◽  
Takatsumi Ikeda ◽  
Shigeaki Abe ◽  
Toru Tanaka ◽  
...  
Keyword(s):  
Bond Strength ◽  
Water Storage ◽  
Adhesive System ◽  
Adhesive Failure ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
Bonding Performance ◽  
One Step ◽  
The Mean ◽  
The One

This study aimed to evaluate the bonding performance of a new one-step self-etching adhesive system containing a novel hydrophilic amide monomer. Clearfil Universal Bond Quick (CUB) and Clearfil Megabond 2 (CMB) were used as the one-step and two-step adhesive systems, respectively. Flat dentin surfaces of human premolars were exposed using #600 SiC (silicon carbide) and bonded with the respective adhesives of each system. The teeth were sectioned to obtain beams (1 mm × 1 mm) after 24 h of water storage. The mean bond strength and standard deviations (MPa) on an occlusal surface were as follows: CUB: 45.9 ± 19.7 and CMB: 67.9 ± 25.3. The values for cervical ones were CUB: 56.0 ± 20.3 and CMB: 67.6 ± 16.0, respectively. In both conditions, the microtensile bond strength (μTBS) value was lower than that of CMB. As seen during the microscopic observation, no adhesive failure was observed after μTBS testing because CUB formed a firm and tight adhesive interface.

scholarly journals Evaluation of Microtensile Bond Strength of Universal Self-etch Adhesive System to Wet and Dry Dentin

2020 ◽  
Vol 8 (D) ◽  
pp. 77-81
Author(s):  
Mohamed Ahmed Wakwak ◽  
Eslam Hassan Gabr ◽  
Ahmed Mohamed Elmarakby
Keyword(s):  
Bond Strength ◽  
Adhesive System ◽  
Solvent Free ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Significance Level ◽  
Significant Difference ◽  
One Step ◽  
Storage Times ◽  
Self Etch

BACKGROUND: The durability of dentin-resin interfaces with the universal adhesive system is a crucial characteristic with chemical interactions between the exposed collagen and the adhesive monomers, but it is still compromised with wet and dry mode. AIM: The present study evaluated the effect of dentin wetness and solvents containing of one-step self-etch adhesives on the microtensile bond strength (μTBS) of dentin at different storage times. METHODS: Occlusal dentin of 54 extracted human molars was exposed. Each adhesive agent was applied according to manufacturer instructions to wet and dry dentin surfaces. Composite resin was incrementally built up. Bond strengths to dentin were determined using the μTBS test after water storage for 24 h, 1 month, and 6 months. One-way ANOVA was used to compare between more than two non-related samples. The significance level was set at p ≤ 0.05. RESULTS: Dryness of dentin increases the μTBS with solvent-containing adhesives while decrease the μTBS with solvent-free adhesive. There was an increase in microtensile bond strength values in the case of ethanol water-based self-etch adhesive over time. No statistically significant difference was found among different storage times regarding μTBS for solvent-free adhesive, while a statistically significant difference was found among different storage times in μTBS for solvent-containing adhesives. CONCLUSION: Universal adhesive systems improve the durability and stability of dentin bond strength.

scholarly journals Bond strength assessment of a universal adhesive system in etch-and-rinse and self-etch modes

2019 ◽  
Vol 48 ◽  
Author(s):  
Gustavo do Prado SCHOENHALS ◽  
Cinthia Lais BERFT ◽  
Fabiana Scarparo NAUFEL ◽  
Vera Lucia SCHMITT ◽  
Larissa Pinceli CHAVES
Keyword(s):  
Bond Strength ◽  
Testing Machine ◽  
Adhesive System ◽  
Single Bond ◽  
Universal Adhesive ◽  
Strength Assessment ◽  
Significance Level ◽  
Etch And Rinse ◽  
The Times ◽  
Self Etch

Abstract Introduction Modern dentistry is reflected in the insertion of new materials with different adhesion forms in dental structures, such as the Universal adhesive system. Objective To evaluate the bond strength of the universal dentin adhesive system, in the form of self-etching and conventional application, compared with a simplified conventional adhesive system, in two distinct periods: 1 week and 6 months. Material and method 48 bovine incisors separated into 6 groups, stored for 7 days, were selected. Worn out the buccal enamel until dentin exposure. Adper Single Bond 2 (3M Espe) or SingleBond Universal (3M Espe) adhesives were applied, and catheters filled with Opallis Flow (FGM) composite were placed. After photoactivation, the catheters were removed and the specimens (n = 48), stored in distilled water at 37 °C for one week and six months, were exposed. The specimens were fixed to a universal testing machine (EMIC DL 2000) with a speed of 0.5 mm / min. Bond strength (BS) was calculated in MPa, and data were statistically analyzed by Anova and Tukey test at 5% significance level. Result For Adper Single bond, the BS was equivalent in the times tested; for Universal conventional and self-conditioning time influenced the BS, with a decrease in the results. At 1 week, all stickers were different from each other, with higher BS for Universal conventional mode, followed by universal self-etching mode and then Adper Single bond. Conclusion The best results were achieved with universal adhesive in conventional mode for both tested times.

scholarly journals Influence of a heating device and adhesive temperature on bond strength of a simplified ethanol-based adhesive system

2016 ◽  
Vol 45 (2) ◽  
pp. 97-102 ◽  
Author(s):  
Marcos Paulo Marchiori CARVALHO ◽  
Rachel de Oliveira ROCHA ◽  
Ivo KREJCI ◽  
Tissiana BORTOLOTTO ◽  
Fábio Ecke BISOGNO ◽  
...  
Keyword(s):  
Bond Strength ◽  
Adhesive System ◽  
Microtensile Bond Strength ◽  
Air Jet ◽  
Etch And Rinse ◽  
Significant Difference ◽  
The Mean ◽  
Acid Gel ◽  
One Way Anova ◽  
Warming Device

Abstract Introduction Increased adhesive temperature has been reported to promote solvent evaporation, reduce viscosity, and improve monomeric permeation into dentin. Objective The aim of this study was to determine the influence of different heating methods on the microtensile bond strength of an etch-and-rinse adhesive to dentin. Material and method Twenty-four caries-free extracted human third molars were transversally sectioned to expose a flat dentinal surface. The samples were etched with 37% phosphoric acid gel and divided into three groups (n = 8): 1) Control - the adhesive system (Adper Single Bond 2; 3M ESPE) was applied at room temperature; 2) Warming device - the adhesive was warmed to 37°C in a custom device before application; and 3) Warm air - the adhesive was warmed to 50°C with an air jet after application on dentin. The specimens were restored with a composite resin (Filtek Z250 A2, 3M ESPE) and prepared for microtensile bond strength testing, after 24 h in water storage. The data were subjected to one-way ANOVA and Tukey's test (p < 0.05). Result There was no significant difference among the groups (p > 0.05). The mean bond strength values in the control, the warming device, and the warm air groups were 48.5 (± 5.2), 40.35 (± 4.9), and 47.2 (± 5.3) MPa, respectively (p = 0.05). Conclusion The different heating methods had no significant influence on the immediate microtensile bond strength of an etch-and-rinse ethanol-based adhesive to dentin.

scholarly journals Modified Microtensile Bond Strength of Glass Ionomer to Composite Resin Using Universal Adhesive in Self-etch and Total-etch Modes

2020 ◽  
Vol 14 (1) ◽  
pp. 390-395
Author(s):  
Hamid Kermanshah ◽  
Ladan R. Omrani ◽  
Omid Hemati ◽  
Prham Pedram ◽  
Elham Ahmadi
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Testing Machine ◽  
Glass Ionomer ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Bonding Agents ◽  
Failure Data ◽  
Self Etch ◽  
One Way Anova

Background: Glass Ionomer Cements (GICs) are frequently used as base or liner before the application of restorative materials. The success of this approach depends on the bond strength of GICs to composite resin. Objectives: This study to assess the modified microtensile bond strength of glass ionomer to composite resin using universal adhesive in self-etch and total-etch modes. Methods: Samples were fabricated of resin-modified GIC (RMGIC) and conventional GIC(CGIC) (6 x 1 x 1 mm), and were randomly divided into 8 groups. Clearfil SE Bond and G-Premio universal adhesive in self-etch and total-etch modes were used according to the manufacturers’ instructions. Z250 composite was applied over the GIC (12 x 1 x 1 mm), and light-cured. The microtensile bond strength was measured using a universal testing machine. The samples in each group were evaluated under an electron microscope to determine the mode of failure. Data were analyzed using one-way ANOVA and Tukey’s test. Results: The microtensile bond strength of RMGI used with Clearfil SE Bond was significantly higher than that of other groups (6.57±1.15 MPa) (P<0.05). The maximum and minimum microtensile bond strength values of CGIC after applying the bonding agents were recorded after using G-Premio total-etch mode (1.34±0.77 MPa) and SE Bond in total-etch mode(1.18±79 MPa), respectively. Conclusion: Application of of G-Premio in both modes did not show any significant different bond strength in both glass ionomers. The bond strength of RMGIC was higher than that of CGIC, and the maximum bond strength of RMGI was achieved by the use of SE Bond.

scholarly journals Characterization of an Experimental Two-Step Self-Etch Adhesive’s Bonding Performance and Resin-Dentin Interfacial Properties

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1009
Author(s):  
Abu Faem Mohammad Almas Chowdhury ◽  
Arefin Alam ◽  
Monica Yamauti ◽  
Pedro Álvarez Lloret ◽  
Pipop Saikaew ◽  
...  
Keyword(s):  
Layer Thickness ◽  
Water Storage ◽  
Adhesive Layer ◽  
Third Molars ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Bonding Performance ◽  
Adhesive Thickness ◽  
Self Etch

This study evaluated an experimental two-step self-etch adhesive (BZF-29, BZF) by comparing it with a reference two-step self-etch adhesive (Clearfil Megabond 2, MB) and a universal adhesive (G-Premio Bond, GP) for microtensile bond strength (μTBS) and resin-dentin interfacial characteristics. Twenty-four human third molars were used for the μTBS test. Bonded peripheral dentin slices were separated to observe the resin-dentin interface and measure the adhesive layer thickness with SEM. μTBS data of the central beams were obtained after 24 h and 6 months of water storage. Fracture modes were determined using a stereomicroscope and SEM. Nine additional third molars were used to determine the elastic modulus (E) employing an ultra microhardness tester. Water storage did not affect μTBS of the tested adhesives (p > 0.05). μTBS of BZF and MB were similar but significantly higher than GP (p < 0.05). BZF achieved the highest adhesive layer thickness, while GP the lowest. E of BZF and MB were comparable but significantly lower than GP (p < 0.05). Except for GP, the predominant fracture mode was nonadhesive. The superior bonding performance of BZF and MB could be attributed to their better mechanical property and increased adhesive thickness imparting better stress relief at the interface.

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