scholarly journals Microtensile Bond Strength of Composite to Enamel Using Universal Adhesive with/without Acid Etching Compared To Etch and Rinse and Self-Etch Bonding Agents

2018 ◽  
Vol 6 (11) ◽  
pp. 2186-2192 ◽  
Author(s):  
Hoda Pouyanfar ◽  
Elaheh Seyed Tabaii ◽  
Samaneh Aghazadeh ◽  
Seyyed Pedram Tabatabaei Navaei Nobari ◽  
Mohammad Moslem Imani
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Testing Machine ◽  
Acid Etching ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Bonding Agents ◽  
Modes Of Failure ◽  
Etch And Rinse ◽  
Self Etch

AIM: Considering the recent introduction of universal adhesives and the controversy regarding the use/no use of etchant prior to their application, this study sought to assess the microtensile bond strength of composite to enamel using universal adhesive with/without acid etching compared to three-step etch and rinse, two-step etch and rinse and two-step self-etch bonding agents. METHODS: This in vitro, an experimental study was conducted on 80 extracted sound human molars in five groups (16 each): Scotchbond Universal adhesive (3M) with/without prior etching, Adper Scthe otchbond Multi-Purpose, Single Bond and Clearfil SE Bond. Etching was performed with 37% phosphoric acid for 20 seconds followed by rinsing and drying. The bonding agent was then applied and light-cured. The e-lite composite was bonded to surfaces and light-cured. The teeth were then mounted, sectioned and subjected to microtensile bond strength test in a universal testing machine. The mode of failure was, determined under a stereomicroscope. Data were analysed using one-way ANOVA followed by Tukey’s test. RESULTS: Universal adhesive with prior etching yielded the highest bond strength (P = 0.03). Pairwise comparisons showed that the bond strength of this group was significantly higher than that of universal adhesive without prior etching (P = 0.04). No other significant differences were noted (P > 0.05). The modes of failure were significantly different among the groups (P = 0.003). CONCLUSION: Enamel etching with phosphoric acid can significantly increase the bond strength to universal adhesive. Universal adhesive without prior etching provided the bond strength as high as that provided by etching and rinse and self-etch bonding agents.

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.

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 Microshear Bond Strength of Scotchbond Universal Adhesive to Primary and Permanent Dentin: A Six-Month In Vitro Study

2019 ◽  
Author(s):  
Masoud Fallahinejad Ghajari ◽  
Amir Ghasemi ◽  
Mohammadreza Badiee ◽  
Zahra Abdolazimi ◽  
Alireza Akbarzadeh Baghban
Keyword(s):  
Bond Strength ◽  
Testing Machine ◽  
In Vitro Study ◽  
Permanent Teeth ◽  
Universal Adhesive ◽  
Mode Of Application ◽  
Etch And Rinse ◽  
Microshear Bond Strength ◽  
Self Etch

Objectives: This study aimed to assess the microshear bond strength (MSBS) of Scotchbond Universal adhesive, used in self-etch and etch-and-rinse modes, to primary and permanent dentin at 24 hours and six months. Materials and Methods: A total of 88 composite micro-cylinders were divided into eight groups (n=11) as follows: (A) Etch-and-rinse, 24 hours, primary dentin; (B) Self-etch, 24 hours, primary dentin; (C) Etch-and-rinse, six months, primary dentin; (D) Self-etch, six months, primary dentin; (E) Etch-and-rinse, 24 hours, permanent dentin; (F) Self-etch, 24 hours, permanent dentin; (G) Etch-and-rinse, six months, permanent dentin; (H) Self-etch, six months, permanent dentin. The MSBS was measured by a testing machine at a crosshead speed of 0.5 mm/minute. Data were analyzed using three-way analysis of variance (ANOVA). Results: The mean MSBS was 12.3±2.3 MPa in A, 18.8±4.1 MPa in B, 11.9±3.7 MPa in C, 16±2.9 MPa in D, 19.1±2.7 MPa in E, 22.8±4.1 MPa in F, 16.2±2.6 MPa in G, and 17.2±4.4 MPa in H. In the self-etch mode, the MSBS was significantly higher than that in the etch-and-rinse mode (P<0.001). The MSBS in permanent teeth was significantly higher than primary teeth (P<0.001). At six months, the MSBS significantly decreased in all groups (P<0.001). Conclusion: The micro-shear bond strength of Scotchbond Universal adhesive decreases over time and depends on the type of tooth and the mode of application of the adhesive.

Repair Surface Conditioning Measures Affect Enamel and Dentin Bond Strength

2020 ◽  
Vol 45 (6) ◽  
pp. 643-654
Author(s):  
P Kanzow ◽  
L Piecha ◽  
J Biermann ◽  
A Wiegand
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Hydrofluoric Acid ◽  
Silica Coating ◽  
Acid Etching ◽  
Universal Adhesive ◽  
Universal Primer ◽  
Surface Conditioning ◽  
Etch And Rinse ◽  
Phosphoric Acid Etching

Clinical Relevance Contamination of enamel and dentin with repair surface conditioning measures should be avoided. SUMMARY Objectives: To analyze whether the contamination with different repair conditioning measures impairs the adhesive performance of a universal adhesive applied in etch-and-rinse mode (ER) or self-etch mode (SE). Methods and Materials: Bovine enamel and dentin surfaces (each subgroup n=16) were bonded with a universal adhesive in ER or SE after contamination with different repair conditioning measures (sandblasting, silica coating, hydrofluoric acid etching, self-etching ceramic primer). In half of the groups, sand-blasting, silica coating, and hydrofluoric acid etching was followed by the use of a universal primer. If the universal adhesive was applied in ER, contamination was performed either before or after phosphoric acid etching. If the universal adhesive was applied in SE, bonding was performed after contamination. In the control groups, no contamination was simulated. Shear bond strength (SBS) and failure modes of composite buildups were determined after thermal cycling (10,000 cycles, 5°C-55°C). Statistical analysis was performed using analyses of variance, Weibull statistics, and χ2 tests (p&lt;0.05). Results: In ER, sandblasting and silica coating significantly reduced SBS (control: enamel =25.7±4.2 MPa; dentin = 22.0±5.3 MPa) only when performed after phosphoric acid etching. Contamination with hydrofluoric acid impaired SBS on enamel but not on dentin. The self-etching ceramic primer reduced SBS, but not significantly. The contamination with the universal primer had no significant effect. In SE, all repair conditioning measures except the universal primer reduced SBS (control: enamel = 20.3±5.5 MPa; dentin = 23.0±4.0 MPa). Conclusion: Contamination of enamel and dentin by repair conditioning measures potentially affects bond strength.

Shear Bond Strength of Self-etch Adhesives to Enamel with Additional Phosphoric Acid Etching

10.2341/07-63 ◽  
2008 ◽  
Vol 33 (2) ◽  
pp. 155-162 ◽  
Author(s):  
A-K. Lührs ◽  
S. Guhr ◽  
R. Schilke ◽  
L. Borchers ◽  
W. Geurtsen ◽  
...  
Keyword(s):  
Composite Materials ◽  
Phosphoric Acid ◽  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
Acid Etching ◽  
Etch And Rinse ◽  
Bond Strengths ◽  
Self Etch ◽  
Phosphoric Acid Etching

Clinical Relevance When using self-etch adhesives to bond composite materials to enamel, there is concern about the ability to achieve bond strengths comparable to approved etch-and-rinse systems. An additional phosphoric acid etching can improve the shear bond strength of self-etch adhesives to enamel.

scholarly journals Effect of Selective Etch on the Bond Strength of Composite to Enamel Using a Silorane Adhesive

2015 ◽  
Vol 40 (6) ◽  
pp. E242-E249 ◽  
Author(s):  
L Bermudez ◽  
M Wajdowicz ◽  
D Ashcraft-Olmscheid ◽  
K Vandewalle
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Surface Treatment ◽  
The Self ◽  
Acid Etching ◽  
Bonding Agents ◽  
Diamond Saw ◽  
Bovine Enamel ◽  
Self Etch ◽  
Phosphoric Acid Etching

SUMMARY An improvement in bond strength to enamel has been demonstrated with the use of phosphoric acid prior to bonding with self-etch methacrylate-based adhesive agents. No research has evaluated the effect of phosphoric-acid etching of enamel with a newer self-etch silorane adhesive. The purpose of this study was to evaluate the shear-bond strength of composite to enamel using the self-etch silorane adhesive compared to other self-etching methacrylate-based adhesives, with or without a separate application of phosphoric acid. Bovine incisors were sectioned using a diamond saw and mounted in plastic pipe. The bonding agents were applied to flattened enamel surfaces with or without the application of 35% phosphoric acid. The bonded tooth specimens were inserted beneath a mold, and composite was placed incrementally and light cured. The specimens were stored for 24 hours and six months in water and tested in shear. Data were analyzed with a three-way analysis of variance (ANOVA) to evaluate the effects of surface treatment, adhesive agent, or time on the bond strength of composite to bovine enamel (α=0.05). Significant differences were found between the groups based on surface treatment (p&lt;0.01) or adhesive agent (p&lt;0.01), but not on time (p=0.19), with no significant interactions (p&gt;0.14). Phosphoric-acid etching of bovine enamel significantly increased the bond strength of the self-etch methacrylate and the silorane adhesives. The methacrylate-based adhesives had significantly greater bond strength to enamel than the silorane adhesive.

scholarly journals Effect of adhesive mode and chlorhexidine on microtensile strength of universal bonding agent to sound and caries-affected dentins

2018 ◽  
Vol 12 (04) ◽  
pp. 553-558 ◽  
Author(s):  
Joyce Figueiredo Macedo de Lima ◽  
Danielle Wajngarten ◽  
Fariya Islam ◽  
Johanna Clifford ◽  
Ana Carolina Botta
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Composite Resin ◽  
High Viscosity ◽  
Bonding Agent ◽  
Third Molars ◽  
Microtensile Bond Strength ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Self Etch

ABSTRACT Objective: The main objective of this study is to assess the effect of the adhesive mode and chlorhexidine (CHX) on the microtensile strength of a universal bonding agent to sound and caries-affected dentins. Materials and Methods: Six intact third molars and six decayed third molars were sectioned to obtain two middle dentin specimens per tooth. Prime and Bond Elect Universal (Dentsply) was applied to specimens in two different modes: Etch-and-rinse (ER, phosphoric acid for 15s) and self-etch (SE, no phosphoric acid). 2% CHX (Cavity Cleanser, Bisco) was applied to both dentins for 30 s. Specimens were randomly assigned into eight groups (n = 3) according to the treatments applied to sound and caries-affected dentins: SE; ER; SE + CHX; and ER + CHX. All specimens were restored with TPH Spectra High Viscosity (Dentsply) composite resin and sectioned to obtain specimens of 0.8 ± 0.1 mm2. The microtensile bond strength test was conducted at 1 mm/min. The data were statistically analyzed by ANOVA and multiple comparisons' test (α = 0.05). Results: There was no significant difference between sound dentin and caries-affected dentin (P = 0.132). The highest bond strength was obtained with the application of the ER (31.81MPa). SE + CHX promoted the lowest bond strength with no statistical difference to ER + CHX (P > 0.05). Conclusions: ER mode for the universal bonding agent yielded the highest bond strength to sound and caries-affected dentins. CHX reduced the bond strength to both dentins regardless the application of phosphoric acid. Clinical Significance: The universal bonding agent increased the bond strength to sound and caries-affected dentins when applied by the ER mode.

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.

Enamel Bond Strength of New Universal Adhesive Bonding Agents

2015 ◽  
Vol 40 (4) ◽  
pp. 410-417 ◽  
Author(s):  
DE McLean ◽  
EJ Meyers ◽  
VL Guillory ◽  
KS Vandewalle
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Adhesive Bonding ◽  
Shear Failure ◽  
Universal Adhesive ◽  
Bonding Agents ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Universal Adhesives ◽  
Self Etch

SUMMARY Purpose Universal bonding agents have been introduced for use as self-etch or etch-and-rinse adhesives depending on the dental substrate and clinician's preference. The purpose of this study was to evaluate the shear bond strength (SBS) of composite to enamel using universal adhesives compared to a self-etch adhesive when applied in self-etch and etch-and-rinse modes over time. Methods and Materials Extracted human third molars were used to create 120 enamel specimens. The specimens were ground flat and randomly divided into three groups: two universal adhesives and one self-etch adhesive. Each group was then subdivided, with half the specimens bonded in self-etch mode and half in etch-and-rinse mode. The adhesives were applied as per manufacturers' instructions, and composite was bonded using a standardized mold and cured incrementally. The groups were further divided into two subgroups with 10 specimens each. One subgroup was stored for 24 hours and the second for six months in 37°C distilled water and tested in shear. Failure mode was also determined for each specimen. Results A three-way analysis of variance (ANOVA) found a significant difference between groups based on bonding agent (p&lt;0.001) and surface treatment (p&lt;0.001) but not on time (p=0.943), with no significant interaction (p&gt;0.05). Clearfil SE in etch-and-rinse and self-etch modes had more mixed fractures than either universal adhesive in either mode. Conclusions Etching enamel significantly increased the SBS of composite to enamel. Clearfil SE had significantly greater bond strength to enamel than either universal adhesive, which were not significantly different from each other.

Sign in / Sign up

Export Citation Format

Share Document