scholarly journals Effect of Double Coating of One-step Self-etching Adhesive on Micromorphology and Microtensile Bond Strength to Sound vs Demineralized Dentin

2014 ◽  
Vol 15 (4) ◽  
pp. 385-391 ◽  
Author(s):  
Cerida Aurelia Rodrigues Oliveira ◽  
Fabiana Mantovani Gomes França ◽  
Roberta Tarkany Basting ◽  
Cecília Pedroso Turssi ◽  
Flavia Lucisano Botelho do Amaral
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Adhesive System ◽  
Microtensile Bond Strength ◽  
Adhesive Layers ◽  
Application Method ◽  
One Step ◽  
The One ◽  
Demineralized Dentin ◽  
Double Coating

ABSTRACT Aim The purpose of the present study was to evaluate (1) the one-step adhesive system application method (doubling the adhesive coatings) in regard to microtensile bond strength (MTB) and (2) the interfacial morphology of one-step adhesives to sound vs demineralized dentin. Materials and methods Forty dentin fragments were randomly allocated to 2 groups: D. demineralized dentin and S. sound dentin. Specimens were also subdivided into 2 groups (n = 10), according to the one-step adhesive [AEO (Adper Easy One), 3M ESPE] application method: M, According to the manufacturer's instructions, and D, based on the application of two consecutive layers. After adhesive light polymerization, a resin composite block (Filtek Z250, 3M ESPE) was built on the dentin surface. Resin-tooth blocks were sectioned into 0.9 mm thick slabs, and one slab of each block was prepared for adhesive interface analysis by scanning electron microscopy (SEM). The remaining slabs were sectioned into 0.8 mm2 sticks that were subjected to tensile stress (0.5 mm/min). Data were subjected to two-way ANOVA and Tukey's test (α = 0.05). Results The application of two consecutive layers of AEO adhesive system did not influence MTB values for sound dentin. When two consecutive layers of one-step adhesive system were applied, MTB was statistically greater in demineralized vs sound dentin. SEM analysis demonstrated that the application of two consecutive adhesive layers to sound and demineralized dentin produced longer resin tags. Conclusion It can be concluded that the application of two consecutive adhesive layers improved bond strength to demineralized dentin, but no such effect was observed for sound dentin. Clinical significance Application of double coats of one-step self-etching adhesive improved bond strength to demineralized dentin. How to cite this article Oliveira CAR, França FMG, Basting RT, Turssi CP, do Amaral FLB. Effect of Double Coating of One-step Self-etching Adhesive on Micromorphology and Microtensile Bond Strength to Sound vs Demineralized Dentin. J Contemp Dent Pract 2014;15(4):385-391.

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 Effect of Different Bonding Strategies on Adhesion to Deep and Superficial Permanent Dentin

2010 ◽  
Vol 04 (02) ◽  
pp. 110-117 ◽  
Author(s):  
Rafael Eduardo Fernandes Pegado ◽  
Flávia Lucisano Botelho do Amaral ◽  
Flávia Martão Flório ◽  
Roberta Tarkany Basting
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Testing Machine ◽  
Adhesive System ◽  
Single Bond ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
Universal Testing ◽  
One Step ◽  
The One

Objectives: To evaluate the effect of different bonding strategies on the microtensile bond strength to deep and superficial permanent dentin.Methods: Forty-eight teeth were randomly flattened according to the dentin depth: superficial dentin (SD) and deep dentin (DD). Subsequently, three adhesive systems were applied (n=8): an etchand- rinse (Adper Single Bond 2 - SB), a “mild” two-step self-etching (Clearfil SE Bond - SE) and a one-step self-etching adhesive system (Futurabond – FB). Each specimen was restored with a composite resin and sectioned into 1.0-mm2 thick slabs. After 24 hours, resin-dentin sticks were submitted to tensile stress in a universal testing machine (0.5 mm/min). Data were submitted to two-way ANOVA and Tukey’s test at a level of 0.05%.Results: Superficial dentin showed the highest microtensile bond strength values, which differed statistically from those obtained in the deep dentin, irrespective of the adhesive system used. FB yielded the highest bond strength values, which were statistically similar to the bond strength values of SE, but statistically different from those obtained when the SB adhesive was used.Conclusions: Bond strength obtained in superficial dentin was significantly higher than in deep dentin, for all adhesive systems tested. Adhesion was affected by the different bonding strategies: the one-step, low pH, acetone-based self-etching adhesive promoted the higher bond strength values, which were statistically similar to those obtained with the two-step, water-based self-etching adhesive. (Eur J Dent 2010;4:110-117)

scholarly journals Effect of Non-Thermal Argon Plasma on Bond Strength of a Self-Etch Adhesive System to NaOCl-Treated Dentin

2016 ◽  
Vol 27 (4) ◽  
pp. 446-451 ◽  
Author(s):  
João Luiz Bittencourt de Abreu ◽  
Maíra Prado ◽  
Renata Antoun Simão ◽  
Eduardo Moreira da Silva ◽  
Katia Regina Hostilio Cervantes Dias
Keyword(s):  
Bond Strength ◽  
Plasma Treatment ◽  
Ftir Spectroscopy ◽  
Resin Composite ◽  
Argon Plasma ◽  
Adhesive System ◽  
Strength Test ◽  
Chemical Modifications ◽  
Microtensile Bond Strength ◽  
Self Etch

Abstract Studies have been showing a decrease of bond strength in dentin treated with sodium hypochlorite (NaOCl). The aim of this study was to evaluate the effect of non-thermal argon plasma on the bond strength of a self-etch adhesive system to dentin exposed to NaOCl. Thirty-two flat dentin surfaces of bovine incisors were immersed in 2.5% NaOCl for 30 min to simulate the irrigation step during endodontic treatment. The specimens were divided into four groups (n=8), according to the surface treatment: Control (without plasma treatment), AR15 (argon plasma for 15 s), AR30 (argon plasma for 30 s) and AR45 (argon plasma for 45 s). For microtensile bond strength test, 5 specimens were used per group. In each group, the specimens were hybridized with a self-etch adhesive system (Clearfil SE Bond) and resin composite buildups were constructed. After 48 h of water storage, specimens were sectioned into sticks (5 per tooth, 25 per group) and subjected to microtensile bond strength test (μTBS) until failure, evaluating failure mode. Three specimens per group were analyzed under FTIR spectroscopy to verify the chemical modifications produced in dentin. μTBS data were analyzed using ANOVA and Tamhane tests (p<0.05). AR30 showed the highest μTBS (20.86±9.0). AR15 (13.81±6.4) and AR45 (11.51±6.8) were statistically similar to control (13.67±8.1). FTIR spectroscopy showed that argon plasma treatment produced chemical modifications in dentin. In conclusion, non-thermal argon plasma treatment for 30 s produced chemical changes in dentin and improved the μTBs of Clearfil SE Bond to NaOCl-treated dentin.

scholarly journals Chitosan in different concentrations added to a two-step etch-and-rinse adhesive system: influence on bond strength to dentin

2017 ◽  
Vol 20 (4) ◽  
pp. 55
Author(s):  
Rafael Avellar de Carvalho Nunes ◽  
Flávia Lucisano Botelho do Amaral ◽  
Fabiana Mantovani Gomes França ◽  
Cecilia Pedroso Turssi ◽  
Roberta Tarkany Basting
Keyword(s):  
Bond Strength ◽  
Failure Mode ◽  
Failure Modes ◽  
Resin Composite ◽  
Adhesive System ◽  
Fracture Pattern ◽  
Test Machine ◽  
Microtensile Bond Strength ◽  
Etch And Rinse ◽  
Strength Tests

<p class="Corpo"><strong>Objective</strong>: the aim of the present study was to evaluate the influence of adding different concentrations of chitosan to an experimental two-step etch-and-rinse adhesive system on the bond strength and failure mode to dentin. <strong>Material</strong> <strong>and</strong> <strong>Methods</strong>: thirty-two flat dentin surfaces were obtained from extracted human third molars and divided into four groups  (n=8) for application of the adhesive systems: AD - conventional two-step adhesive system (Adper Single Bond 2); EXP – experimental two-step etch-and-rinse adhesive system; Chi0.2% - EXP with addition of 0.2% Chitosan; Chi0.5% - EXP with addition of 0.5% Chitosan. Resin composite build-ups were made and the composite/dentin specimens were sectioned to obtain rectangular beams with a bond area of approximately 1mm<sup>2</sup>. After 24 hours, the sticks were submitted to microtensile bond strength tests in a universal test machine. The fracture pattern was evaluated under a stereoscopic loupe at 40X magnification. <strong>Results</strong>: one-way analysis of variance showed that the type of adhesive system had no significant effect on the bond strength values (p = 0.142), showing the mean bond strength values (standard deviation), in MPa, for the groups as follows: AD=20.1 (5.4); EXP=16.6 (2.3); Chi0.2%=16.1 (2.8); Chi0.5%=16.9 (2.3). In all the groups there was predominance of cohesive fractures in dentin, representing 68 to 82% of the failure modes. <strong>Conclusion</strong>: the addition of 0.2 or 0.5% of chitosan had no influence on the bond strength and failure mode of an experimental two-step etch-and-rinse adhesive system to dentin.</p><p class="Corpo"><strong>Keywords</strong></p><p class="Corpo">Chitosan; Dental Adhesives; Failure Mode; Microtensile Bond Strength.</p>

scholarly journals Bond Strength of One-Step Adhesives under Different Substrate Moisture Conditions

2009 ◽  
Vol 03 (04) ◽  
pp. 290-296 ◽  
Author(s):  
André Luís Faria-e-Silva ◽  
Mayra Melo Fabião ◽  
Ravana Angelini Sfalcin ◽  
Murilo de Souza Meneses ◽  
Paulo César Freitas Santos-Filho ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Adhesive System ◽  
Moisture Condition ◽  
Direction Parallel ◽  
Bond Performance ◽  
Failure Data ◽  
One Step ◽  
Substrate Moisture ◽  
Moisture Conditions

ABSTRACTObjectives: The aim of this study was to evaluate the bond strength of one-step adhesive systems to dry or moist dental substrate.Methods: Thirty human third molars were sectioned into two halves, in the mesio-distal direction, parallel to the long axis of the tooth. Each half was embedded in a polystyrene resin cylinder so that the buccal/lingual surface remained exposed. This exposed surface was abraded to obtain both flat exposed enamel and dentin. The samples were randomly allocated according to the adhesive system (Xeno III, Adper Prompt and iBond) and moisture condition (dry and moist). The substrates were air-dried for 30 s for dry condition, while the moist substrates were re-wet with 2.5 µl of distilled water after drying. After the adhesive procedures, two resin composite cylinders were build-up on dentin and enamel substrates, totaling four per sample. A shear load was applied to the samples at a crosshead speed of 0.5 mm/min until failure. Data were statistically analyzed by three-way ANOVA and the Tukey test (α=0.05).Results: The evaluated one-step adhesives showed higher bond strength to dentin than enamel. The iBond presented better bond performance to moist substrate and Xeno III to dry substrate. The moisture condition did not interfere in the performance of Adper Prompt. The Xeno III and iBond presented higher bond strength than the other adhesives to both dry and moist substrates.Conclusions: The moisture condition of substrate interfered in the performance of one-step selfetching adhesives and the best moisture condition was material dependent. (Eur J Dent 2009;3:290-296)

scholarly journals Interaction morphology and bond strength of nanofilled simplified-step adhesives to acid etched dentin

2012 ◽  
Vol 06 (04) ◽  
pp. 349-360 ◽  
Author(s):  
Vinicius Di Hipólito ◽  
André Figueiredo Reis ◽  
Sumita B Mitra ◽  
Mario Fernando de Goes
Keyword(s):  
Bond Strength ◽  
Colloidal Silica ◽  
Resin Composite ◽  
Adhesive Layer ◽  
Single Bond ◽  
Hybrid Layer ◽  
Microtensile Bond Strength ◽  
Tem Analysis ◽  
Cross Sectional ◽  
Adhesive Layers

ABSTRACTObjective: To evaluate the effect of nanofillers incorporated into adhesives on the microtensile bond strength (μ-TBS) and interfacial micromorphology to dentin.Methods: The occlusal enamel of 5 human molars was removed and each tooth sectioned into four quarters. The exposed dentin was treated with one of the following adhesives: Adper Single Bond (SB-unfilled), OptiBond Solo Plus (OS-barium aluminoborosilicate, 400nm Ø), Prime & Bond NT (NT-colloidal silica, 7-40 nm Ø) and Adper Single Bond 2 (SB2-colloidal silica, 5nm Ø). Cylinders of resin-based composite were constructed on the adhesive layers. After 24-hour storage, the restored tooth-quadrants were sectioned to obtain stick-shaped specimens (0.8 mm2, cross-sectional area) and submitted to μ-TBS at a cross-speed of 0.5 mm/min. Data were analyzed using one-way ANOVA and Tukey’s test (alpha = .05). Twenty-eight additional teeth were used for interfacial micromorphologic analysis by SEM (16-teeth) and TEM (12-teeth). The dentin surfaces of 32 discs were treated with the adhesives (8 discs for adhesive) and laminated to form disc-pairs using a flowable resin composite for SEM/EDS analysis. For TEM, 90nm-thick nondemineralized unstained sections were processed.Results: SB2 showed significant higher bond strength than SB, OS and NT. The SEM/EDS and TEM analysis revealed nanofillers infiltrated within the interfibrillar spaces of the SB2-hybrid layer. Fillers were concentrated around patent tubular orifices and in the adhesive layer for OS and NT.Conclusion: The presence of nanofillers within the interfibrillar spaces of the SB2-hybrid layer suggests its importance in the improvement of the μ-TBS. (Eur J Dent 2012;6:349-360)

scholarly journals Adhesives Doped with Bioactive Niobophosphate Micro-Filler: Degree of Conversion and Microtensile Bond Strength

2016 ◽  
Vol 27 (6) ◽  
pp. 705-711 ◽  
Author(s):  
Karina Kato Carneiro ◽  
Marcia Margarete Meier ◽  
Clenilton Costa dos Santos ◽  
Adeilton Pereira Maciel ◽  
Ceci Nunes Carvalho ◽  
...  
Keyword(s):  
Bond Strength ◽  
Bioactive Glass ◽  
Adhesive System ◽  
Degree Of Conversion ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
Glass Addition ◽  
Etch And Rinse ◽  
One Step ◽  
Niobium Phosphate

Abstract To evaluate the effect of incorporating niobium phosphate bioactive glass (NbG) into commercial etch-and-rinse adhesive systems, with and without silane, on their degree of conversion (DC) (%) and microtensile bond strength (μTBS). The NbG micro-filler was added to two etch-and-rinse adhesive systems: One Step (OS) and Prime & Bond (PB) at 40% concentration. The following groups were formed: control without glass addition OS; addition of unsilanized NbG (OSNbG); addition of silanized NbG (OSNbGS); control without glass PB; addition of unsilanized NbG (PBNbG); addition of silanized NbG (PBNbGS). The DC was determined using total Fourier spectroscopy reflection (FTIR/ATR). For μTBS testing, 48 human third molars (n=8) were restored and sliced to obtain specimens (0.8 mm2) and they were tested at two different time intervals: immediately and after 6 months. The fracture mode was evaluated with a stereoscopic loupe (40×) and by scanning electron microscopy (SEM). The data were subjected to ANOVA and Tukey tests (a=0.05). NbG addition did not compromise the adhesive system DC values (p>0.05). Furthermore, the NbG added to the adhesive systems did not affect μTBS values (p>0.05). Fracture occurred predominantly at the dentin-adhesive interface. NbG bioactive glass did not affect the DC or microtensile bond strength results.

scholarly journals Bond strength of universal adhesive applied to dry and wet dentin

2020 ◽  
Vol 19 ◽  
pp. e201662
Author(s):  
Maria Luísa de Alencar e Silva Leite ◽  
Caroline de Farias Charamba ◽  
Renally Bezerra Wanderley e Lima ◽  
Sônia Saeger Meireles ◽  
Rosângela Marques Duarte ◽  
...  
Keyword(s):  
Bond Strength ◽  
Storage Time ◽  
Resin Composite ◽  
Adhesive System ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Bonding Quality ◽  
Etch And Rinse ◽  
Significant Difference ◽  
One Year

Aim: This study evaluated the influence of dentin wettability on the immediate and extended microtensile bond strength (mTBS) of a universal adhesive system used in the etch-and-rinse strategy. Methods: Twenty human third molars were selected and divided into four groups according to the adhesive system and dentin wettability. The mTBS values of each group were registered 24 h and one year after adhesive system application and resin composite block build-up (n=30). Data were analyzed by the t-test (p<0.05). Results: When both adhesive systems were compared, there was no statistically significant difference when they were applied following wet bonding (p>0.05). However, the dry bonding reduced μTBS values of the Adper Single Bond 2 adhesive (p<0.05). Regarding storage time, both groups presented similar μTBS values at 24 h and one year (p>0.05). Conclusions: Therefore, the Scotchbond Universal Adhesive can be applied to dry or wet dentin without compromising the etch-and-rinse bonding quality and the durability of the restorations.

Adhesive Bond Strengths Using Self- and Light-Cured Composites

2009 ◽  
Vol 10 (6) ◽  
pp. 25-32 ◽  
Author(s):  
Ricardo Walter ◽  
Georgia V. Macedo ◽  
Gustavo M. S. Oliveira ◽  
Edward J. Swift
Keyword(s):  
Resin Composite ◽  
Adhesive Bond ◽  
Adhesive System ◽  
Resin Composites ◽  
Microtensile Bond Strength ◽  
Microtensile Testing ◽  
Etch And Rinse ◽  
Occlusal Surfaces ◽  
One Step ◽  
Bond Strengths

Abstract Aim To evaluate the microtensile bond strength (μTBS) of four adhesive systems to dentin, using self- and light-cured resin composites. Methods and Materials Crowns of human molars were separated from the roots, and the occlusal surfaces were ground to obtain flat superficial dentin. Three etch-and-rinse adhesives—All-Bond 2, One-Step Plus, and OptiBond Solo Plus—and one self-etching primer system, Peak SE, were evaluated. Each adhesive group was divided into two subgroups according to the type of resin composite used. A self-cured (Bisfil 2B) or light-cured (Filtek Supreme Plus) resin composite build-up was incrementally inserted to the dentin after each adhesive system was applied. The bonded specimens were stored in water for 24 h and sectioned into beams. Microtensile testing was done, and the data were subjected to ANOVA and Fisher's PLSD test. Results The μTBS of All-Bond 2 and One- Step Plus was not affected by the type of resin composite used (p=0.3131 and p=0.1562, respectively). The μTBS of OptiBond Solo Plus was significantly reduced when used with selfcured resin composite (p<0.0001). Peak SE formed no bond of self-cured resin composite to dentin. Conclusions Some adhesives do not effectively bond self-cured resin composite to dentin. Clinical Significance Incompatibility between adhesives with low pH and certain self-cured resin composites can cause clinical debonding of restorations. Citation Walter R, Macedo GV, Oliveira GMS, Swift Jr EJ. Adhesive Bond Strengths Using Self- and Light-Cured Composites. J Contemp Dent Pract [Internet]. 2009 Nov; 10(6):025-032. Available from: http://www.thejcdp.com/journal/ view/volume10-issue6-walter.

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