scholarly journals Microtensile bond strength test and failure analysis to assess bonding characteristics of different adhesion approaches to ground versus unground enamel

2011 ◽  
Vol 22 (2) ◽  
pp. 122-128 ◽  
Author(s):  
Vinicius Di Hipólito ◽  
Roberta Caroline Bruschi Alonso ◽  
Marcela Rocha de Oliveira Carrilho ◽  
Camillo Anauate Netto ◽  
Mário Alexandre Coelho Sinhoreti ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Adhesive System ◽  
Cohesive Failure ◽  
Microtensile Bond Strength ◽  
Failure Patterns ◽  
Bonding System ◽  
Bonding Systems ◽  
Self Etch ◽  
Bonding Characteristics

This study evaluated the bonding characteristics to ground and unground enamel obtained with different strategies. For this purpose, 24 sound third-molars were bisected mesiodistally to obtain tooth halves. A flat enamel area was delimited in the tooth sections, which were randomly distributed into 8 groups (n=6), according to the enamel condition (ground and unground) and adhesive system (Adper Single Bond 2 - SB2; Adper Prompt L-Pop - PLP; Adper Prompt - AD; Clearfil SE Bond - SE). Each system was applied according manufacturers' instructions and a 6-mm-high resin composite "crown" was incrementally built up on bonded surfaces. Hourglass-shaped specimens with 0.8 mm² cross-section were produced. Microtensile bond strength (μTBS) was recorded and the failure patterns were classified. Results were analyzed by two-way ANOVA and Tukey's test (α=0.05). There were no statistically significant differences among the μTBS values of SB2, PLP and AD (p>0.05). SE values were significantly lower (p0.05). There was prevalence of cohesive failure within enamel, adhesive system and resin composite for SB2. The self-etch systems produced higher incidence of cohesive failures in the adhesive system. Enamel condition did not determine significant differences on bonding characteristics for the same bonding system. In conclusion, the bonding systems evaluated in this study resulted in specific μTBS and failure patterns due to the particular interaction with enamel.

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.

Bond Strength Comparison of Orthodontic Bonding Systems: A Systematic Review

2019 ◽  
pp. 20-26
Author(s):  
Tubayesha Hassan ◽  
MH Sattar
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Dental Treatment ◽  
Enamel Surface ◽  
Adhesive Systems ◽  
Scientific Review ◽  
Bonding System ◽  
Etch And Rinse ◽  
Bonding Systems ◽  
Self Etch

As a means of regular practice in orthodontics and aesthetic dentistry, resin based adhesive systems are being used exclusively. Keeping up with the ever-increasing demand for aesthetic dental treatment all over the world, newer and more improved adhesive systems have been developed. However, regarding the comparison as to which bonding system performs better in clinical perspective, there is lack of existing scientific review articles. In this review, we tend to explore the conventional etch and rinse bonding system and the self-etch primer bonding system. The different tests to assess and compare bond strength between these two types of adhesives from various bibliography are discussed. The results of shear bond strength test, adhesive remnant index (ARI), enamel-adhesive interface using scanning electron microscope (SEM) and the effect of saliva contamination and time are discussed. Interestingly, each system has its strengths and weaknesses. In shear bond strength, self-etch bonding systems clearly exhibits less strength than conventional bonding systems. Resin tags into enamel surface are shorter in self-etch primer adhesives which results from milder etching to enamel compared to the conventional aid-etch and rinse adhesives. Contrarily, the irreversible changes to enamel surface is more aggressive in conventional acid-etching which states that self-etching systems are better according to the principles of minimal intervention dentistry. Ban J Orthod & Dentofac Orthop, April 2017; Vol-7 (1-2), P.20-26

scholarly journals The Effect of SnCl2/AmF Pretreatment on Short- and Long-Term Bond Strength to Eroded Dentin

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Katrin Zumstein ◽  
Anne Peutzfeldt ◽  
Adrian Lussi ◽  
Simon Flury
Keyword(s):  
Bond Strength ◽  
Failure Mode ◽  
Resin Composite ◽  
Adhesive System ◽  
Adhesive Systems ◽  
Short And Long Term ◽  
One Year ◽  
And Storage ◽  
Self Etch

This study investigated the effect of SnCl2/AmF pretreatment on short- and long-term bond strength of resin composite to eroded dentin mediated by two self-etch, MDP-containing adhesive systems. 184 dentin specimens were produced from extracted human molars. Half the specimens (n=92) were artificially eroded, and half were left untreated. For both substrates, half the specimens were pretreated with SnCl2/AmF, and half were left untreated. The specimens were treated with Clearfil SE Bond or Scotchbond Universal prior to application of resin composite. Microtensile bond strength (μTBS) was measured after 24 h or 1 year. Failure mode was detected and EDX was performed. μTBS results were statistically analyzed (α=0.05). μTBS was significantly influenced by the dentin substrate (eroded < noneroded dentin) and storage time (24 h > 1 year; p<0.0001) but not by pretreatment with SnCl2/AmF or adhesive system. The predominant failure mode was adhesive failure at the dentin-adhesive interface. The content of Sn was generally below detection limit. Pretreatment with SnCl2/AmF did not influence short- and long-term bond strength to eroded dentin. Bond strength was reduced after storage for one year, was lower to eroded dentin than to noneroded dentin, and was similar for the two adhesive systems.

scholarly journals Aplikasi klorheksidin glukonat 2%pada dentin tidak mempengaruhi kuat rekat geserkomposit resinyangmenggunakansistem adesif self etch (2% Chlorhexidine gluconate application on dentine does not affect bond strength of resin composite using self etch adhesive system)

2014 ◽  
Vol 13 (1) ◽  
pp. 7
Author(s):  
Dewi Puspitasari ◽  
Andi Soufyan ◽  
Ellyza Herda
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Resin Composite ◽  
Testing Machine ◽  
Adhesive System ◽  
Chlorhexidine Gluconate ◽  
Adhesive Systems ◽  
Group I ◽  
Self Etch

Composite resin is a widely used aesthetic restoration. The restoration can fail due to secondary caries. Chlorhexidinegluconate 2% is used as a cavity disinfectant to eliminate microorganisms on the prepared cavity and to prevent thesecondary caries. The purpose of this study was to analyze the effect of chlorhexidine gluconate 2% to the bondstrength of composite resin with self etch system adhesive on dentine. Sixteen specimens of buccal dentine of premolarscrown are divided into 2 different groups. Group I: Clearfil SE Bond self-etch primer was applied for 20 seconds,Clearfil SE Bond bonding was applied for 5 seconds and polymerized for 10 seconds. Composite resin was constructedincrementally and polymerized for 20 seconds. Group II: prior to self etch primer application as in group I,chlorhexidine gluconate 2% was applied for 15 seconds. Shear bond strength was tested using Testing machine andanalyzed with unpaired T test. The highest shear bond strength was obtained by applying chlorhexidine gluconate 2%.The study concludes that chlorhexidine gluconate 2% application to dentine did not affect significantly to the bondstrength composite resin using self etch adhesive systems.

scholarly journals The Effect Of Self-Etch And Total-Etch Bonding Systems Application On Microleakage Of Bulkfill Flowable Composite Restoration In Carbonated Drink Immersion

2020 ◽  
Vol 9 (2) ◽  
pp. 87
Author(s):  
Widya Saraswati ◽  
Auryn Thania Song Hadinata ◽  
Sukaton Sukaton
Keyword(s):  
Methylene Blue ◽  
Resin Composite ◽  
Bonding Agent ◽  
Control Group ◽  
Flowable Composite ◽  
Bonding System ◽  
Bonding Systems ◽  
Self Etch ◽  
Carbonated Drink ◽  
Composite Restoration

Background: Resin composite is more advanced today, but the marginal leakage still can not be avoided, for it takes the bonding system. Bonding system aims to provide a layer between a substrate and composite so it has a strong bond . The current latest bonding system is called universal bonding. It can be used with 2 techniques, both self etch and total etch. Universal bonding contains 10MDP so there’s no need for etching and priming. 10MDP results in better adhesion than previous bonding monomers  generation. A total etch technique  require a pre-etching step to remove smear layer so that it formed porous as a retentive sites. Purpose : Distinguish the marginal leakage of flowablebulkfill composite overlays with the application of total etch and self etch bonding systems accompanied by immersion of carbonated beverages . Method: Tooth samples were prepared to a depth of 2mm, then the bonding agent was applied directly to the cavity without etching (self etch), etched before the application of bonding agent (total etch ), directly loaded without pre-etching and bonding (control) . using a flowablebulkfill composite as a material restorative. All of the sample both total etch and self-etch  soaked in Cola drinks for 5 minutes then repeated until 10 treatment each day (one day is assumed to be 12 hours) up to 7 days, followed by immersion in the methylene blue 0.5 % for 24 hours . Sample then splittedbuccolingual direction, leakage was assessed by scoring the edge trough the depth of methylene blue penetration.  Result:  Mann-Whitney Test showed a significant differences (P>0.05 ) each group . Conclusion: Marginal leakage of composite restoration with total etch technique and self etch technique is smaller than the control group, and the marginal leakage of composite restoration with total etch technique is smaller than that of self etch group .

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 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 Resin Bonding of Self-Etch Adhesives to Bovine Dentin Bleached from Pulp Chamber

2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Akiko Haruyama ◽  
Atsushi Kameyama ◽  
Junji Kato ◽  
Shinji Takemoto ◽  
Yutaka Oda ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Adhesive System ◽  
Unit Group ◽  
Tooth Bleaching ◽  
Pulp Chamber ◽  
Halogen Light ◽  
Group 2 ◽  
Self Etch ◽  
Group 1

This study evaluated the microtensile bond strength (μTBS) of 1-step self-etch adhesives (1-SEAs) and 2-step self-etch adhesives (2-SEAs) to pulp chamber dentin immediately after bleaching with 2 types of common bleaching techniques. Pulp chamber dentin of bovine teeth was bleached using 30% hydrogen peroxide (H2O2) solution with quartz-tungsten-halogen light-curing unit (Group 1) and 3.5% H2O2-containing titanium dioxide (TiO2) (Pyrenees®) activated with 405-nm violet diode laser for 15 min (Group 2). Unbleached specimens were placed in distilled water for 15 min and used as controls. After treatment, dentin was bonded with resin composite using 1-SEA or 2-SEA and stored in water at 37°C for 24 h. Each specimen was sectioned and trimmed to an hourglass-shape andμTBS was measured. Fractured specimens were examined under a scanning electron microscope to determine fracture modes. All specimens in Group 1 failed before proper bonding tests. In Group 2, theμTBS of 2-SEA was significantly greater (with no failed specimens) than 1-SEA (where 21 out of 36 failed). These results indicate that 2-SEA is a better adhesive system than 1-SEA on bleached dentin. Our results also demonstrated that application of H2O2significantly decreases bond strength of resin to dentin; however, in the case of nonvital tooth bleaching, Pyrenees® is a better alternative to the conventional 30% H2O2bleaching.

scholarly journals The Effect of Biodentine Maturation Time on Resin Bond Strength When Aged in Artificial Saliva

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Ruba M. Mustafa ◽  
Suhad J. Al-Nasrawi ◽  
Abtesam I. Aljdaimi
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Artificial Saliva ◽  
Adhesive System ◽  
Failure Patterns ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Post Hoc ◽  
Composite Restoration

Biodentine is a calcium silicate cement (CSC) that has been broadly applied in vital pulp therapy. The quality of the Biodentine-composite bond has a significant effect on the longevity of the definitive restoration. The aim of this study is to investigate the shear bond strength (SBS) between Biodentine and composite restoration at different maturation times of Biodentine aged in artificial saliva. Fifteen Biodentine discs were allocated into three groups (n = 5) based on the timeframe of performance of composite restoration: immediate (after 12  min), after 14 days, and after 28 days of Biodentine maturation. Total etch and rinse adhesive system and bulk-fill regular resin composite were used. The shear bond strength and the failure pattern were assessed. One-way ANOVA with the Bonferroni post hoc test was applied for statistical analysis at p < 0.05 . The highest (32.47 ± 8.18 MPa) and the lowest (4.08 ± 0.81 MPa) SBS values were recorded for 14 days and 12 min groups, respectively. Significant statistical differences were reported among the groups, and a high statistically significant difference was found between the immediate group and the other groups. Adhesive failure patterns were evident in all groups. More clinically acceptable bond strength between the Biodentine and overlaid composite restoration is at 14 days after Biodentine maturation. Delaying the coverage of Biodentine later than 14 days may significantly reduce the SBS. Using the artificial saliva as an aging medium may affect the SBS between Biodentine and composite material.

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.

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