scholarly journals Microtensile Bond Strength of Etch-and-Rinse Adhesives in Different Hydroabrasion Conditionings

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Michele Tepedino ◽  
Maciej Iancu Potrubacz ◽  
Antonella Imperiale ◽  
Claudio Chimenti ◽  
Mario Capogreco ◽  
...  
Keyword(s):  
Bond Strength ◽  
Adhesive System ◽  
Mode Analysis ◽  
Microtensile Bond Strength ◽  
Cavity Preparation ◽  
Etch And Rinse ◽  
Failure Mode Analysis ◽  
Bond Strengths ◽  
Dentin Conditioning

The aim of the present study was to in vitro evaluate the effect of dentin conditioning with hydroabrasion on the microtensile bond strengths of three adhesive systems, compared to the standard etch-and-rinse technique. Sixty extracted human third molars were collected, and their midcoronal occlusal dentin was used for the microtensile bond strength test. Teeth were randomly assigned to three groups according to the adhesive system used: ExciTE F DSC, ENA Bond, and Scotchbond Universal. Specimens from each group were further divided into four subgroups: control specimens were treated with standard adhesive procedures; hydroabraded (HA) specimens were subjected to preventive hydroabrasion with three different intensity levels. After bonding procedures, composite crowns were incrementally built up. After thermocycling, specimens were subsequently sectioned into 1 × 1 mm sticks, and microtensile bond strengths were measured. Data were statistically analyzed. Failure mode analysis was performed. There were no significant differences in terms of bond strength between standard adhesion protocols and adhesion with HA preconditionings. On the other hand, the type of adhesive used had a significant effect on the tensile bond strength. Subgroups treated with hydroabrasion at higher intensity showed a slightly increased frequency of cohesive fractures. In conclusion, hydroabrasion can be used for dentin cavity preparation or finishing, since it does not seem to affect the bonding effectiveness.

scholarly journals In Vivo and In Vitro Effects of Chlorhexidine Pretreatment on Immediate and Aged Dentin Bond Strengths

2016 ◽  
Vol 41 (3) ◽  
pp. 258-267 ◽  
Author(s):  
Z Gunaydin ◽  
AR Yazici ◽  
ZC Cehreli
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Adhesive System ◽  
Etch And Rinse ◽  
Bonferroni Test ◽  
Bond Strengths ◽  
In Vitro Effects ◽  
Self Etch

SUMMARY This study evaluated the effect of 2% chlorhexidine (CHX) pretreatment of dentin on the immediate and aged microtensile bond strength (μTBS) of different adhesives to dentin in vivo and in vitro. Class I cavities were prepared in 80 caries-free human third molars of 40 patients in a split-mouth fashion. In each tooth pair, one tooth received 2% CHX pretreatment after which both teeth were randomly assigned to one of the following groups with respect to the type of adhesive system applied: Adper Single Bond 2 (etch-and-rinse), Clearfil SE Bond (two-step self-etch), Clearfil S3 Bond (one-step self-etch), and Adper Prompt-L-Pop (all-in-one self-etch). The teeth were restored with resin composite and extracted for μTBS testing either immediately or after six months in function. In vitro specimen pairs were prepared as with the clinical protocol in intact, freshly extracted human molars, and thereafter, subjected to testing immediately or after 5000× thermocycling. Data were analyzed with four-way analysis of variance (ANOVA). Bonferroni test was utilized for pair-wise comparisons. The immediate bond strength values were significantly higher than “aged” ones for all tested adhesives (p=0.00). The in vitro immediate bond strength values were statistically higher than in vivo bond strength values (p<0.05). While the bond strength of in vitro aged, CHX-treated samples were higher than their in vivo counterparts (p<0.05), no difference was observed in non-CHX treated groups (p>0.05). In the absence of CHX pretreatment, all adhesives showed significantly higher immediate bond strength values than CHX-treated groups, while all “aged”, non-pretreated adhesives exhibited significantly lower bond strength values (both p<0.05). By contrast, chlorhexidine pretreatment resulted in significantly higher aged bond strengths, regardless of the adhesive system and testing condition. Aging-associated decline in dentin bond strength of etch-and rinse and self-etch adhesives can be counteracted by chlorhexidine application.

scholarly journals Effect of Airborne Particle Abrasion on Microtensile Bond Strength of Total-Etch Adhesives to Human Dentin

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Maurizio D’Amario ◽  
Chiara Piccioni ◽  
Stefano Di Carlo ◽  
Francesca De Angelis ◽  
Silvia Caruso ◽  
...  
Keyword(s):  
Bond Strength ◽  
Failure Mode ◽  
Adhesive System ◽  
Mode Analysis ◽  
Airborne Particle ◽  
Microtensile Bond Strength ◽  
Failure Data ◽  
Multiple Beams ◽  
Failure Mode Analysis ◽  
Human Dentin

Aim of this study was to investigate a specific airborne particle abrasion pretreatment on dentin and its effects on microtensile bond strengths of four commercial total-etch adhesives. Midcoronal occlusal dentin of extracted human molars was used. Teeth were randomly assigned to 4 groups according to the adhesive system used: OptiBond FL (FL), OptiBond Solo Plus (SO), Prime & Bond (PB), and Riva Bond LC (RB). Specimens from each group were further divided into two subgroups: control specimens were treated with adhesive procedures; abraded specimens were pretreated with airborne particle abrasion using 50 μm Al2O3before adhesion. After bonding procedures, composite crowns were incrementally built up. Specimens were sectioned perpendicular to adhesive interface to produce multiple beams, which were tested under tension until failure. Data were statistically analysed. Failure mode analysis was performed. Overall comparison showed significant increase in bond strength (p<0.001) between abraded and no-abraded specimens, independently of brand. Intrabrand comparison showed statistical increase when abraded specimens were tested compared to no-abraded ones, with the exception of PB that did not show such difference. Distribution of failure mode was relatively uniform among all subgroups. Surface treatment by airborne particle abrasion with Al2O3particles can increase the bond strength of total-etch adhesives.

scholarly journals Impact of radiotherapy on the bond strength of different adhesive systems to human dentin

2019 ◽  
Vol 18 ◽  
pp. e191638
Author(s):  
Renally Bezerra Wanderley Lima ◽  
Maria Luiza Pontual ◽  
Venâncio Fernandes Dantas ◽  
Sônia Saeger Meireles ◽  
Ana Karina Maciel Andrade ◽  
...  
Keyword(s):  
Bond Strength ◽  
Failure Modes ◽  
Adhesive System ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
Posterior Teeth ◽  
X Ray ◽  
Etch And Rinse ◽  
Human Dentin

Aim: The aim of this study is to evaluate the effect of radiotherapy on the bond strength of resin-based composite restorations to dentin, performed either 24 h or 1 year before or after radiation. Methods: Ninety-six posterior teeth were randomly distributed into the following groups: IB (n = 16), irradiated teeth were restored 1 year after x-ray application; NB (n = 16), not irradiated teeth were stored for 1 year and then restored. IA (n = 32), teeth were restored and irradiated at 24 h or 1 year after the restoration. NA (n = 32), teeth were restored, not irradiated, and tested as IA. Eight samples from each group were randomly assigned to either the three-step or two-step etch-and rinse adhesive system procedure. The irradiated specimens were subjected to 60 Gy of x-ray radiation fractionally. The restored teeth were vertically sectioned, and 1-mm2 resin–dentin sticks were obtained and submitted to the microtensile bond strength test. The bond strength data were analyzed by two-way analysis of variance (ANOVA) followed by Tukey’s test (p < 0.05). Failure modes were examined by optical microscopy and scanning electron microscopy. Results: The IB group showed lower bond strength values compared to the NB group. The bond strength values between the adhesive systems were not statistically different. Conclusion: The application of radiation dose decreased the bond strength of the adhesive restorations to dentin when the bonding procedure was conducted 1 year after in vitro radiotherapy.

Shear Bond Strength of Different Adhesive Systems to Primary Dentin and Enamel

2007 ◽  
Vol 31 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Carla Miranda ◽  
Luiz Henrique Maykot Prates ◽  
Ricardo de Souza Vieira ◽  
Maria Cristina Marino Calvo
Keyword(s):  
Bond Strength ◽  
Failure Mode ◽  
Shear Bond Strength ◽  
Adhesive System ◽  
Mode Analysis ◽  
Single Bond ◽  
Adhesive Systems ◽  
Mean Values ◽  
Failure Mode Analysis ◽  
Distal Direction

The aims of this study were to evaluate the shear bond strength (SBS) of four adhesive systems applied to primary dentin and enamel and verify, after SBS testing, the failure mode of the adhesive interface. Sixty extracted sound primary molars were selected and crowns were sectioned in a mesial-distal direction. Specimens were randomly assigned into two groups (adhesion to enamel and adhesion to dentin) and then subdivided into four subgroups according to the adhesive system (n=15): Scotchbond Multi-Purpose (SMP) – Single Bond (SB) – Clearfil SE Bond (and Adper Prompt LPop (APL) – SBS tests were performed and the obtained values were statistically analyzed using ANOVA and Tukey tests (p&lt;0.05). The failure mode analysis was performed with a Scanning Electron Microscope (XL-30, Philips). SBS mean values on enamel were [MPa (SD)]: SMP – 27.89 (7.49); SB – 23.92 (8.8); CSB – 24.36 (6.69); APL – 25.96 (4.08); and on dentin: SMP – 17.29 (4.25); SB – 18.2 (8.74); CSB – 16.13 (7.14); APL – 6.04 (3.35). The predominant failure mode was cohesive (primarily of the bonding agent). On enamel SBS was statistically similar for all four adhesives. On dentin SBS of APL was lower than the other tested adhesives.

Bond Strength of Two-Step Etch-and-Rinse Adhesive Systems to the Dentin of Primary and Permanent Teeth

2010 ◽  
Vol 35 (2) ◽  
pp. 163-168 ◽  
Author(s):  
Hérica Adad Ricci ◽  
Mariane Emi Sanabe ◽  
Carlos Alberto de Souza Costa ◽  
Josimeri Hebling
Keyword(s):  
Bond Strength ◽  
Adhesive System ◽  
Permanent Tooth ◽  
Permanent Teeth ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
Human Teeth ◽  
Cross Sectional ◽  
Etch And Rinse ◽  
The Mean

Objective: The purpose of this study was to compare the immediate microtensile bond strength (µTBS) of two-step etch-and-rinse adhesive systems to the dentin of primary and permanent teeth. Study Design: Non-carious human teeth (12 primary molars and 12 premolars) were assigned to 3 groups according to the adhesive system. The adhesive systems were applied to flat superficial coronal dentin surfaces etched with phosphoric acid and composite resin blocks were built up. The teeth were sectioned to produce beam-shaped specimens with 0.81 mm2 cross-sectional area subjected to µTBS testing. µTBS data were analyzed statistically by ANOVA and Tukey’s test (a= 0.05). Results: The adhesive systems produced statistically similar mean µTBS to each other (p&gt;0.05) and no significant differences (p&gt;0.05) were found when the same material was applied to primary or permanent tooth dentin. The mean µTBS values (MPa) obtained were: Prime& Bond NT: 41.7±14.4 (permanent) and 40.8±13.4 (primary); Single Bond: 42.9±8.6 (permanent) and 41.4±11.9 (primary); Excite DSC: 46.3±11.3 (permanent teeth) and 43.4±12.0 (primary). Conclusion:There was no difference in the immediate µTBS of two-step etch-and-rinse adhesive systems when applied to the dentin of primary and permanent teeth.

scholarly journals Effect of Two Antioxidants Agents on Microtensile Bond Strength to Bleached Enamel

2016 ◽  
Vol 27 (5) ◽  
pp. 532-536 ◽  
Author(s):  
Marina Studart Alencar ◽  
◽  
Juliana Fraga Soares Bombonatti ◽  
Rafael Massunari Maenosono ◽  
Ana Flávia Soares ◽  
...  
Keyword(s):  
Bond Strength ◽  
Sodium Bicarbonate ◽  
Artificial Saliva ◽  
Sodium Bicarbonate Solution ◽  
Sodium Ascorbate ◽  
Scanning Electron Microscopy Data ◽  
Microtensile Bond Strength ◽  
Etch And Rinse ◽  
Bovine Enamel

Abstract This in vitro study evaluated the effect of sodium bicarbonate and sodium ascorbate on the microtensile bond strength of an etch-and-rinse system to bleached bovine enamel. Sixty bovine enamel blocks (4x4 mm) were flattened and randomly allocated into 5 groups: G1 (negative control): without treatment; G2 (positive control): bleached with 35% hydrogen peroxide (HP); G3: bleached and stored for 7 days in artificial saliva before restorative procedures; G4: bleached and treated with 10% sodium bicarbonate solution for 5 min; G5: bleached and treated with 10% sodium ascorbate hydrogel for 15 min. HP gel was applied twice (20 min each, except in G1) and the adhesive restorations were performed. After 24 h, the specimens were sectioned into sticks and submitted to microtensile bond strength testing with a crosshead speed of 0.5 mm/min (n=12). As a complementary visual observation, the enamel surfaces of the G1 and G2 specimens were evaluated with scanning electron microscopy. Data were analyzed by one-way ANOVA (p<0.05). The means (standard deviation) were: G1: 24.22±7.74; G2: 18.29±5.88; G3: 40.88±7.95; G4: 19.95±5.67 and G5: 24.43±6.43. Adhesive failures were predominant in all groups. The comparison between the treatments indicates that waiting 7 days after bleaching is still the most effective approach. When this waiting period is not possible, application of sodium ascorbate or sodium bicarbonate seems to be a good alternative. Therefore, the practicality of obtaining sodium bicarbonate in the bleaching kits and its higher stability enables its clinical use.

scholarly journals Influence of Chlorhexidine and/or Ethanol Treatment on Bond Strength of an Etch-and-rinse Adhesive to Dentin: An In Vitro and In Situ Study

2014 ◽  
Vol 39 (1) ◽  
pp. 64-71 ◽  
Author(s):  
DMS Simões ◽  
RT Basting ◽  
FLB Amaral ◽  
CP Turssi ◽  
FMG França
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Adhesive System ◽  
Dentin Surface ◽  
In Vitro Aging ◽  
Etch And Rinse ◽  
Bond Interface ◽  
Vitro Model

SUMMARY The aim of this study was to evaluate the effect of a chlorhexidine and/or ethanol application on the bond strength of an etch-and-rinse, hydrophobic adhesive system either under in vitro aging or in situ cariogenic challenge. The dentin surface of 36 human third molars were flattened and allocated into four groups to be treated with chlorhexidine, ethanol, or chlorhexidine + ethanol or left unexposed to any solution (control) (n=9). Then, a resin composite restoration was made on the dentin surface and longitudinal sticks were obtained. Sticks from each tooth were assigned to three test conditions: stored in water in vitro for 24 hours, stored in water in vitro for 6 months, or worn in situ for 14 days. During in situ wear time, a high-cariogenic challenge condition was simulated. Specimens were tested for microtensile bond strength (μTBS). Multivariate analysis of variance and Tukey's test showed that chlorhexidine, ethanol, or chlorhexidine + ethanol did not affect the μTBS. The in vitro μTBS values were significantly lower for the specimens stored for 6 months than for those stored for 24 hours. Intermediate μTBS values were shown by the specimens worn in situ. Thus, use of chlorhexidine and/or ethanol was incapable of containing the degradation at the bond interface in the in vitro model. The in situ model was capable of reducing bond strength similarly to the in vitro/6 months model. Despite this, the in situ bond strength was still similar to that of the in vitro/24-hour model.

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 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 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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