scholarly journals Self-etch bonding agent beneath sealant: Bond strength for laser-irradiated enamel

2013 ◽  
Vol 07 (03) ◽  
pp. 289-295
Author(s):  
Maria Cristina Borsatto ◽  
Jackelline de Lemes Giuntini ◽  
Marta Maria Martins Giamatei Contente ◽  
Jaciara Miranda Gomes-Silva ◽  
Carolina Paes Torres ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Third Molar ◽  
Bonding Agent ◽  
Yag Laser ◽  
Fissure Sealant ◽  
Etch And Rinse ◽  
Pit And Fissure Sealant ◽  
Self Etch

ABSTRACT Objectives: This study evaluated the in vitro shear bond strength (SBS) of a resin-based pit-and-fissure sealant (Fluroshield [F], Dentsply/Caulk) associated with either an etch-and-rinse (Adper Single Bond 2 [SB], 3M/ESPE) or a two-step self-etch adhesive system (Adper SE Plus [SE], 3M/ESPE) on Er: YAG laser-irradiated enamel. Materials and Methods: Seventeen sound third molar crowns were embedded in acrylic resin, and the mesial-distal enamel surfaces were flattened. The enamel sites were irradiated with a 2.94-μm wavelength Er: YAG laser (120 mJ, 4 Hz, noncontact mode/17 mm, 20 s). The specimens were randomly assigned to three groups according to the bonding technique: I - 37% phosphoric acid etching + SB + F; II - SE + F and III - F applied to acid-etched enamel, without an intermediate layer of bonding agent. In all of the groups, a 3-mm diameter enamel-bonding site was demarcated and the sealant cylinders were bonded. After 24 hours in distilled water, the shear bond strength was tested at a crosshead speed of 0.5 mm/minute. The data were analyzed by one-way ANOVA and Tukey′s test. The debonded specimens were examined with a stereomicroscope to assess the failure modes. Results: The mean SBS values in MPa were I = 6.39 (±1.44); II = 9.50 (±2.79); and III = 5.26 (±1.82). No statistically significant differences were observed between groups I and III; SE/F presented a significantly higher SBS than that of the other groups (P = 0.001). With regard to the failure mode, groups I (65%) and II (75%) presented adhesive failures, while group III showed 50% adhesive failure. Cohesive failure did not occur. Conclusion: The application of the two-step self-etch bonding agent (Adper SE Plus) beneath the resin pit-and-fissure sealant placement resulted in a significantly higher bond strength for the Er:YAG laser-irradiated enamel.

scholarly journals Bond strength of a pit-and-fissure sealant associated to etch-and-rinse and self-etching adhesive systems to saliva-contaminated enamel: individual vs. simultaneous light curing

2008 ◽  
Vol 19 (4) ◽  
pp. 341-347 ◽  
Author(s):  
Jaciara Miranda Gomes-Silva ◽  
Carolina Paes Torres ◽  
Marta Maria Martins Giamatei Contente ◽  
Maria Angélica Hueb de Menezes Oliveira ◽  
Regina Guenka Palma-Dibb ◽  
...  
Keyword(s):  
Bond Strength ◽  
Failure Modes ◽  
Testing Machine ◽  
Adhesive System ◽  
Bonding Agent ◽  
Control Group ◽  
Fissure Sealant ◽  
Etch And Rinse ◽  
Light Curing ◽  
Pit And Fissure Sealant

This study evaluated in vitro the shear bond strength (SBS) of a resin-based pit-and-fissure sealant [Fluroshield (F), Dentsply/Caulk] associated with either an etch-and-rinse [Adper Single Bond 2 (SB), 3M/ESPE] or a self-etching adhesive system [Clearfil S3 Bond (S3), Kuraray Co., Ltd.] to saliva-contaminated enamel, comparing two curing protocols: individual light curing of the adhesive system and the sealant or simultaneous curing of both materials. Mesial and distal enamel surfaces from 45 sound third molars were randomly assigned to 6 groups (n=15), according to the bonding technique: I - F was applied to 37% phosphoric acid etched enamel. The other groups were contaminated with fresh human saliva (0.01 mL; 10 s) after acid etching: II - SB and F were light cured separately; III - SB and F were light cured together; IV - S3 and F were light cured separately; V - S3 and F were light cured simultaneously; VI - F was applied to saliva-contaminated, acid-etched enamel without an intermediate bonding agent layer. SBS was tested to failure in a universal testing machine at 0.5 mm/min. Data were analyzed by one-way ANOVA and Fisher's test (α=0.05).The debonded specimens were examined with a stereomicroscope to assess the failure modes. Three representative specimens from each group were observed under scanning electron microscopy for a qualitative analysis. Mean SBS in MPa were: I-12.28 (±4.29); II-8.57 (±3.19); III-7.97 (±2.16); IV-12.56 (±3.11); V-11.45 (±3.77); and VI-7.47 (±1.99). In conclusion, individual or simultaneous curing of the intermediate bonding agent layer and the resin sealant did not seem to affect bond strength to saliva-contaminated enamel. S3/F presented significantly higher SBS than the that of the groups treated with SB etch-and-rinse adhesive system and similar SBS to that of the control group, in which the sealant was applied under ideal dry, noncontaminated conditions.

scholarly journals Effect of Different Adhesion Protocols on the Shear Bond Strength of Universal Adhesive Systems to Sound and Artificial Caries-Affected Dentin

2021 ◽  
Author(s):  
Omnia M. Sami ◽  
Essam A. Naguib ◽  
Rasha H. Afifi ◽  
Shaymaa M. Nagi
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Resin Composite ◽  
Single Bond ◽  
Adhesive Systems ◽  
Universal Adhesive ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Self Etch

Abstract Objective Bonding to different dentin substrates influences resin composite restoration outcomes. This study investigated the influence of different adhesion protocols on the shear bond strength of universal adhesive systems to sound and artificial caries-affected dentin (CAD). Materials and Methods Occlusal enamel of 80 premolars were wet grinded to obtain flat midcoronal dentin. Specimens were equally divided according to the substrate condition: sound and CAD by subjecting to pH-cycling for 14 days. Each dentin substrate was bonded with the adhesive systems used in this study: Single Bond universal adhesive or Prime&Bond universal (applied either in etch-and-rinse or self-etch adhesion protocol). Adhesive systems were utilized according to manufacturers’ instructions, then resin composite was built up. Specimens were tested for shear bond strength. The data were analyzed by three-way analysis of variance, and failure modes were determined using stereomicroscope. Results There was no statistically significant difference between the two tested adhesive systems on artificially created CAD with different adhesion protocols. On sound dentin, Single Bond universal, either in the etch-and-rinse or self-etch adhesion protocols, revealed higher statistically significant shear bond strength mean values compared with CAD. Conclusion Single Bond universal adhesive in an etch-and-rinse adhesion protocol improved only bonding to sound dentin, while no added positive effect for the etching step with Prime&Bond universal adhesive was found when bonded to both sound and CAD substrates. The influence of CAD on the performance of the universal adhesives was material-dependent.

scholarly journals Influence of Enamel Exposure to Acidic Drink on Shear Bond Strength of Different Fissure Sealants

2022 ◽  
Vol 9 (1) ◽  
pp. 20
Author(s):  
Riccardo Beltrami ◽  
Marco Colombo ◽  
Andrea Cavada ◽  
Sofia Panizzi ◽  
Claudio Poggio ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Enamel Surface ◽  
Acid Etching ◽  
Control Group ◽  
Fissure Sealant ◽  
Etch And Rinse ◽  
The Impact ◽  
Sealant Group

In the present study, we evaluated the influence of bovine enamel exposure to acidic drinks (Coca-Cola, Coca-Cola Company, Milano, Italy, pH = 2.37) on shear bond strength of three sealants (Fissurit; Grandio Seal and Admira Fusion—Voco Gmbh, Cuxhaven, Germany). For each sealant, two adhesive techniques were tested to investigate the impact of the adhesive application on shear bond strength of sealants after immersion in acidic drink and in the control: Group 1—Control: enamel surface was not in contact with acid drinks, acid etching application and self-adhesive technique for fissure sealant; Group 2—enamel surface was not in contact with acid drinks, acid etching, and adhesive applications, an etch-and-rinse technique for fissure sealant; Group 3—enamel surface was immersed in acid drink, acid etching application and self-adhesive technique for fissure sealant; Group 4—enamel surface was immersed in acid drink, acid etching, and adhesive applications, an etch-and-rinse technique for fissure sealant. For each specimen, the sealant composite resin was applied to the enamel surface and tested with a universal testing machine. Shear bond strength was measured in MPa and with an optical microscope to determine failure modes, quantified with adhesive remnant index (ARI). Enamel acidification variably influenced bond strength values of the different sealants. When no enamel pretreatment was applied, no significant differences were found among the sealants (p > 0.05). However, the mere application of acid etching without adhesive procedures resulted in lower bond strength (p < 0.001). The acid pretreatment affected significantly the bond strength of all sealants tested (p < 0.001), but no significant differences were recorded between the subgroups.

scholarly journals Bond strength of one-step self-etch adhesives and their predecessors to ground versus unground enamel

2012 ◽  
Vol 06 (03) ◽  
pp. 280-286 ◽  
Author(s):  
A. Ruya Yazici ◽  
Zeren Yildirim ◽  
Atila Ertan ◽  
Gül Ozgunaltay ◽  
Berrin Dayangac ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
Third Molar ◽  
Bonding Performance ◽  
Etch And Rinse ◽  
One Step ◽  
Bonferroni Test ◽  
Bond Strengths ◽  
Self Etch

ABSTRACTObjectives: The aim of this study was to compare the shear bond strength of several self-etch adhesives to their two-step predecessors to ground and unground enamel.Methods: Seventy-five extracted, non-carious human third molar teeth were selected for this study. The buccal surfaces of each tooth were mechanically ground to obtain flat enamel surfaces (ground enamel), while the lingual surfaces were left intact (unground enamel). The teeth were randomly divided into five groups according to the adhesive systems (n=15): one-step self-etch adhesive - Clearfil S3 Bond, its two-step predecessor - Clearfil SE Bond, one-step self-etch adhesive - AdheSE One, and its two-step predecessor - AdheSE, and a two-step etch-and-rinse adhesive - Adper Single Bond 2(control). After application of the adhesives to the buccal and lingual enamel surfaces of each tooth, a cylindrical capsule filled with a hybrid composite resin (TPH) was seated against the surfaces. The specimens were stored in distilled water at 37°C for 24 hours, followed by thermocycling (5°C-55°C/500 cycles). They were subjected to shear bond strength test in a universal testing machine at a crosshead speed of 1.0 mm/minute. The data were compared using a two-way ANOVA, followed by Bonferroni test at P<.05Results: All adhesives exhibited statistically similar bond strengths to ground and unground enamel except for the etch-and-rinse adhesive that showed significantly higher bond strengths than the self-etch adhesives (P<.05). No significant differences in bond strength values were observed between ground and unground enamel for any of the adhesives tested (P=.17).Conclusions:Similar bond strengths to ground and unground enamel were achieved with one-step self-etch adhesives and their predecessors. Enamel preparation did not influence the bonding performance of the adhesives tested. (Eur J Dent 2012;6:280-286)

scholarly journals Shear bond strength and microleakage of a new self-etch adhesive pit and fissure sealant

2018 ◽  
Vol 37 (2) ◽  
pp. 266-271 ◽  
Author(s):  
Vinay PITCHIKA ◽  
Sebastian BIRLBAUER ◽  
Meng-Ling CHIANG ◽  
Christoph SCHULDT ◽  
Alexander CRISPIN ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Fissure Sealant ◽  
Pit And Fissure Sealant ◽  
Self Etch

scholarly journals Effect of Contamination by Cleaning Agents and Hemostatic Agent on Dentin Bond Strength

2021 ◽  
Vol 10 (36) ◽  
pp. 3115-3120
Author(s):  
Ezgi Sonkaya ◽  
Gonca Zeliha Bek Kürklü
Keyword(s):  
Bond Strength ◽  
Boric Acid ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Third Molar ◽  
Hemostatic Agent ◽  
Etch And Rinse ◽  
Group 5 ◽  
Self Etch ◽  
Group 1

BACKGROUND Contamination by hemostatic agent and rinsing with different disinfectant solutions can influence on micro shear bond strength between dentin and resin composite. The major objective of this study was to investigate the micro shear bond strengths of an etch and rinse technique and self-etch technique to human dentin contaminated with a hemostatic agent containing AlCl3 followed by chlorhexidine (CHX) and boric acid cleaning. METHODS A 50 non-carious, permanent, third molar teeth were randomly divided into five groups (N = 10 per group); Group 1: Self etch technique (OptiBond All - In - One, Kerr) was used on dentin contaminated with hemostatic agent (Alustat, Cerkamed). Group 2: Etch and rinse technique (Phosphoric acid then OptiBond Universal, Kerr) was used. Group 3: Contaminated dentin was cleaned with CHX for 60 seconds and then self-etch technique was used. Group 4: Contaminated dentin was cleaned with boric acid for 60 seconds and then self-etch technique was used. Group 5: Hemostatic agent was not applied, only self-etch technique was used. Flat occlusal dentin surfaces were prepared and then restored with resin composite rod (Herculite Classic, Kerr) (1 mm diameter × 1 mm height). After thermocycling (1,000 cycles), composite sticks were subjected to microshear until fracture occurred at a crosshead speed of 0.5 mm / min. Statistical analysis was made with one-way analysis of variance (ANOVA) and multiple comparison tests with Tukey. RESULTS The mean microshear bond strength values of group 1 to group 5 were 21.89 ± 12.43, 26.15 ± 22.79, 20.05 ± 12.03, 35.08 ± 13.20 and 19.41 ± 6.53 MPa, respectively. When the values of the groups were compared, the difference was not significant. (P = 0.108). CONCLUSIONS Boric acid and CHX may be used as alternatives to other materials that are used as cavity disinfectants on contaminated dentin by hemostatic agent. KEY WORDS Boric Acid, CHX, Hemostatic Agent, Adhesive Systems, Shear Bond Strength

scholarly journals Bonding agent underneath sealant: shear bond strength to oil-contaminated

2010 ◽  
Vol 21 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Maria Cristina Borsatto ◽  
Michelle Yamamoto Thomaz ◽  
Marta Maria Martins Giamatei Contente ◽  
Jaciara Miranda Gomes-Silva ◽  
Talitha de Siqueira Mellara ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
Adhesive System ◽  
Bonding Agent ◽  
Oil Contamination ◽  
Fissure Sealant ◽  
Pit And Fissure Sealant ◽  
Phosphoric Acid Etching

This study evaluated in vitro the shear bond strength of a resin-based pit-and-fissure sealant (Fluroshield - F) associated with either an ethanol-based (Adper Single Bond 2 - SB) or an acetone-based (Prime & Bond - PB) adhesive system under conditions of oil contamination. Mesial and distal enamel surfaces from 30 sound third molars were randomly assigned to 2 groups (n=30): I - no oil contamination; II - oil contamination. Contamination (0.25 mL during 10 s) was performed after 37% phosphoric acid etching with an air/oil spray. The specimens were randomly assigned to subgroups, according to the bonding protocol adopted: subgroup A - F was applied to enamel without an intermediate bonding agent layer; In subgroups B and C, SB and PB, respectively, were applied, light-cured, and then F was applied and light-cured. Shear bond strength was tested at a crosshead speed of 0.5 mm/min in a universal testing machine. Means (± SD) in MPa were: IA-11.28 (±1.84); IIA-12.02 (±1.15); IB-9.73 (±2.38); IIB-9.62 (±2.29); IC-28.30 (±1.63); and IIC-25.50 (±1.91). It may be concluded that the oil contamination affected negatively the sealant bonding to enamel and the acetone-based adhesive system (PB) layer applied underneath the sealant was able to prevent its deleterious effects to adhesion.

scholarly journals Effect of saliva contamination and re-etching time on the shear bond strength of a pit and fissure sealant

2004 ◽  
Vol 12 (3) ◽  
pp. 200-204 ◽  
Author(s):  
Gisele Maria Correr ◽  
Angela S. Caldo-Teixeira ◽  
Roberta Caroline Bruschi Alonso ◽  
Regina Maria Puppin-Rontani ◽  
Mário Alexandre Coelho Sinhoreti ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Etching Time ◽  
Control Group ◽  
Distilled Water ◽  
Third Molars ◽  
Fissure Sealant ◽  
Significant Difference ◽  
Pit And Fissure Sealant ◽  
Saliva Contamination

The aim of this study was to evaluate the effect of saliva contamination (SCT) and re-etching time (RET) on the shear bond strength (SBS) of the Fluroshield sealant. Forty-five extracted third molars were sectioned and flattened until reach an enamel surface area. Then, all samples were etched for 30 sec with 35% phosphoric acid and then they were distributed into 9 groups (n=10) according to SCT and RET (seconds), respectively: G1- control (no SCT and no RET); G2- 30s and 0s; G3- 60s and 0s; G4-30s and 2s; G5- 30s and 5s; G6- 30s and 15s; G7-60s and 2s; G8- 60s and 5s; G9- 60s and 15s. The sealant was applied according to the manufacturer's instructions. The samples were stored in distilled water at 37ºC for 72h and subjected to the SBS test. The results indicated that there was no statistically significant difference between the groups (p>0.05). However, it could be noticed that: 1- the longer the SCT, the lower the SBS values; 2 - the longer the RET, the higher the SBS values. It could be concluded that there was a tendency to the shortest SCT (30s) associated to the longest RET (5 and 15s) to reach similar SBS values for the control group.

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

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