Influence of moisture conditions on dentin bond strength of single-step self-etch adhesive systems

ABSTRACT Objective: To evaluate the hybridization quality and bond strength of adhesives to dentin. Materials and Methods: Ten human molars were ground to expose the dentin and then sectioned in four tooth-quarters. They were randomly divided into 5 groups according to the adhesive used: Two single-step self-etch adhesives - Adper Prompt (ADP) and Xeno III (XE), two two-step self-etching primer systems - Clearfil SE Bond (SE) and Adhe SE (ADSE), and one one-step etch-and-rinse system - Adper Single Bond (SB). Resin composite (Filtek Z250) crown buildups were made on the bonded surfaces and incrementally light-cured for 20 s. The restored tooth-quarters were stored in water at 37΀C for 24 h and then sectioned into beams (0.8 mm 2 in cross-section). Maximal microtensile bond strength (μ-TBS) was recorded (0.5 mm/min in crosshead speed). The results were submitted to one-way ANOVA and Tukey′s test (α = 0.05). Thirty additional teeth were used to investigate the hybridization quality by SEM using silver methenamine or ammoniacal silver nitrate dyes. Results: SE reached significantly higher μ-TBS (P < 0.05); no significance was found between ADSE and XE (P > 0.05), and between SB and ADP (P > 0.05); ADSE and XE were significantly higher than SB and ADP (P < 0.05). The bonding interface of SB showed the most intense silver uptake. SE and ADSE showed more favorable hybridization quality than that observed for ADP and XE. Conclusions: The bond strength and hybridization quality were affected by the interaction form of the adhesives with dentin. The hybridization quality was essential to improve the immediate μ-TBS to dentin.

Download Full-text

Bond Durability of Adhesives Containing Modified-monomer With/Without-fluoride After Aging in Artificial Saliva and Under Intrapulpal Pressure Simulation

Operative Dentistry ◽

10.2341/11-389-l ◽

2013 ◽

Vol 38 (1) ◽

pp. 48-56 ◽

Cited By ~ 14

Author(s):

HA El-Deeb ◽

HH Al Sherbiney ◽

EH Mobarak

Keyword(s):

Bond Strength ◽

Artificial Saliva ◽

Adhesive System ◽

Single Step ◽

The Other ◽

Adhesive Systems ◽

Etch And Rinse ◽

Significant Difference ◽

Self Etch ◽

Bond Durability

SUMMARY Objective: To evaluate the dentin bond strength durability of adhesives containing modified-monomer with/without-fluoride after storage in artificial saliva and under intrapulpal pressure simulation (IPPS). Materials and Methods: The occlusal enamel of 48 freshly extracted teeth was trimmed to expose midcoronal dentin. Roots were sectioned to expose the pulp chamber and to connect the specimens to the pulpal-pressure assembly. Specimens were assigned into four groups (n=12) according to adhesive system utilized: a two-step etch-and-rinse adhesive system (SB, Adper Single Bond 2, 3M ESPE), a two-step self-etch adhesive system (CSE, Clearfil SE Bond, Kuraray Medical Inc), and two single-step self-etch adhesives with the same modified monomer (bis-acrylamide)—one with fluoride (AOF, AdheSE One F, Ivoclar-Vivadent) and the other without (AO, AdheSE One, Ivoclar-Vivadent). Bonding was carried out while the specimens were subjected to 15-mm Hg IPPS. Resin composite (Valux Plus, 3M ESPE) buildups were made. After curing, specimens were aged in artificial saliva and under 20-mm Hg IPPS at 37°C in a specially constructed incubator either for 24 hours or six months prior to testing. Bonded specimens (n=6/group) were sectioned into sticks (n=24/group) with a cross section of 0.9 ± 0.01 mm2 and subjected to microtensile bond strength (μTBS) testing using a universal testing machine. Data were statistically analyzed using two-way analysis of variance (ANOVA) with repeated measures, one-way ANOVA tests, and a t-test (p<0.05). Failure modes were determined using a scanning electron microscope. Results: The μTBS values of SB and CSE fell significantly after six-month storage in artificial saliva and under IPPS, yet these values remained significantly higher than those for the other two adhesives with modified monomers. There was no significant difference in the bond strength values between fluoride-containing and fluoride-free self-etch adhesive systems (AOF and AO) after 24 hours or six months. Modes of failure were mainly adhesive and mixed. Conclusions: Based on the results of this study, 1) Fluoride addition did not affect dentin bond durability; and 2) despite the fact that the single-step adhesive system with modified monomer showed stability, bond strengths associated with these systems remained lower than those of multistep adhesive systems.

Download Full-text

Interfacial Nanoleakage and Bonding of Self-Adhesive Systems Cured with a Modified-Layering Technique to Dentin of Weakened Roots

Operative Dentistry ◽

10.2341/12-103-l ◽

2013 ◽

Vol 38 (5) ◽

pp. E154-E165 ◽

Cited By ~ 4

Author(s):

E Mobarak ◽

R Seyam

Keyword(s):

Bond Strength ◽

Repeated Measures ◽

Adhesive Systems ◽

Root Canals ◽

Root Region ◽

Modes Of Failure ◽

Group A ◽

Post Hoc ◽

Vertise Flow ◽

Self Etch

SUMMARY Objective The purpose of the study was to evaluate the nanoleakage and bond strength of different self adhesive systems cured with a modified-layering technique (MLT) to dentin of weakened roots. Methods Twenty-one maxillary incisors were decoronated and then root canals were instrumented and obturated with the cold lateral compaction technique. Weakened roots were simulated by flaring root canals until only 1 mm dentin thickness remained. Teeth were distributed into three groups. The canals were backfilled with Vertise Flow (VF group), a self-adhering system, following a modified-layering technique using two light-transmitting posts, sizes 6 and 3. DT Light Post size 2 was cemented using the same material. Remaining roots were prepared and cured in the same way as the VF group. However, in the TS/MF group, Clearfil Tri-S Bond (TS) adhesive and Clearfil Majesty Flow (MF) composite were used, while in the ED/PF group, ED primer II (ED)/Panavia F2.0 (PF) were used. After one week of storage, each root was sectioned to obtain six slices (two slices from each root third: coronal, middle and apical) of 0.9 ± 0.1 mm thickness. Interfacial nanoleakage expression was analyzed using a field emission scanning electron microscope (FEG-SEM), and the micro push-out bond strength (μPOBS) was measured at different root regions. Modes of failure were also determined using SEM. Data were statistically analyzed using two-way analysis of variance with repeated measures and Tukey post hoc test (p≤0.05). Results With MLT, all adhesive systems showed nanoleakage. For μPOBS, there was a statistically significant effect for adhesive systems (p<0.001) but not for root region (p<0.64) or for their interaction (p=0.99). Tukey post hoc test revealed that the bond strength of the VF group was significantly higher than the TS/MF and ED/PF groups for all root regions. Conclusion All of the tested self-adhesive systems cured using MLT had slight nanoleakage and were not sensitive to root regional differences. Self-adhering systems had higher bond strength than self-etch adhesives.

Download Full-text

Effect of Different Protocols in Preconditioning With EDTA in Sclerotic Dentin and Enamel Before Universal Adhesives Applied in Self-etch Mode

Operative Dentistry ◽

10.2341/16-014-l ◽

2017 ◽

Vol 42 (3) ◽

pp. 284-296 ◽

Cited By ~ 3

Author(s):

EC Martini ◽

SO Parreiras ◽

MF Gutierrez ◽

AD Loguercio ◽

A Reis

Keyword(s):

Bond Strength ◽

Adhesive Systems ◽

Microtensile Bond Strength ◽

Universal Adhesive ◽

Etching Pattern ◽

Bonding Performance ◽

Universal Adhesives ◽

Microshear Bond Strength ◽

Self Etch ◽

Main Factor

SUMMARY Objectives: The aim of this study was to investigate the effect of different protocols of 17% ethylene diamine tetra-acetic acid (EDTA) conditioning on the etching pattern and immediate bond strength of universal adhesives to enamel and sclerotic dentin. Methods and Materials: Forty bovine teeth with sclerotic dentin and 20 human third molars were randomly divided into eight groups resulting from the combination of the main factors surface treatment (none, two-minute EDTA conditioning manual application, 30-second EDTA manual application, 30-second EDTA sonic application) and adhesives systems (Scotchbond Universal Adhesive [SBU] and Prime & Bond Elect [PBE]). Resin-dentin and enamel-dentin bond specimens were prepared and tested under the microtensile bond strength (μTBS) and microshear bond strength (μSBS) tests, respectively. The etching pattern produced on the unground enamel and the sclerotic dentin surfaces under the different protocols and adhesive systems was evaluated under scanning electron microscopy. Results: For enamel, only the main factor adhesive was significant (p<0.0001), with SBU showing the highest μSBS. In sclerotic dentin, the lowest mean was observed for the group without EDTA application and the highest mean in the group with EDTA application with the sonic device for 30 seconds. Regardless of the EDTA protocol, the highest means of μTBS were observed for SBU (p<0.05). Conclusions: EDTA conditioning improves the bonding performance of universal adhesives in the self-etch mode on sclerotic dentin, mainly when applied for 30 seconds with the aid of a sonic device. EDTA pretreatment also improves the retentive etching pattern of enamel, but it does not result in higher enamel bond strength.

Download Full-text

Influence of light intensity on surface-free energy and dentin bond strength of single-step self-etch adhesives

Dental Materials Journal ◽

10.4012/dmj.2015-045 ◽

2015 ◽

Vol 34 (5) ◽

pp. 611-617 ◽

Cited By ~ 8

Author(s):

Kie NOJIRI ◽

Akimasa TSUJIMOTO ◽

Takayuki SUZUKI ◽

Syo SHIBASAKI ◽

Saki MATSUYOSHI ◽

...

Keyword(s):

Free Energy ◽

Light Intensity ◽

Bond Strength ◽

Surface Free Energy ◽

Single Step ◽

Self Etch

Download Full-text

Bond strength of etch-and-rinse and self-etch adhesive systems to enamel and dentin irradiated with a novel CO2 9.3 μm short-pulsed laser for dental restorative procedures

Lasers in Medical Science ◽

10.1007/s10103-017-2302-y ◽

2017 ◽

Vol 32 (9) ◽

pp. 1981-1993 ◽

Cited By ~ 4

Author(s):

Peter Rechmann ◽

N. Bartolome ◽

R. Kinsel ◽

R. Vaderhobli ◽

B. M. T. Rechmann

Keyword(s):

Bond Strength ◽

Pulsed Laser ◽

Adhesive Systems ◽

Etch And Rinse ◽

Dental Restorative ◽

Self Etch

Download Full-text

Effect of Tannic Acid on Bond Strength of Etch and Rinse and Self-etch Adhesive Systems in Dentin of Primary Teeth

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1984 ◽

2017 ◽

Vol 18 (1) ◽

pp. 34-38

Author(s):

Mojtaba Abdollahi ◽

Masoumeh Ebrahimi ◽

Alireza Sarraf Shirazi ◽

Faraneh Abdolhoseinpour

Keyword(s):

Bond Strength ◽

Tannic Acid ◽

Primary Teeth ◽

Testing Machine ◽

T Test ◽

Adhesive Systems ◽

Primary Molar ◽

Etch And Rinse ◽

Self Etch

ABSTRACT Introduction One of the possible mechanisms for the gradual destruction of bond strength in dentin-resin interface, could be due to the demineralized unstable collagen matrix. Use of protease inhibitors, such as tannic acid (TA) could prevent destruction of collagen fibers. The aim of this study was to compare the TA effect on bond strength of etch and rinse and self-etch adhesive systems in the dentin of primary teeth. Materials and methods This in vitro study was done on 40 extracted primary molar teeth. The teeth were sectioned in the mesiodistal direction, and enamel of buccal and lingual surfaces was removed. Samples were randomly divided into four groups: Single bond (SB) + TA, SB, Clearfil SE Bond (CSB) + TA, and CSB. Then, Z250 and Clearfil AP-X composites were cured on the surfaces of SB and CSB groups respectively. After that, all samples were divided into aging and non-aging groups. For 3 months, samples were placed under 1,000 thermal cycles in aging group. Subsequently, the shear bond strengths of all groups were measured by the International testing machine, and failure mode was evaluated by an optical stereomicroscope. Data were analyzed with paired t-test and independent t-test. Results Tannic acid induced a significant reduction in the immediate bond strength of adhesive SB. Meanwhile, TA had no significant effect on shear bond strength of the CSB system. Conclusion Based on our findings, use of TA is not recommended with SB and CSB adhesives on primary teeth. Clinical significance Tannic acid may not be considered in resin restorations of primary teeth. How to cite this article Ebrahimi M, Sarraf Shirazi A, Abdolhoseinpour F, Abdollahi M. Effect of Tannic Acid on Bond Strength of Etch and Rinse and Self-etch Adhesive Systems in Dentin of Primary Teeth. J Contemp Dent Pract 2017;18(1):34-38.

Download Full-text

Bond strength to dentin of total-etch and self-etch adhesive systems

RGO - Revista Gaúcha de Odontologia ◽

10.1590/1981-8637201400040000022648 ◽

2014 ◽

Vol 62 (4) ◽

pp. 365-370 ◽

Cited By ~ 1

Author(s):

Ricardo Alves dos SANTOS ◽

Eliane Alves de LIMA ◽

Mônica Maria de Albuquerque PONTES ◽

Alexandre Batista Lopes do NASCIMENTO ◽

Marcos Antônio Japiassú Resende MONTES ◽

...

Keyword(s):

Bond Strength ◽

Testing Machine ◽

Adhesive System ◽

Single Bond ◽

Adhesive Systems ◽

Healthy Human ◽

Universal Testing ◽

Stereo Microscope ◽

Diamond Disc ◽

Self Etch

OBJECTIVE: To assess the bond strength to dentin of the Single Bond (3M ESPE) and XP Bond (Dentsply) total-etch and Adper SE Plus (3M ESPE) self-etch adhesive systems. METHODS: Fifteen healthy human third molars were randomly allocated across three different groups of five teeth each according to the adhesive system. The occlusal portion of each tooth was removed under refrigeration using a flexible diamond disc (EXTEC, Enfield, CT, USA) down to an area of dentin that did not reveal enamel, as confirmed under a 40X stereo microscope (Ramsor, São Paulo, Brazil). A standardized smear layer was created with #600 grit silicon-carbide paper. The adhesive systems were applied as per manufacturer recommendations, with the exception of the Adper SE Plus system, which was triple-polymerized. Composite resin blocks (5 mm) were placed on the dentin surface. The specimens were stored in distilled water for 24 hours at 37ºC. Using a flexible diamond disc (EXTEC, Enfield, CT, USA), toothpick-like specimens with an adhesive area of less than 1 mm² were obtained. A microtensile bond test was then carried out using a universal testing machine (KRATOS) with a crosshead speed of 0.5 mm/min. Analysis of variance (ANOVA) and Tukey's test were used for comparisons. RESULTS: The bond strength values obtained with each adhesive system were as follows: XP Bond, 96.24 MPa; Adper Single Bond, 72.39 MPa; Adper SE Plus, 49.91 MPa. CONCLUSION: In terms of bond strength to dentin, conventional adhesives outperform self-etching systems.

Download Full-text

Effect of Chitosan as a Cross-Linker on Matrix Metalloproteinase Activity and Bond Stability with Different Adhesive Systems

Marine Drugs ◽

10.3390/md18050263 ◽

2020 ◽

Vol 18 (5) ◽

pp. 263 ◽

Cited By ~ 1

Author(s):

Eugenia Baena ◽

Sandra R Cunha ◽

Tatjana Maravić ◽

Allegra Comba ◽

Federica Paganelli ◽

...

Keyword(s):

Matrix Metalloproteinase ◽

Bond Strength ◽

Adhesive Systems ◽

Microtensile Bond Strength ◽

Bond Stability ◽

Etch And Rinse ◽

Mechanical Durability ◽

Human Dentine ◽

Self Etch ◽

Metalloproteinase Activity

The aim of the present study was to evaluate the effect of 0.1% chitosan (Ch) solution as an additional primer on the mechanical durability and enzymatic activity on dentine using an etch-and-rinse (E&R) adhesive and a universal self-etch (SE) adhesive. Microtensile bond strength and interfacial nanoleakage expression of the bonded interfaces for all adhesives (with or without pretreatment with 0.1% Ch solution for 1 min and air-dried for 5 s) were analyzed immediately and after 10,000 thermocycles. Zymograms of protein extracts from human dentine powder incubated with Optibond FL and Scotchbond Universal on untreated or Ch-treated dentine were obtained to examine dentine matrix metalloproteinase (MMP) activities. The use of 0.1% Ch solution as an additional primer in conjunction with the E&R or SE adhesive did not appear to have influenced the immediate bond strength (T0) or bond strength after thermocycling (T1). Zymography showed a reduction in MMP activities only for mineralized and demineralized dentine powder after the application of Ch. Application of 0.1% Ch solution does not increase the longevity of resin–dentine bonds. Nonetheless, the procedure appears to be proficient in reducing dentine MMP activities within groups without adhesive treatments. Further studies are required to comprehend the cross-linking of Ch with dentine collagen.

Download Full-text