scholarly journals Microtensile Bond Strength and Failure Type Analysis of Self-Etch Adhesive Systems on Superficial and Deep Dentin After Long-term Water Storage

2020 ◽  
Vol 23 (4) ◽  
pp. 12p
Author(s):  
Pinar Cevik ◽  
Arzu Zeynep Yildirim ◽  
Zafer Artvin ◽  
Mutlu Özcan
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Bond Strength ◽  
Resin Composite ◽  
Adhesive System ◽  
Optical Microscope ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
Dentin Thickness ◽  
Scanning Electron

Objective: The aim of this study was to evaluate and compare the microtensile bond strengths of four current adhesive materials that contain different monomers at deep and superficial dentin. Material and Methods: Forty non-carious human third molars (n = 5) were used in the study. Specimens were divided into two main groups according to dentin thickness as superficial and deep dentin. Groups were further divided into four subgroups in terms of the adhesive systems used: Nova Compo B Plus (NCBP), Nova Compo B (NCB), Futurabond M (FB) and Clearfil S3 Bond Plus (CS3). All specimens were bonded to resin composite and stored in 37 °C water for 9-months. Teeth were sectioned into 3 x 3 mm x 1mm thick beams. Microtensile bond strength test was carried out by using a universal testing device (1 mm/min). After fracture, failure types were observed using an optical microscope and the fractured dentin surfaces were observed by a scanning electron microscopy (SEM). One-way ANOVA and Tukey tests were used to compare the adhesive system in each dentin group. An unpaired T-test was used to compare the dentin thickness in each adhesive material. Results: As compared to deep dentin, superficial dentin showed higher µTBS values in groups NCBP, FB and CS, as opposed to group NCB. Only NCB revealed higher bond strength at deep dentin layers when compared to superficial dentin. In the superficial dentin group, NCBP showed the highest bond strength value, while NCB showed the lowest bond strength. In the deep dentin group, while NCB showed the highest bond strength value, NCBP revealed the lowest bond strength value after 9-months storage. While 4-META and 10-MDP monomer combination (NCBP) resulted in the highest bond strength value among the adhesive systems in the superficial dentin group, the monomer combination (NCB) resulted in the highest bond strength in deep dentin group. Conclusions: Microtensile bond strength performance are affected by both the type of monomer in the adhesive combination and the depth of the dentin. KEYWORDS Adhesive system; dentin thickness; hydrophobic monomer; microtensile bond strength; scanning electron microscopy.

Bonding performance of different adhesive systems to deproteinized dentin: Microtensile bond strength and scanning electron microscopy

2005 ◽  
Vol 75B (1) ◽  
pp. 158-167 ◽  
Author(s):  
Fábio Barbosa de Souza ◽  
Cláudio Heliomar Vicente Silva ◽  
Regina Guenka Palma Dibb ◽  
Carina Sincler Delfino ◽  
Lúcia Carneiro de Souza Beatrice
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Bond Strength ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
Bonding Performance ◽  
Scanning Electron

Differential Resin-Dentin Bonds Created after Caries Removal with Polymer Burs

2012 ◽  
Vol 18 (3) ◽  
pp. 497-508 ◽  
Author(s):  
Manuel Toledano ◽  
Inmaculada Cabello ◽  
Monica Yamauti ◽  
Raquel Osorio
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Bond Strength ◽  
Measured Data ◽  
Glass Ionomer ◽  
Single Bond ◽  
Microtensile Bond Strength ◽  
Caries Removal ◽  
Thick Smear ◽  
Scanning Electron

AbstractThe objective of this article was to investigate the effect of carbide and polymer burs caries removal methods on the bond strength of different adhesives to dentin. Resin restorations were performed in sound and caries-affected dentin, after using polymer or carbide burs and bonding with four different adhesive (Single bond, SB; Clearfil SE bond, SEB; FL-Bond II, FLB; and Fuji II-LC, FUJI). Microtensile bond strength (MTBS) was measured. Data were analyzed with ANOVA and Student-Newman-Keuls tests. Debonded surfaces were observed by scanning electron microscopy. Bonded interfaces were examined using light microscopy (Masson's trichrome staining). In sound dentin, MTBS was similar for SEB and SB, and higher than that of FLB and FUJI. Bond strength to carbide bur prepared dentin was similar for SB, SEB, and FLB; FUJI presented the lowest. SB applied on polymer bur excavated dentin presented similar values to those of the carbide bur group; MTBS attained by SEB, FLB, and FUJI decreased when bonding to dentin treated with polymer burs; FUJI yielded pretesting failures in all specimens. Polymer burs created a thick smear layer that was not infiltrated by tested self-etching agents. The bonding effectiveness of self-etching and glass-ionomer-like adhesives to dentin decreased when polymer burs were used.

scholarly journals Reparability of Aged Silorane With Methacrylate-Based Resin Composite: Micro-Shear Bond Strength and Scanning Electron Microscopy Evaluation

2012 ◽  
Vol 37 (1) ◽  
pp. 28-36 ◽  
Author(s):  
L Giachetti ◽  
D Scaminaci Russo ◽  
M Baldini ◽  
C Goracci ◽  
M Ferrari
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Bond Strength ◽  
Intermediate Layer ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Composite Restorations ◽  
Scanning Electron Microscopy Evaluation ◽  
Scanning Electron

Clinical Relevance Aged silorane composite restorations can be repaired with a methacrylate-based resin composite by using a phosphate-methacrylate–based adhesive as the intermediate layer.

scholarly journals Antibacterial and Bonding Properties of Universal Adhesive Dental Polymers Doped with Pyrogallol

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1538
Author(s):  
Naji Kharouf ◽  
Ammar Eid ◽  
Louis Hardan ◽  
Rim Bourgi ◽  
Youri Arntz ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Antibacterial Activity ◽  
Bond Strength ◽  
The Other ◽  
Adhesive Systems ◽  
Universal Adhesive ◽  
Bonding Properties ◽  
Morphological Differences ◽  
Scanning Electron

This study investigated the antibacterial activity, bond strength to dentin (SBS), and ultra-morphology of the polymer–dentin interface of experimental adhesive systems doped with pyrogallol (PY), which is a ubiquitous phenolic moiety that is present in flavonoids and polyphenols. A universal adhesive containing 4-META and 10-MDP was used in this study. PY behaves as an antioxidant and anti-cancerogenic agent and it was incorporated into the adhesive at different concentrations (0.5 and 1 wt.%). The antibacterial activity and SBS were analyzed and the results were statistically analyzed. The ultra-morphology of the polymer–dentin interface was assessed using scanning electron microscopy (SEM). At 24 h, a lower antibacterial activity was observed for the control adhesive compared to those with 0.5% and 1% PY. No difference was seen in SBS between the three groups at 24 h. After 6 months, the SBS of the 0.5% PY adhesive was significantly lower than the other tested adhesives. The specimens created with 1% PY adhesive presented a higher bond strength at six months compared with that found at 24 h. No morphological differences were found at the polymer–dentin interfaces of the tested adhesives. Pyrogallol may be incorporated into modern universal adhesive systems to preserve the polymer–dentin bonding interface and confer a certain degree of antibacterial activity.

scholarly journals Resistance to Dislodgement of REBILDA® Post System to Intraradicular Dentin

2017 ◽  
Vol 19 (2) ◽  
pp. 47
Author(s):  
Daphne Ross DDS ◽  
Carlos E. Filloy Esna DDS ◽  
Juan Carlos Ramírez-Barrantes DDS, MSD, PhD
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Bond Strength ◽  
Adhesive Systems ◽  
Root Reinforcement ◽  
Significant Difference ◽  
Group 2 ◽  
Push Out ◽  
Scanning Electron ◽  
Group 1

Currently there is controversy in the literature about clinical and adhesive effectiveness with respect to adhesive systems aimed to  root reinforcement. Thus, the objective of this study was to evaluate the Push-Out bond strength between the Rebilda® post system and the intraradicular dentine. Thus, 28 unirradicular teeth were used, cut and standardized in 16 mm. The root segments were submitted to endodontic treatment; and then randomly divided into two groups, Group 1 (n = 14): Rebilda® DC + Futurabond DC; Group 2 (n = 14): RelyX ARC + Adper Scothbond Multipurpose Plus. Ten specimens from each group were submitted  to the Push-Out Test. The remaining 4 specimens from each group were prepared for Scanning Electron Microscopy (SEM) in order to evaluate the formation of resinous extensions at the post-cement-dentin interface. Group 2 showed better results when compared to Group 1 regarding bond strength and in formation of resinous extensions or tags, but there was no statistically significant difference (p>0.05). It was concluded that the REBILDA® Post System promotes adequate bond strength to intraradicular dentin.

SEM Analysis of the Interface of Five Adhesive Systems

2017 ◽  
Vol 752 ◽  
pp. 18-23
Author(s):  
Diana Sucala ◽  
Codruța Sarosi ◽  
Stanca Cuc ◽  
Marioara Moldovan ◽  
Catalin Popa
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
High Performance ◽  
Resin Composite ◽  
Sem Analysis ◽  
Adhesive Systems ◽  
Hybrid Layer ◽  
Human Teeth ◽  
Commercial Resin ◽  
Scanning Electron

The aim of this study was to investigate the interface ultrastructure at dentin and hybrid layer formed by novel adhesives with TiO2 nano-fillers. Nano-fillers have shown outstanding mechanical properties and they are widely used as reinforcing materials associated with polymeric matrices for high performance applications. Twenty extracted non carious human teeth were utilized for evaluation of the bonded interface using scanning electron microscopy. The experiments used four novel adhesives (noted A1, A2, A3, A4). Phosphoric acid (5s, 37%) and a commercial resin composite Herculite XRV (Kerr) filling were used for the surface treatment. The interface was studies using scanning electron microscopy (SEM) using a microscope Inspect F-FEI Company. The experimental results indicated the main benefits and disadvantages of the investigated adhesives systems. SEM of the adhesive dentin interface revealed a HAp (hydroxyapatite) – rich and homogenous hybrid layer. This layer produced a favourable sealing of damaged dentin.

scholarly journals Comparison of two adhesive systems of various polyetheretherketone (PEEK) composites on the shear bond strength

2021 ◽  
Vol 11 (2) ◽  
pp. 54-61
Author(s):  
Fatih Demirci ◽  
Samet Tekin
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Bond Strength ◽  
Surface Properties ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Testing Machine ◽  
Fiber Reinforced ◽  
Adhesive Systems ◽  
Scanning Electron

Aim: In this in vitro study, the effect of two adhesive systems applied to surfaces of different polyether-ether-ketone (PEEK) composites on the shear bond strength (SBS) of a composite resin was compared. Methodology: Eighty PEEK specimens were divided into four groups (n=20): Unfilled PEEK (UF), carbon-fiber-reinforced PEEK (CFR), glass-fiber-reinforced PEEK (GFR), and ceramic-reinforced PEEK (CR). Each group was further divided into two subgroups (n=10): Visio.link (VL) and Single Bond Universal (SB). The specimens with 8-mm diameter and 5-mm thickness were prepared. SBS was examined using a universal testing machine. Results were statistically analyzed by multivariate analysis of variance and Tukey’s post-hoc test. Failure modes were analyzed using a stereomicroscope at 20× magnification. Surface properties were examined by scanning electron microscopy. The surface properties of the specimens were examined by scanning electron microscopy (SEM).  Results: Effect of different PEEK and adhesive systems on SBS was found to be statistically significant (p<0.05). SBS values for CFR-VL and UF-VL groups were statistically more significant than those for CFR-SB and UF-SB groups (p=0.001). SBS values for the GFR-VL group were statistically more significant than that for the UF-VL group (p=0.001). SBS values for the CF-SB group were statistically more significant than those for CFR-SB and CFR-SB groups (p=0.001). Failure modes were examined using a stereomicroscope at 20× magnification, and adhesive and mixed failure modes were observed. Conclusion: PEEK composites with different contents and properties can be used in fixed prosthetic restorations. However, additional experimental and clinical studies are required to investigate different PEEK frameworks and composite veneers.   How to cite this article: Demirci F, Tekin S. Comparison of two adhesive systems of various polyetheretherketone (PEEK) composites on the shear bond strength. Int Dent Res 2021;11(2):54-61. https://doi.org/10.5577/intdentres.2021.vol11.no2.1   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Study of new rubber to steel adhesive systems based on Co(II) and Cu(II) sulphides coats

2018 ◽  
Vol 157 ◽  
pp. 07004
Author(s):  
Ivan Labaj ◽  
Darina Ondrušová ◽  
Andrej Dubec ◽  
Mariana Pajtášová ◽  
Marcel Kohutiar ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Double Layer ◽  
Steel Surface ◽  
Adhesive System ◽  
Adhesive Systems ◽  
Curing Conditions ◽  
Rubber Blends ◽  
Scanning Electron

The presented paper deals with the preparation of new rubber to steel adhesive systems using the steel surface treatment with deposition of adhesive coats based on Co(II) and Cu(II) sulphides. Efficiency of new prepared adhesive systems containing Co(II) and Cu(II) sulphides has been compared with the efficiency of double layer adhesive system commonly used in industry. The chemical composition of prepared adhesive systems was determined using the EDX analysis. Scanning Electron Microscopy (SEM) was used for study of topography and microstructure of prepared rubber to steel adhesive systems (Co(II), Cu(II) sulphide, double layer adhesive system). For determination of adhesion strength between rubber blends and metal pieces with various adhesive systems deposited on these pieces, the test according to ASTM D429 standard relating to Rubber to metal adhesion, method A was used. For all test samples, the same type of rubber blend and the same curing conditions have been used.

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