scholarly journals Co-Blend Application Mode of Bulk Fill Composite Resin

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2504
Author(s):  
Mohammad Al-Nabulsi ◽  
Alaa Daud ◽  
Cynthia Yiu ◽  
Hanan Omar ◽  
Salvatore Sauro ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Degree Of Conversion ◽  
Adhesive Systems ◽  
Bonding Agents ◽  
Force Microscopy ◽  
Flowable Composite ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Nanoindentation Hardness

Objective: To evaluate the effect of a new application method of bulk-fill flowable composite resin material on bond-strength, nanoleakage, and mechanical properties of dentine bonding agents. Materials and methods: Sound extracted human molars were randomly divided into: manufacturer’s instructions (MI), manual blend 2 mm (MB2), and manual blend 4 mm (MB4). Occlusal enamel was removed and flattened, dentin surfaces were bonded by Prime & Bond universal (Dentsply and Optibond FL, Kerr). For the MI group, adhesives were applied following the manufacturer’s instructions then light-cured. For MB groups, SDR flow+ bulk-fill flowable composite resin was applied in 2- or 4-mm increment then manually rubbed by a micro brush for 15 s with uncured dentine bonding agents and the mixture was light-cured. Composite buildup was fabricated incrementally using Ceram.X One, Dentsply nanohybrid composite resin restorative material. After 24-h water storage, the teeth were sectioned to obtain beams of about 0.8 mm2 for 24-h and thermocycled micro-tensile bond strength at 0.5 mm/min crosshead speed. Degree of conversion was evaluated with micro-Raman spectroscopy. Contraction gaps at 24 h after polymerization were evaluated and atomic force microscopy (AFM) nano-indentation processes were undertaken for measuring the hardness across the interface. Depth of resin penetration was studied using a scanning electron microscope (SEM). Bond strength data was expressed using two-way ANOVA followed by Tukey’s test. Nanoindentation hardness was separately analyzed using one-way ANOVA. Results: Factors “storage F = 6.3” and “application F = 30.11” significantly affected the bond strength to dentine. For Optibond FL, no significant difference in nanoleakage was found in MI/MB4 groups between baseline and aged specimens; significant difference in nanoleakage score was observed in MB2 groups. Confocal microscopy analysis showed MB2 Optibond FL and Prime & Bond universal specimens diffusing within the dentine. Contraction gap was significantly reduced in MB2 specimens in both adhesive systems. Degree of conversion (DC) of the MB2 specimens were numerically more compared to MS1 in both adhesive systems. Conclusion: Present study suggests that the new co-blend technique might have a positive effect on bond strengths of etch-and-rinse adhesives to dentine.

scholarly journals Bond strength of a composite resin to glass ionomer cements using different adhesive systems

2017 ◽  
Vol 46 (4) ◽  
pp. 214-219
Author(s):  
Ana Carolina de Oliveira BECCI ◽  
Mônica de Souza BENETTI ◽  
Natália Bertolo DOMINGUES ◽  
Elisa Maria Aparecida GIRO
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Glass Ionomer Cement ◽  
Adhesive System ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Single Bond ◽  
Adhesive Systems ◽  
Etch And Rinse ◽  
Significant Difference

Abstract Introduction Glass ionomer cements are often used as a base or cavity lining prior to restorative material. Objective To evaluate the bond strength of a composite resin to different glass ionomer cements, when using a two-step conventional and self-etching adhesive systems. Material and method Three glass ionomer cements (Ketac Molar Easymix, Vitremer and Vitrebond), the composite resin Filtek Z350 XT and the adhesive systems Adper Single Bond 2, Clearfil SE Bond and Adper Easy One were used. As negative control, resin was bonded to cement without using an adhesive system. Holes (4 mm diameter, 2 mm deep) prepared in acrilic bloks were filled with the glass ionomer cements (n=12/group). On the surface, an area of 1mm in diameter was delimited, the adhesive system was applied, and a specimen of composite resin with 1 mm height was made. After 24 hours storage (37 °C and 100% humidity), the microshear test was performed. Data were analyzed using two-way ANOVA and Tukey test for comparison between groups (α=0.05). Result The adhesive systems significantly improved the bond strenght of composite resin to glass ionomer cements (p≤0.001). There was no significant difference in bond strength when self-etching adhesive systems were compared with the simplified etch-and-rinse adhesive, except for Vitrebond where Clearfil SE Bond determined higher bond strength when compared to Adper Single Bond 2 (p=0.003). Conclusion Self-etching adhesive systems are a good option for establishing the bond between the composite resin and the glass ionomer cement.

The Effect of Different Adhesive Systems on the Retention Strength of Bonded Amalgam Restorations

2008 ◽  
Vol 9 (2) ◽  
pp. 97-104
Author(s):  
Horieh Moosavi ◽  
Marjaneh Ghavamnasiri
Keyword(s):  
Bond Strength ◽  
Cylindrical Cavity ◽  
Microscopic Analysis ◽  
Control Group ◽  
Adhesive Systems ◽  
Bonding Agents ◽  
Significant Difference ◽  
Molar Teeth ◽  
Amalgam Restorations ◽  
Retention Strength

Abstract Aim The aim of this study was to evaluate the bond strength of bonded amalgam to dentin when unfilled and filled adhesive systems are employed using different application modes and to compare the adhesives with a cavity varnish and unlined restorations. Methods and Materials One hundred twenty sound third human molar teeth were used in the study. A cylindrical cavity 3.3 mm in diameter was prepared in a cross section of dentin approximately 3.0 mm in thickness. The specimens were divided into six experimental groups (n=20) according to the cavity liner used in the prepared cylindrical cavity: One Coat Bond™ (O), Scotchbond Multi-Purpose™(S), Panavia 21™ (Pa), PQ1™ (P), Copalite™ (C), and the unlined (U) group which served as the control group. Cavity surfaces were treated with the assigned adhesive/liner according to manufacturer's instructions then restored with amalgam. After storage in saline solution for seven days at 370C, the specimens were subjected to a push-out test at a crosshead speed of 1 mm/min. The mode of failure was assessed by microscopic analysis of the fracture sites. Data were analyzed by analysis of variance (ANOVA) and Duncan Multiple range tests (α=0.05). Results No significant difference in amalgam-dentin bond strength was found among O (23.47 MPa), S (21.02 MPa), and Pa (20.06 MPa) adhesive groups, but there was a significant difference between each of these groups and the P and C groups. The U group exhibited significantly lower retention than the other groups (P<0.05). Conclusion Different bond strengths were observed with the different types of dentin bonding agents and liners employed. The lowest bond strength was seen in the U group. Clinical Significance A statistically significant difference in bond strength was observed with O, S, and Pa compared to P, but this finding is not sufficient to rely on the bonding of amalgam to dentin, particularly in complex amalgam restorations. Citation Ghavamnasiri M, Moosavi H. The Effect of Different Adhesive Systems on the Retention Strength of Bonded Amalgam Restorations. J Contemp Dent Pract 2008 February;(9)2:097-104.

Effect of Ethanol Wet Bonding Technique on the Durability of Resin- Dentin Bond with Contemporary Adhesive Systems

2015 ◽  
Vol 39 (2) ◽  
pp. 133-142 ◽  
Author(s):  
R Nagpal ◽  
N Manuja ◽  
IK Pandit
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Sem Analysis ◽  
Adhesive Systems ◽  
Etch And Rinse ◽  
Two Samples ◽  
Significant Difference ◽  
Permanent Molars ◽  
Bonding Technique

Objective: To evaluate the effect of ethanol wet bonding technique on the immediate and long term bond strength of simplified etch and rinse adhesive systems to dentin. Study Design: 96 extracted human permanent molars were ground to expose the flat dentin surface. The teeth were divided into four groups (n=24) according to the adhesives used, either Tetric N Bond or Solobond M and bonding techniques i.e. water wet bonding or ethanol wet bonding (EWB). Composite cylinder was bonded to each specimen using the respective adhesive technique. Ten samples from each group were then tested immediately for shear bond strength evaluation and two samples for SEM analysis. The remaining samples (12) were tested after 6 month storage in distilled water. Results: Upon immediate testing, there was no significant difference in the mean shear bond strength of the groups regardless of the bonding technique or adhesive used. The bond strength fell dramatically in the water wet bonded specimens after 6 months water storage, while the bond strength of both the adhesives was maintained when EWB technique was used. SEM observation revealed good interfacial adaptation in EWB groups even after six months. Conclusion: For both simplified etch and rinse adhesives used, ethanol wet bonding technique led to significant preservation of the resin dentin bond over 6 months.

scholarly journals Microshear Bond Strength of Different Adhesive Systems to Dentin

2019 ◽  
Author(s):  
Sara Valizadeh ◽  
Aida Moradi ◽  
Mansooreh Mirazei ◽  
Hooman Amiri ◽  
Mohammad Javad Kharazifard
Keyword(s):  
Bond Strength ◽  
Testing Machine ◽  
Single Bond ◽  
Adhesive Systems ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Microshear Bond Strength ◽  
Self Etch ◽  
Composite Cylinders

Objectives: The aim of this study was to compare the microshear bond strength (µSBS) of various adhesive systems to dentin. Materials and Methods: In this in vitro experimental study, 60 sound human third molars were divided into four groups. Dentin discs were prepared of middle-third dentin measuring 4 mm in diameter and 2 mm in thickness. Dentin surfaces were bonded with one of the four types of adhesives: (A) Single Bond (3M ESPE), Scotchbond Universal (3M ESPE) in etch and rinse (B) and self-etch (C) modes and (D) Clearfil SE Bond (Kuraray Noritake Dental). After the application of adhesive systems according to the manufacturers’ instructions, composite cylinders (Vit-l-escence) were bonded to dentin surfaces. The μSBS test was performed using a universal testing machine at a crosshead speed of 1 mm/min. Data were analyzed with one-way ANOVA and Tukey’s test (α=0.05). Results: The µSBS was the highest in self-etch Scotchbond Universal (15.8±6.08 MPa) followed by Clearfil SE Bond (15.24±4.6 MPa), etch and rinse Scotchbond Universal (11.68±4.07MPa) and Single Bond (11.24±3.74 MPa). A significant difference was only found between Single Bond and etch and rinse Scotchbond Universal groups (P=0.04). Conclusion: Based on the results of this study, application of Scotchbond Universal in self-etch mode provides a reliable bond to dentin.

scholarly journals Microshear Bond Strength of Different Adhesive Systems to Dentin

2019 ◽  
Author(s):  
Sara Valizadeh ◽  
Aida Moradi ◽  
Mansooreh Mirazei ◽  
Hooman Amiri ◽  
Mohammad Javad Kharazifard
Keyword(s):  
Bond Strength ◽  
Testing Machine ◽  
Single Bond ◽  
Adhesive Systems ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Microshear Bond Strength ◽  
Self Etch ◽  
Composite Cylinders

Objectives: The aim of this study was to compare the microshear bond strength (µSBS) of various adhesive systems to dentin. Materials and Methods: In this in vitro experimental study, 60 sound human third molars were divided into four groups. Dentin discs were prepared of middle-third dentin measuring 4 mm in diameter and 2 mm in thickness. Dentin surfaces were bonded with one of the four types of adhesives: (A) Single Bond (3M ESPE), Scotchbond Universal (3M ESPE) in etch and rinse (B) and self-etch (C) modes and (D) Clearfil SE Bond (Kuraray Noritake Dental). After the application of adhesive systems according to the manufacturers’ instructions, composite cylinders (Vit-l-escence) were bonded to dentin surfaces. The μSBS test was performed using a universal testing machine at a crosshead speed of 1 mm/min. Data were analyzed with one-way ANOVA and Tukey’s test (α=0.05). Results: The µSBS was the highest in self-etch Scotchbond Universal (15.8±6.08 MPa) followed by Clearfil SE Bond (15.24±4.6 MPa), etch and rinse Scotchbond Universal (11.68±4.07MPa) and Single Bond (11.24±3.74 MPa). A significant difference was only found between Single Bond and etch and rinse Scotchbond Universal groups (P=0.04). Conclusion: Based on the results of this study, application of Scotchbond Universal in self-etch mode provides a reliable bond to dentin.

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 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.

CPP–ACP pretreatment effect on microshear bond strength of simplified etch-and-rinse adhesive systems plus a flowable composite to enamel

2014 ◽  
Vol 29 (2) ◽  
pp. 109-115
Author(s):  
Diana Ferreira Gadelha de Araújo ◽  
Boniek Castillo Dutra Borges ◽  
Ariza Magalhães Mendes ◽  
Eduardo José Souza-Junior ◽  
Isauremi Vieira de Assunção ◽  
...  
Keyword(s):  
Bond Strength ◽  
Adhesive Systems ◽  
Flowable Composite ◽  
Pretreatment Effect ◽  
Etch And Rinse ◽  
Microshear Bond Strength

A Comprehensive Laboratory Screening of Three-Step Etch-and-Rinse Adhesives

2014 ◽  
Vol 39 (6) ◽  
pp. 652-662 ◽  
Author(s):  
AD Loguercio ◽  
I Luque-Martinez ◽  
MA Muñoz ◽  
AL Szesz ◽  
J Cuadros-Sánchez ◽  
...  
Keyword(s):  
Composite Resin ◽  
Adhesive System ◽  
Degree Of Conversion ◽  
Adhesive Systems ◽  
Short Term ◽  
Hybrid Layer ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Etch And Rinse ◽  
Bond Strengths

SUMMARY Objectives This study evaluated several bonding (microtensile bond strengths [μTBS], nanoleakage [NL], and in situ degree of conversion [ISDC] on dentin) and mechanical properties (ultimate tensile strength [UTS], degree of conversion [DC], water sorption [WS], and solubility [SL] in water) of four three-step etch-and-rinse adhesives in the short term. Methods A total of 28 molars were used in this study. The dentin surfaces were bonded with the following adhesives: All-Bond 3 (ALB3); Fusion Duralink (FSDL); Optibond FL (OBFL), and Scotchbond Multi-Purpose (SBMP). After each adhesive-system application, composite resin build-ups were added. For bonding tests, specimens were sectioned in order to obtain bonded sticks. The sticks were divided to be tested for μTBS (0.5 mm/min), for NL (n=2), and ISDC (n=2). For NL, they were immersed in 50% silver nitrate and analyzed by scanning election microscopy. For ISDC, the hybrid layer was evaluated by micro-Raman spectroscopy. An hourglass-shaped matrix (UTS) or disk-shaped matrix (WS and SL) was filled with primer and adhesive (1:1 ratio) and light-polymerized. For UTS evaluation, the specimens were tested under tension. For WS and SL, specimens were desiccated and stored in distilled water to evaluate water diffusion kinetics over a 28-day period. The DC of the adhesives was evaluated by Fourier transformed infrared spectroscopy. The data from each test were analyzed by appropriate statistical methods. Results OBFL resulted in the highest μTBS, lower NL, higher ISDC and DC, and higher UTS than other adhesives (p&lt;0.05), as well as lower WS (similar to ALB3 and FSDL) and SL (similar to ALB3 and SBMP) (p&gt;0.05). ALB3 showed a higher NL and the lowest DC value. FSDL showed the highest NL and SL and the lowest ISDC. SBMP showed the lowest pattern of WS (p&lt;0.05). Conclusion OBFL showed the best results in all the properties evaluated, and it can be considered the gold standard of the three-step etch-and-rinse adhesive systems.

scholarly journals Interaction between photoactivators and adhesive systems used as modeling liquid on the degree of conversion of a composite for bleached teeth

2018 ◽  
Vol 21 (3) ◽  
pp. 270
Author(s):  
Thiago Jonathan Silva Dos Santos ◽  
Ana Margarida Dos Santos Melo ◽  
Matheus Dantas Tertulino ◽  
Boniek Castillo Dutra Borges ◽  
Ademir Oliveira Da Silva ◽  
...  
Keyword(s):  
Composite Resin ◽  
Composite Resins ◽  
Degree Of Conversion ◽  
Control Group ◽  
Single Bond ◽  
Adhesive Systems ◽  
Bonding Agents ◽  
Composite Surface ◽  
Light Emitting ◽  
Made In

<p><strong>Objective: </strong>This study analyzed the effect of two light emitting diodes (LEDs) on the degree of conversion (DC) of a composite resin for bleached teeth under the influence of adhesives systems used as modeling liquid. <strong>Material and methods: </strong>A total of 60 samples of IPS Empress Direct resin (Ivoclar, Vivadent) in BL-L shade were made in a single increment and polymerized for 20 seconds. The treatments were: 1) Type of adhesive used as modeling liquid (Adper Single Bond 2; the bond component of Adper Scotchbond Multi-Purpose; or no adhesive systems used as modeling liquid were used in the control group); and 2) Type of LED (Bluephase, polywave; and Coltolux, monowave). The DC, percentage of monomers converted to polymer during polymerization, was were evaluated using Fourier Transform Infrared Spectroscopy (FTIR) with 10 scans and wavenumber related to 1/λ for observation of the peaks at 1608 and 1638 cm<sup>-1</sup>. Data were statistically analyzed by two-way analysis of variance (ANOVA) with Tukey's test (<em>p</em>&lt; 0.05). <strong>Results:</strong> There was no statistical difference between LEDs in comparison to the treatments (<em>p</em>&gt; 0.05). However, there was a statistically significant increase in the DC for the adhesive systems tested in comparison to the control group (<em>p</em>&lt; 0.05), with the highest values for Single Bond 2. <strong>Conclusion:</strong> It is concluded that the use of adhesives as modeling liquid of Empress Direct resin for bleached teeth shade increases the degree of conversion of the composite surface, and that curing with both kinds of LEDs does not interfere in this property.</p><p><strong> </strong></p><p><strong>Keywords</strong></p><p><strong></strong>Composite resins; Dentin-bonding agents; Surface properties.</p>

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