Incremental Layer Shear Bond Strength of Low-shrinkage Resin Composites Under Different Bonding Conditions

2014 ◽  
Vol 39 (6) ◽  
pp. 603-611 ◽  
Author(s):  
AH Al Musa ◽  
HNA Al Nahedh
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Resin Composites ◽  
Adhesive Resin ◽  
Aging Conditions ◽  
Bond Strengths

SUMMARY The purpose of this study was to determine the incremental shear bond strength of a silorane-based composite (Filtek Silorane) repaired with silorane or a methacrylate-based composite (Filtek Z250) under various aging conditions. Also, the incremental bond strength of the silorane-based composite was compared with that of another low-shrinkage methacrylate-based composite (Aelite LS Posterior) under fresh and aged conditions, with and without the use of an adhesive resin between successive layers. The two brands of low-shrinkage composites were compared with a microhybrid, Filtek Z250, which served as the control. Substrate discs were fabricated and second layers were adhered to them immediately, after two weeks of aging, or after four weeks of aging and with and without an adhesive resin. Shear bond strengths were measured and failure modes were evaluated. The incremental bond strength of silorane to the silorane-based composite was not significantly different from that of the methacrylate-based composite. However, repairing a silorane-based composite with a methacrylate-based composite significantly reduced the bond strength. Aelite showed a lower incremental bond strength than Z250 and silorane, but the use of an adhesive significantly improved the bond strength. The absence of an oxygen-inhibited layer did not affect the bond strength of the consecutive layers of the silorane-based composite.

scholarly journals Bond strength of modern self-adhesive resin cements to human dentin and different CAD/CAM ceramics

2020 ◽  
Vol 22 (2) ◽  
Author(s):  
Andrzej Małysa ◽  
Joanna Weżgowiec ◽  
Dariusz Danel ◽  
Klauss Boening ◽  
Katarzyna Walczak ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Shear Strength Test ◽  
Software Failure ◽  
Human Dentin ◽  
Cad Cam ◽  
Bond Strengths

Purpose: The aim of the study was to evaluate the shear bond strength of CAD/CAM ceramics to dentin after cementation with conventional or self-adhesive resin cements. Methods: Three self-adhesive, self-etching cements (Panavia SA, RelyX U200, Maxcem Elite), and one conventional cement (Panavia V5), were selected to lute three CAD/CAM ceramics (IPS Empress CAD, IPS e.max CAD, IPS e.max ZirCAD) onto the dentin. The bond strength was evaluated using a shear strength test according to the PN-EN ISO 29022:2013-10. Evaluation of the differences was performed using the Statistica software. Failure modes were analyzed using a light microscope. Results: All the studied cements differed (regardless of the ceramic type) in the bond strength. The highest bond strength was observed in Panavia V5, lower – in RelyX U200 and Panavia SA, and the lowest – in Maxcem. For IPS e.max ZirCAD, it was observed that compared to Panavia V5, the other cements were characterized by a significantly higher bond strength. For the IPS Empress CAD and the IPS e.max CAD, Panavia V5 displayed the highest bond strength. For all the studied self-adhesive cements, the failure of adhesion between the cement and dentin was predominant mode. Conclusions: Significant differences were found in the shear bond strengths of the CAD/CAM ceramics luted to dentin using tested self-adhesive and conventional cements. The bond strength depended on the combination of ceramic and cement. The IPS e.max ZirCAD had the highest bond strength to dentin after cementation with RelyX U200, while the IPS Empress CAD and IPS e.max CAD – with Panavia V5.

scholarly journals In Vitro Shear Bond Strength of Three Self-adhesive Resin Cements and a Resin-Modified Glass Ionomer Cement to Various Prosthodontic Substrates

2013 ◽  
Vol 38 (2) ◽  
pp. 186-196 ◽  
Author(s):  
Camila Sabatini ◽  
Manthan Patel ◽  
Eric D'Silva
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Setting Reaction ◽  
Resin Modified Glass Ionomer ◽  
Bond Strengths ◽  
Ionomer Cement

SUMMARY Objective To evaluate the shear bond strength (SBS) of three self-adhesive resin cements and a resin-modified glass ionomer cement (RMGIC) to different prosthodontic substrates. Materials and Methods The substrates base metal, noble metal, zirconia, ceramic, and resin composite were used for bonding with different cements (n=12). Specimens were placed in a bonding jig, which was filled with one of four cements (RelyX Unicem, Multilink Automix, Maxcem Elite, and FujiCEM Automix). Both light-polymerizing (LP) and self-polymerizing (SP) setting reactions were tested. Shear bond strength was measured at 15 minutes and 24 hours in a testing device at a test speed of 1 mm/min and expressed in MPa. A Student t-test and a one-way analysis of variance (ANOVA) were used to evaluate differences between setting reactions, between testing times, and among cements irrespective of other factors. Generalized linear regression model and Tukey tests were used for multifactorial analysis. Results Significantly higher mean SBS were demonstrated for LP mode relative to SP mode (p<0.001) and for 24 hours relative to 15 minutes (p<0.001). Multifactorial analysis revealed that all factors (cement, substrate, and setting reaction) and all their interactions had a significant effect on the bond strength (p<0.001). Resin showed significantly higher SBS than other substrates when bonded to RelyX Unicem and Multilink Automix in LP mode (p<0.05). Overall, FujiCEM demonstrated significantly lower SBS than the three self-adhesive resin cements (p<0.05). Conclusions Overall, higher bond strengths were demonstrated for LP relative to SP mode, 24 hours relative to 15 minutes and self-adhesive resin cements compared to the RMGICs. Bond strengths also varied depending on the substrate, indicating that selection of luting cement should be partially dictated by the substrate and the setting reaction.

Assessment of Self-Adhesive Resin Composites: Nondestructive Imaging of Resin–Dentin Interfacial Adaptation and Shear Bond Strength

2015 ◽  
Vol 21 (6) ◽  
pp. 1523-1529 ◽  
Author(s):  
Patricia Makishi ◽  
Rafael R. Pacheco ◽  
Alireza Sadr ◽  
Yasushi Shimada ◽  
Yasunori Sumi ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composites ◽  
Third Molars ◽  
Average Strength ◽  
Adhesive Resin ◽  
High Brightness ◽  
Significant Difference ◽  
Nondestructive Imaging ◽  
Vertise Flow

AbstractShear bond strength (SBS) and the interfacial adaptation (IA) of self-adhesive resin (SAR) composites to dentin were evaluated. Two SARs [Vertise Flow (VTF) and Fusio Liquid Dentin (FLD)] were evaluated and compared with a conventional restorative system [adhesive: OptiBond FL and composite: Herculite Précis (OBF/HP)]. Human third molars were used for SBS testing and IA imaging (n=7) using optical coherence tomography (OCT). Flattened dentin disks were prepared and the composites were applied into molds (2.4 mm diameter) that were positioned on dentin. Samples were subjected to SBS testing and OCT analysis, which considered an increase in signal intensity at the bonded interface as evidence of internal gaps. SBS data were analyzed by one-way analysis of variance and Tukey’s test and IA data (% distribution of high brightness values) by Kruskal–Wallis and Dunn’s test (p≤0.05). No statistically significant difference in SBS was observed between VTF (13.9±3.6 MPa) and FLD (11.3±3.2 MPa), whereas OBF/HP showed higher average strength (27.3±6.1 MPa). However, there was a statistically significant difference in IA when VTF (33.3%) was compared with FLD (1.2%) and OBF/HP (1.5%). The conventional restorative system exhibited superior SBS performance compared with SARs. However, the IA of FLD to dentin had values that were not significantly different from OBF/HP.

scholarly journals Shear Bond Strength of Brackets Rebonded with a Fluoride-Releasing and -Recharging Adhesive System

2009 ◽  
Vol 79 (3) ◽  
pp. 564-570 ◽  
Author(s):  
Toshiya Endo ◽  
Rieko Ozoe ◽  
Koichi Shinkai ◽  
Makiko Aoyagi ◽  
Hiroomi Kurokawa ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Testing Machine ◽  
Adhesive System ◽  
Adhesive Systems ◽  
Bond Failure ◽  
Minimum Requirement ◽  
Adhesive Remnant Index ◽  
Bond Strengths

Abstract Objective: To ascertain the effects of repeated bonding on the shear bond strength of orthodontic brackets bonded with a fluoride-releasing and -recharging adhesive system with a self-etching primer in comparison with two other types of adhesive system. Materials and Methods: A total of 48 premolars were collected and divided equally into three groups of 16. Each group was assigned one of three adhesive systems: Transbond XT, Transbond Plus, or a fluoride-releasing and -recharging adhesive system, Beauty Ortho Bond. Shear bond strength was measured 24 hours after bracket bonding, with the bonding/debonding procedures repeated twice after the first debonding. A universal testing machine was used to determine shear bond strengths, and bracket/adhesive failure modes were evaluated with the adhesive remnant index after each debonding. Results: At every debonding sequence, all of these three adhesive systems had a shear bond strength of 6 MPa, which is a minimum requirement for clinical use. Transbond XT and Transbond Plus had significantly higher mean shear bond strengths than did Beauty Ortho Bond at each debonding. No significant differences in mean bond strength were observed between the three debondings in each adhesive system. Bond failure at the enamel/adhesive interface occurred more frequently in Beauty Ortho Bond than in Transbond XT or Transbond Plus. Conclusions: The fluoride-releasing and -recharging adhesive system with the self-etching primer (Beauty Ortho Bond) had clinically sufficient shear bond strength in repeated bracket bonding; this finding can help orthodontists to decrease the risk of damage to enamel at debonding.

scholarly journals Effects of CPP-ACP Paste on the Shear Bond Strength of Orthodontic Brackets

2009 ◽  
Vol 79 (5) ◽  
pp. 945-950 ◽  
Author(s):  
Ding Xiaojun ◽  
Lu Jing ◽  
Guo Xuehua ◽  
Ruan Hong ◽  
Yu Youcheng ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Artificial Saliva ◽  
Orthodontic Brackets ◽  
Acid Etching ◽  
Bonding System ◽  
Significant Difference ◽  
Bond Strengths ◽  
Scanning Electron

Abstract Objective: To evaluate the effect of casein phosphopeptide–amorphous calcium phosphate (CPP-ACP) paste on shear bond strength and debonding failure modes of orthodontic brackets. Materials and Methods: Freshly extracted premolars were randomly divided into four groups (n =18) as follows: in groups 1 and 3, the enamel was treated with a solution of CPP-ACP dissolved in artificial saliva; groups 2 and 4 served as controls, and the enamel was treated with artificial saliva. After conventional acid etching, in groups 1 and 2, brackets were bonded using a light-cured bonding system (Blugloo); while in groups 3 and 4, brackets were bonded using a conventional bonding system (Unite Bonding Adhesive). Bonded specimens were subjected to thermal cycling for 1000 cycles before debonding procedures. After debonding, teeth and brackets were examined under a stereomicroscope at 10× magnification to determine whether any adhesive remained, in accordance with the adhesive remnant index. The acid-etched enamel surfaces were also observed using scanning electron microscopy after treatment with and without CPP-ACP paste. Results: The shear bond strengths of group 1 were significantly higher than those seen in group 2 (P < .01). There was no significant difference in the shear bond strengths of groups 3 and 4 (P > .05). Scanning electron microscopic observation showed that the pretreated enamel surface was rougher than that of the control surface after acid etching. Conclusion: The use of CPP-ACP can be considered as an alternative prophylactic application in orthodontic practice since it did not compromise bracket bond strength.

Deproteinization Treatment on Bond Strengths of Primary, Mature and Immature Permanent Tooth Enamel

2013 ◽  
Vol 37 (3) ◽  
pp. 275-280 ◽  
Author(s):  
S Aras ◽  
HC Küçükeçmen ◽  
Sönmez I öaroğlu
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Tooth Enamel ◽  
Permanent Tooth ◽  
Permanent Teeth ◽  
Acid Etching ◽  
Control Groups ◽  
Adhesive Resin ◽  
Multiple Comparison Test ◽  
Bond Strengths

Objective: The aim of this study was to examine the effect of pre-post deproteinization treatment with 5% sodium hypochloride on shear bond strength (sbs) of adhesive resin to primary, immature and mature permanent teeth enamel. Method: 30 teeth were used for each of primary, immature and mature permanent teeth groups. (totally 90). In control groups, enamel was etched for 60s with 37% phosphoric acid (3M) and rinsed for 10s (Procedure A). In experimental groups, deproteinization was applied with 5% NaOCI solution for 120s before (Procedure D+A) and after acid-etching (Procedure A+D). Gluma Comfort Bond (Heraeus-Kulzer) and Charisma (Heraeus-Kulzer) composite resin were applied to etched enamel surfaces. Data were determined with Two-Way ANOVA and LSD Multiple Comparison Test (p<0.05). Results: SBS was significantly lower in primary and immature permanent teeth than mature permanent teeth (p<0.05). “Procedure A+D” statistically increased sbs values in primary and immature permanent teeth (p<0.05). Conclusion: Deproteinization after acid etching significantly enhanced the shear bond strength values in primary and immature permanent teeth.

scholarly journals Effect of Bleaching and Thermocycling on Resin-Enamel Bond Strength

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Horieh Moosavi ◽  
Hamideh Sadat Mohammadipour ◽  
Marjaneh Ghavamnasiri ◽  
Sanaz Alizadeh
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Resin Composites ◽  
Single Bond ◽  
Carbamide Peroxide ◽  
Adhesive Resin ◽  
Microshear Bond Strength ◽  
Self Etch ◽  
Composite Cylinders

The aim of this study was to evaluate the effect of bleaching and thermocycling on microshear bond strength of bonded resin composites to enamel. Enamel slices were prepared from ninety-six intact human premolars and resin composite cylinders were bonded by using Adper Single Bond 2 + Filtek Z350 or Filtek silorane adhesive and resin composite. Each essential group was randomly subdivided to two subgroups: control and bleaching. In bleaching group, 35% hydrogen peroxide was applied on samples. Thermocycling procedure was conducted between 5°C and 55°C, for 3.000 cycles on the half of each subgroup specimen. Then microshear bond strength was tested. Methacrylate-based resin composite had higher bond strength than silorane-based one. The meyhacrylate-based group without bleaching along with thermocycling showed the most bond strength, while bleaching with 35% carbamide peroxide on silorane-based group without thermocycling showed the least microshear bond strength. Bleaching caused a significant degradation on shear bond strength of silorane-based resin composites that bonded using self-etch adhesive resin systems.

scholarly journals Shear bond strength between alumina substrate and prosthodontic resin composites with various adhesive resin systems

2015 ◽  
Vol 15 (1) ◽  
Author(s):  
Yousef A AlJehani ◽  
Jagan K Baskaradoss ◽  
Amrita Geevarghese ◽  
Marey A AlShehry ◽  
Pekka K Vallittu
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Alumina Substrate ◽  
Resin Composites ◽  
Adhesive Resin

Shear Bond Strength between Fiber-Reinforced Composite and Veneering Resin Composites with Various Adhesive Resin Systems

2015 ◽  
Vol 25 (5) ◽  
pp. 392-401 ◽  
Author(s):  
Yousef A. AlJehani ◽  
Jagan K. Baskaradoss ◽  
Amrita Geevarghese ◽  
Marey A. AlShehry ◽  
Pekka K. Vallittu
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composites ◽  
Fiber Reinforced ◽  
Adhesive Resin ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

scholarly journals Comparison of Shear Bond Strengths of Conventional Resin Cement and Self-adhesive Resin Cement bonded to Lithium Disilicate: An in vitro Study

2017 ◽  
Vol 18 (10) ◽  
pp. 881-886 ◽  
Author(s):  
Anip K Roy ◽  
Dennis Mohan ◽  
M Sunith ◽  
Rashmi B Mandokar ◽  
S Suprasidh ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Lithium Disilicate ◽  
Resin Cement ◽  
Tooth Surface ◽  
Ceramic Surface ◽  
Adhesive Resin ◽  
Bond Strengths ◽  
Adhesive Resin Cement

ABSTRACT Aim The aim of this study is to compare the shear bond strengths of conventional resin cement and self-adhesive resin cement bonded to lithium disilicate. Materials and methods A total of 40 extracted human molar teeth were mounted in self-cure acrylic resin. Teeth were prepared to obtain flat occlusal surface. About 40 lithium disilicate specimens of dimension—10 mm in diameter and thickness of 2 mm—were fabricated using lost wax technique. The samples were divided into four groups: Groups I, II, III, and IV (n = 10). The specimens were surface treated with Monobond S silane coupling agent. Self-etching primer and bonding agent were applied on the bonding surface of the teeth in groups I and III. The specimens were bonded to the primed teeth with the Multilink N resin cement and subjected to the universal testing machine. The specimens were light-cured. Specimens in groups II and IV were luted to teeth using self-adhesive cement RelyX U100. The same force was applied over the specimen as mentioned above. Excess cement was removed, and light curing was done. The specimens in groups III and IV were subjected to thermocycling for 10,000 cycles at temperatures altering between 5°C and 55°C. Results The shear bond strengths of conventional resin cement and self-adhesive resin cement with lithium disilicate were tested before and after thermocycling. Results indicated thermocycling has no significant effect on the bond strengths of conventional or self-adhesive resin cement. However, from the study, it is seen that conventional resin cement had a higher shear bond strength value than the self-adhesive resin cement. Conclusion There was a significant difference between the average shear bond strength values of conventional resin cement (Multilink N) and self-adhesive resin cement (RelyX U100) when bonded to lithium disilicate disks, and thermocycling had no significant effect on the bond strength of conventional or self-adhesive resin cements. Clinical significance Among all-ceramic systems available, lithium disilicate materials have emerged as an excellent esthetic material for fabrication of anterior and posterior crowns and three-unit anterior fixed partial dentures because of their high translucency and improved optical properties. For successful clinical outcomes, the luting agent should have high bond strength not only to the ceramic surface, but also to the tooth surface. How to cite this article Roy AK, Mohan D, Sunith M, Mandokar RB, Suprasidh S, Rajan S. Comparison of Shear Bond Strengths of Conventional Resin Cement and Self-adhesive Resin Cement bonded to Lithium Disilicate: An in vitro Study. J Contemp Dent Pract 2017;18(10):881-886.

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