scholarly journals Adhesion of Resin-Resin and Resin–Lithium Disilicate Ceramic: A Methodological Assessment

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3870
Author(s):  
Simon Guggenbühl ◽  
Abdulmonem Alshihri ◽  
Nadin Al-Haj Husain ◽  
Mutlu Özcan
Keyword(s):  
Bond Strength ◽  
Glass Ceramic ◽  
Weibull Modulus ◽  
Resin Composite ◽  
Testing Machine ◽  
Ceramic Materials ◽  
Test Methods ◽  
Test Method ◽  
Significant Difference ◽  
Failure Types

The aim of this study was to evaluate four test methods on the adhesion of resin composite to resin composite, and resin composite to glass ceramic. Resin composite specimens (N = 180, Quadrant Universal LC) were obtained and distributed randomly to test the adhesion of resin composite material and to ceramic materials (IPS e.max CAD) using one of the four following tests: (a) Macroshear SBT: (n = 30), (b) macrotensile TBT: (n = 30), (c) microshear µSBT: (n = 30) and (d) microtensile µTBT test (n = 6, composite-composite:216 sticks, ceramic-composite:216 sticks). Bonded specimens were stored for 24 h at 23 °C. Bond strength values were measured using a universal testing machine (1 mm/min), and failure types were analysed after debonding. Data were analysed using Univariate and Tukey’s, Bonneferroni post hoc test (α = 0.05). Two-parameter Weibull modulus, scale (m), and shape (0) were calculated. Test method and substrate type significantly affected the bond strength results, as well as their interaction term (p < 0.05). Resin composite to resin composite adhesion using SBT (24.4 ± 5)a, TBT (16.1 ± 4.4)b and µSBT (20.6 ± 7.4)a,b test methods presented significantly lower mean bond values (MPa), compared to µTBT (36.7 ± 8.9)b (p < 0.05). When testing adhesion of glass ceramics to resin composite, µSBT (6.6 ± 1)B showed the lowest and µTBT (24.8 ± 7)C,D the highest test values (MPa) (SBT (14.6 ± 5)A,D and TBT (19.9 ± 5)A,B) (p < 0.05). Resin composite adhesion to ceramic vs. resin composite did show significant difference for the test methods SBT and µTBT (resin composite (24.4 ± 5; 36.7 ± 9 MPa) vs. glass ceramic (14.6 ± 5; 25 ± 7 MPa)) (p > 0.05). Among substrate–test combinations, Weibull distribution presented the highest shape values for ceramic–resin in µSBT (7.6) and resin–resin in µSBT (5.7). Cohesive failures in resin–resin bond were most frequently observed in SBT (87%), followed by TBT (50%) and µSBT (50%), while mixed failures occurred mostly in ceramic–resin bonds in the SBT (100%), TBT (90%), and µSBT (90%) test types. According to Weibull modulus, failure types, and bond strength, µTBT tests might be more reliable for testing resin-based composites adhesion to resin, while µSBT might be more suitable for adhesion testing of resin-based composites to ceramic materials.

scholarly journals Comparison of the Shear bonding Strength of ION-Z GIC to a Resin Composite Using Different Adhesive Systems: RCT Study

2020 ◽  
Author(s):  
Sana Lala ◽  
Thuraya Lazkani
Keyword(s):  
Bond Strength ◽  
Bonding Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Testing Machine ◽  
Group Iii ◽  
Group I ◽  
Significant Difference ◽  
Self Etch ◽  
Shear Bonding Strength

Abstract Background:In restorative dentistry we usually use Sandwich Technique for posterior restorations where GIC is placed below and a resin composite is placed over it. The bonding strength between these two materials are low. We are looking for the best adhesive system to put it in between. We think that the self-etching bond will give the best bonding strength between them whereas total etch will give lower bonding strength than self-etching system. Methods:ION-Z GIC was bonded to resin composite by using two different bonding agents. The thirty specimens used were prepared by using acrylic blocks with holes in each hole to retain the ION-Z GIC. The specimens were randomly divided into three groups:Group I: Control group.Group II: Total-etch adhesive was applied and cured over ION-Z GIC.Group III: Self-etch adhesive was applied and cured.The composite resin placed over the ION-Z GIC and cured. The shear bond strength was measured by shearing of the bonded specimens on Universal Testing Machine (Model 114) using speed of 0.1mm / minute. The reading was tabulated and subjected to statistical analysis using ANOVA and Tukey's test.Results:The test showed statistically significant difference between Group III and Group I and between Group III and Group II. Group III had the highest shear bonding strength.Conclusion:Self-etch adhesive agent produces have better shear bond strength to ION-Z than total-etch adhesive and to the group without any bonding agent.

scholarly journals The Effect of Different Bleaching Protocols, Used with and without Sodium Ascorbate, on Bond Strength between Composite and Enamel

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2710 ◽  
Author(s):  
Maroun Ghaleb ◽  
Giovanna Orsini ◽  
Angelo Putignano ◽  
Sarah Dabbagh ◽  
Georges Haber ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Bond Strength ◽  
Resin Composite ◽  
Testing Machine ◽  
Sodium Ascorbate ◽  
Control Group ◽  
Carbamide Peroxide ◽  
Total N ◽  
Peroxide Group ◽  
Significant Difference

This in vitro study aims to evaluate whether a solution of 10% sodium ascorbate (SA) may exert a beneficial effect on the bonding of composite to enamel after using different bleaching agents and protocols. Microtensile bond strength (µTBS) was evaluated on 72 freshly extracted human central incisors, divided into eight experimental groups and one control group (total n = 9): Group 1 serves as control (nonbleached). Group 2 was bleached with 5% carbamide peroxide. Group 3 was bleached with 5% carbamide peroxide and then treated with 10% SA. Group 4 was bleached with 10% carbamide peroxide. Group 5 was bleached with 10% carbamide peroxide, then treated with 10% SA. Group 6 was bleached with 16% carbamide peroxide. Group 7 was bleached with 16% carbamide peroxide, then treated with 10% SA. Group 8 was bleached with 6% hydrogen peroxide. Group 9 was bleached with 6% hydrogen peroxide, then treated with 10% SA. All groups were restored immediately after the different treatments using a resin composite. The µTBS values were measured using a universal testing machine and statistical analysis was performed by means of normality and variance analyses, SIDAK test for univariate test and multiple comparisons, and Student test to compare µTBS values of each group with the control. The mean µTBS values in groups 2, 4, 6, 8 were significantly lower than controls. For groups 3, 5, 7, 9, subjected to antioxidant (10% SA) application, all µTBS values increased significantly. However, only for Groups 3 and 5 there was no significant difference with the control. Applying 10% SA for 10 min may improve the bond strength composite/bleached enamel just when whitening is performed with 5% and 10% carbamide peroxide.

scholarly journals Effect of Dentin Preparation Mode on the Bond Strength Between Human Dentin and Different Resin Cements

2018 ◽  
Vol 29 (3) ◽  
pp. 268-274 ◽  
Author(s):  
Lara Almeida Cyrillo Cerqueira ◽  
Ana Rosa Costa ◽  
Ana Maria Spohr ◽  
Eduardo Miyashita ◽  
Benito André Silveira Miranzi ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Testing Machine ◽  
Resin Cement ◽  
Hybrid Layer ◽  
Resin Cements ◽  
Diamond Bur ◽  
Cross Section Area ◽  
Significant Difference ◽  
Preparation Mode

Abstract The aim was to evaluate the influence of different dentin preparation mode in the smear layer characteristics (SL), hybrid layer (HL), and microtensile bond strength (µTBS) to dentin with two resin cements. The occlusal dentin of 120 third molars was exposed. The teeth were divided into 4 groups (n=30) according to the dentin preparation mode: 1- fine grain diamond bur; 2- coarse grain diamond bur; 3- multi laminate carbide steel bur; and, 4- ultrasonic CV Dentus diamond bur. Each treated dentin group was divided into 2 sub-groups (n=15) according to the resin cement: (1) RelyX U200 and (2) RelyX ARC. Resin composite blocks were cemented on dentin. After storage at 37o C for 24 h, beams with a cross section area of 1.0 mm2 were obtained, and tested in a universal testing machine at a crosshead speed of 0.5 mm/min. Two additional teeth for each sub-group were prepared to analyze the SL and HL on a scanning electron microscopy. According to Kruskal-Wallis test and Dunn tests, there was no significant difference in µTBS among the rotary instruments within each resin cement group. RelyX ARC obtained higher µTBS values compared to RelyX U200 (p<0.05). RelyX ARC formed evident HL, which was not observed for RelyX U200. The dentin mode preparation did not influence the µTBS of the resin cements. The SL was different for all instruments. The cementing agent is more determinant in the hybrid layer formation and bond strength to dentin than the instruments applied on dentin.

Influence of Ceramic Thickness and Ceramic Materials on Fracture Resistance of Posterior Partial Coverage Restorations

2015 ◽  
Vol 40 (2) ◽  
pp. 211-217 ◽  
Author(s):  
EM Bakeman ◽  
N Rego ◽  
Y Chaiyabutr ◽  
JC Kois
Keyword(s):  
Glass Ceramic ◽  
Fracture Resistance ◽  
Testing Machine ◽  
Lithium Disilicate ◽  
Ceramic Materials ◽  
Tooth Structure ◽  
Partial Coverage ◽  
Significant Difference ◽  
Ceramic Thickness ◽  
Ceramic Restorations

SUMMARY This study evaluated the influence of ceramic thickness and ceramic materials on fracture resistance of posterior partial coverage ceramic restorations. Forty extracted molars were allocated into four groups (n=10) to test for two variables: 1) the thickness of ceramic (1 mm or 2 mm) and 2) the ceramic materials (a lithium disilicate glass-ceramic [IPS e.max] or leucite-reinforced glass ceramic [IPS Empress]). All ceramic restorations were luted with resin cement (Variolink II) on the prepared teeth. These luted specimens were loaded to failure in a universal testing machine, in the compression mode, with a crosshead speed of 1.0 mm/min. The data were analyzed using two-way analysis of variance and the Tukey Honestly Significantly Different multiple comparison test (α =0.05). The fracture resistance revealed a significant effect for materials (p&lt;0.001); however, the thickness of ceramic was not significant (p=0.074), and the interaction between the thickness of ceramic and the materials was not significant (p=0.406). Mean (standard deviation) fracture resistance values were as follows: a 2-mm thickness of a lithium disilicate bonded to tooth structure (2505 [401] N) revealed a significantly higher fracture resistance than did a 1-mm thickness of leucite-reinforced (1569 [452] N) and a 2-mm thickness of leucite-reinforced ceramic bonded to tooth structure (1716 [436] N) (p&lt;0.05). There was no significant difference in fracture resistance values between a lithium disilicate ceramic at 1-mm thickness (2105 [567] N) and at 2-mm thickness. Using a lithium disilicate glass ceramic for partial coverage restoration significantly improved fracture resistance compared to using a leucite-reinforced glass ceramic. The thickness of ceramic had no significant effect on fracture resistance when the ceramics were bonded to the underlying tooth structure.

scholarly journals Effect of tooth age on bond strength to dentin

2003 ◽  
Vol 11 (4) ◽  
pp. 342-347 ◽  
Author(s):  
Marcelo Giannini ◽  
Patrícia Chaves ◽  
Marcelo Tavares de Oliveira
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Testing Machine ◽  
Age Groups ◽  
In Vitro Study ◽  
Adhesive System ◽  
Tensile Bond Strength ◽  
Significant Difference ◽  
Diamond Saw

This in vitro study evaluated the effect of tooth age on the tensile bond strength of Prime & Bond NT adhesive system to dentin. Human third molars from the five age groups were analyzed: A- 17 to 20yrs, B- 21 to 30yrs, C- 31 to 40yrs, D- 41 to 50yrs and E- 51 to 63yrs. The occlusal enamel was removed using a diamond saw under water cooling and the dentin surface was wet-ground with 600-grit SiC paper to obtain flat surfaces. The adhesive system was applied according to the manufacturer's instructions and a 6-mm high resin "crown" was built-up with resin composite. Teeth were stored for 24 hours in distilled water at 37ºC and prepared for micro-tensile testing. Each specimen was mounted in a testing jig attached to a universal testing machine and stressed in tension at a crosshead speed of 0.5mm/min until failure. The means of tensile bond strength were (MPa): A- 21.42 ± 7.52ª; B- 30.13 ± 10.19ª; C- 31.69 ± 11.78ª; D- 30.69 ± 8.47ª and E- 35.66 ± 9.54ª. No statistically significant difference was observed among the age groups (p > 0.05). The results suggested that the tensile bond strength of the adhesive system was not significantly affected by dentin aging.

scholarly journals Evaluation of wettability characteristics and adhesion of resin composite to photo-polymerized pulp-capping materials with and without bioactive glass

2019 ◽  
Vol 22 (3) ◽  
pp. 335-343
Author(s):  
Fatih Tulumbaci ◽  
Emre Korkut ◽  
Hazal Ozer ◽  
Mutlu Özcan
Keyword(s):  
Contact Angle ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Sessile Drop ◽  
Resin Composite ◽  
Testing Machine ◽  
Adhesive System ◽  
Significant Difference ◽  
Mechanical And Physical Properties ◽  
Made In

Objective: The purpose of this study was to evaluate mechanical and physical properties of three different light-curable resin-based materials (TheraCal LC, Biner LC, and CalciPlus LC) with or without BAG. Material and Methods: 15 cylindrically shaped specimens (n=5) were prepared for contact angle test. The test values (Θ) were determined with the sessile drop method using three test liquids. 30 acrylic cylindrical blocks were prepared, and holes of (6mmx1mm) were made in the center of the cylinders for shear bond strength test. An adhesive system and a restorative composite material were applied via cylindrically shaped plastic tubes of (2mmx2mm) at the center of the light-curable resin-based material surfaces. The specimens were mounted in a universal testing machine. A crosshead speed of 1 mm/min was applied to each specimen using a knife-edge blade. Results: The highest (74.77°±13.56) and the lowest (35.35°±12.89) contact angle values were recorded for the MB Biner LC group and the CalciPlus LC, respectively. Statistically significant differences observed in contact angle values between the test groups (p<0.05). The surface free energy of Biner LC (γS 36.22) was lower than that of TheraCal LC (γS 44.70) and CalciPlus LC (γS 46.20) (p<0.05). There was no significant difference in shear bond strength values between TheraCal LC and CalciPlus LC (p>0.05). Conclusions: Hydrophilic property of Theracal LC and Calciplus LC resulted in better bonding strength in these materials. The BAG used in Calciplus LC did not adversely affect mechanical and surface properties of the material.

scholarly journals Comparison of the Shear bonding Strength of ION-Z GIC to a Resin Composite Using Different Adhesive Systems: RCT Study

2021 ◽  
Author(s):  
Sana Lala ◽  
Thuraya Lazkani
Keyword(s):  
Bond Strength ◽  
Bonding Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Testing Machine ◽  
Group Iii ◽  
Group I ◽  
Significant Difference ◽  
Self Etch ◽  
Shear Bonding Strength

Abstract Background:In restorative dentistry we usually use Sandwich Technique for posterior restorations where GIC is placed below and a resin composite is placed over it. The bonding strength between these two materials are low. We are looking for the best adhesive system to put it in between. We think that the self-etching bond will give the best bonding strength between them whereas total etch will give lower bonding strength than self-etching system. Methods:ION-Z GIC was bonded to resin composite by using two different bonding agents. The thirty specimens used were prepared by using acrylic blocks with holes in each hole to retain the ION-Z GIC. The specimens were randomly divided into three groups:Group I: Control group.Group II: Total-etch adhesive was applied and cured over ION-Z GIC.Group III: Self-etch adhesive was applied and cured.The composite resin placed over the ION-Z GIC and cured. The shear bond strength was measured by shearing of the bonded specimens on Universal Testing Machine (Model 114) using speed of 0.1mm / minute. The reading was tabulated and subjected to statistical analysis using ANOVA and Tukey's test.Results:The test showed statistically significant difference between Group III and Group I and between Group III and Group II. Group III had the highest shear bonding strength.Conclusion:Self-etch adhesive agent produces have better shear bond strength to ION-Z than total-etch adhesive and to the group without any bonding agent.

scholarly journals Remineralization potential and mechanical evaluation of a bioactive glass containing composite (An ex vivo study)

2021 ◽  
Vol 9 (D) ◽  
pp. 179-185
Author(s):  
Nouran Hussein ◽  
Dina A. El Refai ◽  
Ghada Atef Alian
Keyword(s):  
Wear Resistance ◽  
Bond Strength ◽  
Ex Vivo ◽  
Resin Composite ◽  
Testing Machine ◽  
Restorative Material ◽  
Ion Release ◽  
Significant Difference ◽  
Restorative Materials ◽  
Microshear Bond Strength

Abstract AIM: The aim of this study was to compare the remineralization ability, ion release, microshear bond strength and wear resistance of a claimed bioactive restorative material (ACTIVA BioACTIVE Restorative, Pulpdent Corporation, Watertown, USA) with the conventional resin composite (​Filtek Z350 XT, 3M ESPE Elipar, Germany). MATERIALS AND METHODS: The remineralization ability was evaluated after 28 days using Energy Dispersive X-Ray (EDX) analysis. Ion release was investigated at three-time intervals: 1, 14 and 28 days. Calcium and phosphate ions release were determined by using ion chromatography system. Microshear bond strength was assessed using Universal Testing Machine. A wear test was conducted using a dual axis chewing simulator. RESULTS: ACTIVA™ was found to induce remineralization to the demineralized dentin. Results revealed that ACTIVA™ released Ca2+ and PO4-3 ions, whilst Filtek Z350 XT did not. Concerning microshear bond strength ACTIVA™ without adhesive application showed unacceptable failure. Regarding wear resistance there was no statistically significant difference between them. CONCLUSION: ACTIVA™ bioactive restorative material seems promising bioactive restorative materials. Clinical trials are recommended to compare clinical performance of ACTIVA™ with the other restorative materials.

scholarly journals Effect of cpp-acp on the bond strength of silorane and methacrylate based restorative systems

2013 ◽  
Vol 1 (1) ◽  
pp. 64
Author(s):  
Bruno de Castro Ferreira Barreto ◽  
Anderson Catelan ◽  
Marina Baptista Aleixo ◽  
Gisele Rodrigues Silva ◽  
Tathy Aparecida Xavier ◽  
...  
Keyword(s):  
Bond Strength ◽  
Hybrid Composites ◽  
Resin Composite ◽  
Testing Machine ◽  
Adhesive Systems ◽  
Universal Testing ◽  
Significant Difference ◽  
S Matrix ◽  
Casein Phosphopeptide ◽  
Microshear Bond Strength

This study evaluated the influence of the previous application of casein phosphopeptide amorphous calcium phosphate (CPP-ACP) on the bond strength of two restorative systems to dentin. Self-etching adhesive systems Clearfil SE Bond (Kuraray) and FiltekTM LS System Adhesive (3M ESPE) were used in combination with two micro-hybrid composites FiltekTM Z250 (3M ESPE) and FiltekTM LS (3M ESPE), respectively. Twenty-eight sound human third molars had the occlusal surface worn until the total exposure of dentin and were randomly divided into 4 groups (n = 7): G1 (Clearfil + Z250), G2 (CPP-ACP + Clearfil + Z250), G3 (LS system) and G4 (CPP-ACP + LS system). The application of the paste containing CPP-ACP was held in the dentin of G2 and G4 prior to adhesive protocol, which followed the manufacturer's recommendations. Two cylinders of a single increment of resin composite were built on each dentin surface using tygon`s matrix with 1.26 mm of diameter x 1 mm high and light-cured with LED Bluephase 16i (Vivadent) apparatus. Microshear bond strength test was conducted in a universal testing machine (EZ Test, Shimadzu) with a speed of 0.5 mm/min. The data were subjected to two-way ANOVA test with a significance of 5%. There was no significant difference on bond strength between restorative systems with or without the previous use of a CPP-ACP paste. It was concluded that the application of CPP-ACP in the dentin prior to adhesive protocol did not influence the bond strength of the restorative systems tested.

scholarly journals Effect of chitosan nanoparticles on microtensile bond strength of resin composite to dentin: an in vitro study

2020 ◽  
Vol 23 (2) ◽  
Author(s):  
Amr Mohsen Mohamed ◽  
Sameh Mahoud Nabih ◽  
Mohamed Ahmed Wakwak
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Testing Machine ◽  
Chitosan Nanoparticles ◽  
Tooth Surface ◽  
Control Group ◽  
Microtensile Bond Strength ◽  
Significant Difference ◽  
Self Etch

Objective: The purpose of this study was to evaluate the effect of chitosan nanoparticles on microtensile bond strength of resin composite to dentin using self etch adhesive after aging. Material and Methods: A total number of 90 freshly extracted, sound human molar teeth. Flat tooth surface was gained after cut of the occlusal surface. Three main groups according to pretreatment of dentin before adhesive application; 0.2 % chitosan, 2.5 % chitosan and no treatment control group. Universal self etch adhesive were applied according to manufacture instruction and 4 mm of Feltik Z250 xt composite. Storage of specimens for 1 day, 3 months and 6 months in 37O C distilled water. After that, the tooth was sectioned to beams of 1 mm x8 mm sticks for microtensile bond strength test using universal testing machine. Scanning electron microscope (SEM) was used to evalute the effect of chitosan nanoparticles on dentin and smear layer. Kruskal-Wallis test was used to compare between the three groups as well as the three aging periods. Dunn’s test was used for pair-wise comparisons. The significance level was set at P ≤ 0.05. Results: chitosan 0.2% is statistically significant increase in bond strength than chitosan 2.5% and control in one day group. Three months chitosan 0.2 % groups have statistically significant increase in bond strength than chitosan 2.5%. It was found in 6 months that control and chitosan 0.2 % have statistically significant increase in bond strength than chitosan 2.5%. There was statistically significant difference found between the three studied groups regarding bond strength at different storage times . Conclusion: Microtensile bond strength was influenced by different chitosan concentration. Different aging periods had no effect on the microtensile bond strength without application of chitosan and with application of 2.5% chitosan concentration.KEYWORDSChitosan nanoparticles; Microtensile bond strength; MMPs.

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