scholarly journals Effect of Silane-Containing Universal Adhesives on the Bonding Strength of Lithium Disilicate

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3976
Author(s):  
Yu-Ri Kim ◽  
Jae-Hoon Kim ◽  
Sung-Ae Son ◽  
Jeong-Kil Park
Keyword(s):  
Bonding Strength ◽  
Failure Modes ◽  
Lithium Disilicate ◽  
Resin Cement ◽  
Silane Treatment ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Universal Adhesives ◽  
Loose Bonding ◽  
Test Failure

The purpose of this study was to investigate the effect of silane-containing universal adhesives on the bonding strength of lithium disilicate. Two-hundred-and-forty lithium disilicate blocks were divided into 16 groups according to the following surface treatments: hydrofluoric acid (HF)-treated or not, silane-treated or not, and the type of universal adhesive used (All-Bond Universal (ABU); Prime & bond (PB); Clearfil Universal Bond (CU); Single bond Universal (SBU)). After surface treatment, resin discs were bonded to each lithium disilicate using dual-cure resin cement. Bonded specimens were stored in distilled water for 24 h and then subjected to microtensile bond strength (μTBS) test. Failure modes were examined under stereomicroscope. Microscopic observation of bonded interfaces was analyzed using scanning electron microscopy. The μTBS data were statistically analyzed. Regardless of silane treatment, all groups treated with HF showed higher bonding strengths compared to those that were not treated with HF (p < 0.05). In groups treated with HF, the bonding strength increased after silane application (p < 0.05) except PB and CU (p > 0.05). Adhesive failures were dominant in all groups, but some mixed failures were observed in ABU treated with HF and silane. While most of the specimens that were not treated with silane after HF application only showed loose bonding between the ceramic and resin cement due to partial gaps, the specimens treated with silane application after HF showed a tight ceramic–resin interface. In conclusion, the silane in universal adhesives did not effectively improve the bonding strength between lithium disilicate and resin cement.

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

2017 ◽  
Vol 42 (3) ◽  
pp. 284-296 ◽  
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&lt;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&lt;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.

scholarly journals Influence of Etching Protocol and Silane Treatment with a Universal Adhesive on Lithium Disilicate Bond Strength

2015 ◽  
Vol 40 (4) ◽  
pp. 372-378 ◽  
Author(s):  
VK Kalavacharla ◽  
NC Lawson ◽  
LC Ramp ◽  
JO Burgess
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
Lithium Disilicate ◽  
Ceramic Surface ◽  
Silane Treatment ◽  
Universal Adhesive ◽  
Plastic Tube ◽  
C 50 ◽  
Post Hoc

SUMMARY Objectives To measure the effects of hydrofluoric acid (HF) etching and silane prior to the application of a universal adhesive on the bond strength between lithium disilicate and a resin. Methods and Materials Sixty blocks of lithium disilicate (e.max CAD, Ivoclar Vivadent) were sectioned into coupons and polished. Specimens were divided into six groups (n=10) based on surface pretreatments, as follows: 1) no treatment (control); 2) 5% HF etch for 20 seconds (5HF); 3) 9.5% HF etch for 60 seconds (9.5HF); 4) silane with no HF (S); 5) 5% HF for 20 seconds + silane (5HFS); and 6) 9.5% HF for 60 seconds + silane (9.5HFS). All etching was followed by rinsing, and all silane was applied in one coat for 20 seconds and then dried. The universal adhesive (Scotchbond Universal, 3M ESPE) was applied onto the pretreated ceramic surface, air thinned, and light cured for 10 seconds. A 1.5-mm-diameter plastic tube filled with Z100 composite (3M ESPE) was applied over the bonded ceramic surface and light cured for 20 seconds on all four sides. The specimens were thermocycled for 10,000 cycles (5°C-50°C/15 s dwell time). Specimens were loaded until failure using a universal testing machine at a crosshead speed of 1 mm/min. The peak failure load was used to calculate the shear bond strength. Scanning electron microscopy images were taken of representative e.max specimens from each group. Results A two-way analysis of variance (ANOVA) determined that there were significant differences between HF etching, silane treatment, and the interaction between HF and silane treatment (p&lt;0.01). Silane treatment provided higher shear bond strength regardless of the use or concentration of the HF etchant. Individual one-way ANOVA and Tukey post hoc analyses were performed for each silane group. Shear bond strength values for each etch time were significantly different (p&lt;0.01) and could be divided into significantly different groups based on silane treatment: no silane treatment: 0 HF &lt; 5% HF &lt; 9.5% HF; and RelyX silane treatment: 0 HF &lt; 5% HF and 9.5% HF. Conclusions Both HF and silane treatment significantly improved the bond strength between resin and lithium disilicate when used with a universal adhesive.

scholarly journals Effect of Different Application Techniques of Universal Bonding System on Microtensile Bond Strength of Bulk-Fill Composites to Primary and Permanent Dentin

2020 ◽  
Author(s):  
Masoud Fallahinejad Ghajari ◽  
Mahsa Sheikholeslamian ◽  
Amir Ghasemi ◽  
Leila Simaei
Keyword(s):  
Bond Strength ◽  
Failure Modes ◽  
In Vitro Study ◽  
Permanent Teeth ◽  
Microtensile Bond Strength ◽  
Universal Adhesive ◽  
Bonding System ◽  
The Mean ◽  
Self Etch

Objectives: This study aimed to determine the microtensile bond strength (μTBS) of a bulk-fill composite to permanent and primary coronal dentin using a universal adhesive in self-etch and total-etch modes. Materials and Methods: This in-vitro study was performed on 52 occlusal dentinal surfaces of human primary and permanent teeth. The crowns were cut to the gingival level. The 48 prepared dentin sections were randomly assigned to the following groups (n=13): A: Primary/Total-etch, B: Primary/Self-etch, C: Permanent/Total-etch, and D: Permanent/Self-etch. In groups A and C, after etching for 15 seconds, two layers of a universal bonding (Futurabond U) were applied and cured for 10 seconds. All samples were filled with a bulk-fill composite (x-trafil; VOCO) and cured for 40 seconds. The samples were cut to a bar-shaped dentin block with the dimensions of 1×1×1 mm3, and after 10,000 thermocycles, the μTBS test was accomplished at a crosshead speed of 1 mm/minute. The mean and standard deviation (SD) of μTBS were calculated, and the data were analyzed using two-way analysis of variance (ANOVA) and Fisher's exact test. Results: The mean μTBS was as follows: A: 15.03±2.0279, B: 11.11±2.4423, C: 23.50±4.8165, and D: 16.26±6.3200 MPa. Futurabond U showed a higher μTBS in the total-etch mode (P<0.001). The permanent teeth had greater μTBS than the primary teeth (P<0.001). Similar percentages of failure modes were observed in the total-etch groups but in the self-etch groups, most failures were in the form of adhesive and mixed. Conclusion: Greater μTBS was observed in the permanent teeth with the total-etch technique.

scholarly journals Bond Strength Between Resin Cement to High-Translucency Zirconia Following Sandblasting And Non-Thermal Plasma Treatment

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Daniele Oliveira da Silva ◽  
Tabata Prado Sato ◽  
Marina Bacelar Silva ◽  
Letícia Grilo de Souza ◽  
Eduardo Shigueyuki Uemura ◽  
...  
Keyword(s):  
Bond Strength ◽  
Thermal Plasma ◽  
Lithium Disilicate ◽  
Surface Treatments ◽  
Resin Cement ◽  
Zirconia Ceramic ◽  
Control Group ◽  
Universal Adhesive ◽  
Non Thermal Plasma ◽  
Silica Oxide

Objective: The aim of this study was to compare the bond strength of High-Translucency zirconia (HT) and lithium disilicate dental ceramics, under different surface treatments. Material And Methods: For this, ceramics were divided into groups: Control Group (C) (n = 5), lithium disilicate sheets, conditioned with 10% hydrofluoric acid, followed by application of 37% phosphoric acid, silane and universal adhesive application; Group HTAI (n = 5), HT zirconia sheets were blasted with silica oxide, followed by the application of universal adhesive; Group HTPAI (n = 5), HT zirconia sheets were blasted with silica oxide, followed by the application of non-thermal plasma and universal adhesive and the HTP Group (n = 5), HT zirconia received only the application of non-thermal argon plasma. Subsequently, the specimens of each group were subjected to a cementation process with resin cement, obtaining cylinders. After 24 h of storage, in distilled water, at 37°C, the specimens were subjected to a mechanical micro-shear test. The data obtained were submitted to ANOVA One-way followed by the Tukey test (5%). Results: The HTP Group was excluded from the statistical analysis, as adhesions failed within the storage period. In addition, it was not possible to verify a statistical difference between the control group C and the experimental groups HTAI and HTPAI. Conclusion: The results showed that the applicability of high translucency zirconia can potentially be compared to the lithium disilicate bond strength, when submitted to the same surface treatments, except for the plasma application, which alone was not effective. KEYWORDS Lithium disilicate; Nonthermal plasma; Zirconia ceramic.

scholarly journals Surface treatment and adhesion approaches on polymer-infiltrated ceramic network

2021 ◽  
Vol 20 ◽  
pp. e211670
Author(s):  
Michele Mirian May ◽  
Camila da Silva Rodrigues ◽  
Juliane Bortolotto Da Rosa ◽  
Júlia Persio Herrmann ◽  
Liliana Gressler May
Keyword(s):  
Contact Angle ◽  
Bond Strength ◽  
Hydrofluoric Acid ◽  
Failure Modes ◽  
Contact Angles ◽  
Resin Cement ◽  
Acid Etching ◽  
Single Bond ◽  
Universal Adhesive ◽  
Angle Data

Aim: To evaluate the effect of different surface treatments and adhesive approaches on the microshear bond strength of resin cement to a polymer-infiltrated ceramic network (PICN). Methods: PICN blocks were randomly assigned into 9 groups (n=10): CTRL: no treatment; HF: 5% hydrofluoric acid etching; HF-S: HF + silane; HF-S-A: HF-S + adhesive (Adper Single Bond 2); HF-UA: HF + universal adhesive (Single Bond Universal); SB: sandblasting with 50 μm Al2O3 particles; SB-S: SB + silane; SB-S-A: SB-S + adhesive; SB-UA: SB + universal adhesive. Resin cement microcylinders (Ø = 0.96 mm; height = 1 mm) (RelyX Ultimate) were built upon the PICN surface after roughness and contact angle measurements. Next, microshear bonding tests (μSBS) were performed (0.5 mm/min) after water storage (37ºC, 90 days) and thermocycling (12,000 cycles; 5ºC-55ºC). Failure modes were observed under stereomicroscope. Bond strength data were analyzed by two-way ANOVA/Tukey’s test and t-tests. Kruskal-Wallis/Dunn’s tests were conducted for roughness and contact angle data (α = 0.05). Results: A rougher surface and lower contact angles were observed for Sandblasting. HF-S (18.54 ± 2.03 MPa), SB-S (19.00 ± 1.66 MPa) and SB-UA (18.07 ± 2.36 MPa) provided the highest bond strength values, followed by the other treated groups. The CTRL group resulted in lower bond strength (7.18 ± 2.34 MPa). Conclusion: Hydrofluoric acid etching followed by silane application and sandblasting followed by silane or universal adhesive are useful clinical steps to enhance bonding to PICN. Adhesive applications after HF etching have no advantages in bonding to PICN.  

Effect of Silanization on Microtensile Bond Strength of Different Resin Cements to a Lithium Disilicate Glass Ceramic

2016 ◽  
Vol 17 (2) ◽  
pp. 149-153 ◽  
Author(s):  
Cristina Parise Gré ◽  
Renan C de Ré Silveira ◽  
Shizuma Shibata ◽  
Carlo TR Lago ◽  
Luiz CC Vieira
Keyword(s):  
Bond Strength ◽  
Glass Ceramic ◽  
Hydrofluoric Acid ◽  
Lithium Disilicate ◽  
Resin Cement ◽  
Microtensile Bond Strength ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Silane Coupling ◽  
Adhesive Resin Cement

ABSTRACT Aim This study evaluated the influence of a silane-coupling agent on the bond strength of a self-adhesive cement and a conventional resin cement to a lithium disilicate glass ceramic. Materials and methods A total of eight ceramic blocks were fabricated and divided into four groups (n = 2). In groups 1 and 3, ceramic surfaces were etched with hydrofluoric acid 10% for 20 seconds, rinsed for 30 seconds, and air-dried. One layer of a silane agent was applied onto all ceramic specimens and air-dried for 30 seconds. In groups 2 and 4, ceramic surfaces were etched with hydrofluoric acid, rinsed, and air-dried without application of the silane-coupling agent. The ceramic blocks were bonded to a block of composite with a self-adhesive resin cement or with a conventional resin cement, according to the manufacturer's instructions. After 24 hours in distilled water at 37°C, the specimens were sectioned perpendicular to the bonding interface area to obtain beams with a bonding area of 0.8 mm2 and submitted to a microtensile bond strength test at a crosshead speed of 0.5 mm/min. Data were statistically analyzed with one-way analysis of variance and the Games–Howell post hoc test (p = 0.05). Fractured specimens were examined under optical microscopy at 40× magnification. Results Silanization resulted in higher microtensile bond strength compared to groups without silane. No significant differences were found between the conventional resin cement and the self-adhesive resin cement with silane agent (p = 0.983), and without silane agent (p = 0.877). Conclusion Silanization appears to be crucial for resin bonding to a lithium disilicate-based ceramic, regardless of the resin cement used. The self-adhesive resin cement performed as well as the conventional resin cement. Clinical significance Applying one layer of a silane-coupling agent after etching the ceramic surface with hydrofluoric acid 10% enhanced the bond strength between resin cements and a glass ceramic. How to cite this article Gré CP, de Ré Silveira RC, Shibata S, Lago CTR, Vieira LCC. Effect of Silanization on Microtensile Bond Strength of Different Resin Cements to a Lithium Disilicate Glass Ceramic. J Contemp Dent Pract 2016;17(2):149-153.

scholarly journals Enhanced bonding strength between lithium disilicate ceramics and resin cement by multiple surface treatments after thermal cycling

PLoS ONE ◽  
2019 ◽  
Vol 14 (7) ◽  
pp. e0220466 ◽  
Author(s):  
Rui Li ◽  
Shi Qing Ma ◽  
Cheng Cheng Zang ◽  
Wen Yi Zhang ◽  
Zi Hao Liu ◽  
...  
Keyword(s):  
Thermal Cycling ◽  
Bonding Strength ◽  
Lithium Disilicate ◽  
Surface Treatments ◽  
Resin Cement

scholarly journals Evaluation of Restorative Techniques for Vertically Fractured Roots

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2099
Author(s):  
Kota Shimizu ◽  
Tomonori Satoh ◽  
Koichi Shinkai
Keyword(s):  
Failure Modes ◽  
Ethylenediaminetetraacetic Acid ◽  
Ferric Chloride Solution ◽  
Surface Treatments ◽  
Resin Cement ◽  
Tooth Surface ◽  
Phosphate Solution ◽  
Microtensile Bond Strength ◽  
Adhesive Resin ◽  
Bonding Durability

The purpose of this study was to examine the effects of combining specific adhesive materials and various surface treatments on bonding durability and microleakage of vertically fractured roots. Adhesive models were prepared using bovine lower incisors. The experiment included the following five groups: SB-G group (control) (10% citric acid with 3% ferric chloride solution (10-3 solution) + an adhesive resin cement (4-META/MMA-TBB; Super-Bond®)), EC group (self-cure bonding agent (UB) + core composite resin (EC)), EC-G group (10-3 solution + UB + EC), EC-P group (40% phosphate solution + UB + EC), and EC-E group (18% ethylenediaminetetraacetic acid (EDTA) solution + UB + EC). After applying a load of 50,000 cycles, microleakage, microtensile bond strength (μTBS), and failure modes were examined. Microleakage of the EC, EC-G, and EC-E groups was significantly lower than that of the EC-P group. The μTBS of the EC-G group was significantly higher than that of the other groups. All EC groups showed that mixed (cohesive and adhesive) and adhesive failures were the most prevalent types of failure modes. The EC-G group showed the highest bonding durability and the lowest microleakage results, which indicates a possible alternative to current adhesive and tooth surface treatments.

Effects of Surface Treatments, Thermocycling, and Cyclic Loading on the Bond Strength of a Resin Cement Bonded to a Lithium Disilicate Glass Ceramic

2013 ◽  
Vol 38 (2) ◽  
pp. 208-217 ◽  
Author(s):  
GB Guarda ◽  
AB Correr ◽  
LS Gonçalves ◽  
AR Costa ◽  
GA Borges ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Ceramic ◽  
Hydrofluoric Acid ◽  
Lithium Disilicate ◽  
Surface Treatments ◽  
Resin Cement ◽  
Control Group ◽  
Ceramic Surface ◽  
Microtensile Bond Strength ◽  
Ceramic Blocks

SUMMARY Objectives The aim of this present study was to investigate the effect of two surface treatments, fatigue and thermocycling, on the microtensile bond strength of a newly introduced lithium disilicate glass ceramic (IPS e.max Press, Ivoclar Vivadent) and a dual-cured resin cement. Methods A total of 18 ceramic blocks (10 mm long × 7 mm wide × 3.0 mm thick) were fabricated and divided into six groups (n=3): groups 1, 2, and 3—air particle abraded for five seconds with 50-μm aluminum oxide particles; groups 4, 5, and 6—acid etched with 10% hydrofluoric acid for 20 seconds. A silane coupling agent was applied onto all specimens and allowed to dry for five seconds, and the ceramic blocks were bonded to a block of composite Tetric N-Ceram (Ivoclar Vivadent) with RelyX ARC (3M ESPE) resin cement and placed under a 500-g static load for two minutes. The cement excess was removed with a disposable microbrush, and four periods of light activation for 40 seconds each were performed at right angles using an LED curing unit (UltraLume LED 5, Ultradent) with a final 40 second light exposure from the top surface. All of the specimens were stored in distilled water at 37°C for 24 hours. Groups 2 and 5 were submitted to 3,000 thermal cycles between 5°C and 55°C, and groups 3 and 6 were submitted to a fatigue test of 100,000 cycles at 2 Hz. Specimens were sectioned perpendicular to the bonding area to obtain beams with a cross-sectional area of 1 mm2 (30 beams per group) and submitted to a microtensile bond strength test in a testing machine (EZ Test) at a crosshead speed of 0.5 mm/min. Data were submitted to analysis of variance and Tukey post hoc test (p≤0.05). Results The microtensile bond strength values (MPa) were 26.9 ± 6.9, 22.2 ± 7.8, and 21.2 ± 9.1 for groups 1–3 and 35.0 ± 9.6, 24.3 ± 8.9, and 23.9 ± 6.3 for groups 4–6. For the control group, fatigue testing and thermocycling produced a predominance of adhesive failures. Fatigue and thermocycling significantly decreased the microtensile bond strength for both ceramic surface treatments when compared with the control groups. Etching with 10% hydrofluoric acid significantly increased the microtensile bond strength for the control group.

scholarly journals Impact of simplified chemical treatment of semi-direct restorations cemented with self-adhesive resin cement on dentin bond durability and nanoleakage

2020 ◽  
Vol 9 (11) ◽  
pp. e619119525
Author(s):  
Joselúcia da Nóbrega Dias ◽  
Andressa Eveline de Lima Ribeiro ◽  
Ana Margarida dos Santos Melo ◽  
Boniek Castillo Dutra Borges ◽  
Isauremi Assunção
Keyword(s):  
Bond Strength ◽  
Chemical Treatment ◽  
Failure Modes ◽  
Surface Treatments ◽  
Resin Cement ◽  
Universal Adhesive ◽  
Adhesive Resin ◽  
Chemical Surface ◽  
Adhesive Resin Cement ◽  
Bond Durability

The present study aimed to evaluate the impact of different chemical surface treatments and aging on dentin bond strength and nanoleakage of semi-direct restorations cemented with self-adhesive resin cement. One hundred and sixty semi-direct composite restorations (4.8 x 2.8 x 4.0 mm) were produced to fill dentin preparations in bovine tooth, and the specimens were divided into 8 groups according to chemical treatment [No treatment, Silane (S), Scotchbond™ Universal adhesive (SBU), and S+SBU], and aging time in water [24 h and 6 months]. Push-out bond strength (PBS) was measured through a universal testing machine (1.0 mm/min), failure modes by a dissecting microscope, and nanoleakage by scanning electron microscopy. Two-way ANOVA and Tukey's post-hoc (p<0.05) test were used to analyze PBS data, whilst failure modes and nanoleakage were analyzed descriptively. The bond durability was influenced by different chemical surface treatments after 6 months of aging in distilled water, with the best performance for the group that uses silane associated with the universal adhesive. Nanoleakage was greater at the dentin-cement interface, from the base of the restorations. However, the infiltration of silver crystals at the cement-resin interface was not influenced by the different chemical treatments applied. The results of the study suggest that self-adhesive cement promotes efficient adhesion to the interface that improves over time without the need for chemical surface treatment or when using SBU, with or without silane.

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