scholarly journals Ceramic Inlays: Effect of Mechanical Cycling and Ceramic Type on Restoration-dentin Bond Strength

2016 ◽  
Vol 41 (4) ◽  
pp. E102-E117 ◽  
Author(s):  
FZ Trindade ◽  
CJ Kleverlaan ◽  
LH da Silva ◽  
AJ Feilzer ◽  
PF Cesar ◽  
...  
Keyword(s):  
Bond Strength ◽  
Failure Mode ◽  
Contact Angles ◽  
Resin Cement ◽  
Ceramic Surface ◽  
Average Roughness ◽  
Cement Interface ◽  
Ceramic Inlays ◽  
Mechanical Cycling ◽  
Maxillary Premolars

SUMMARY This study aimed to evaluate the bond strength between dentin and five different ceramic inlays in permanent maxillary premolars, with and without mechanical cycling. One hundred permanent maxillary premolars were prepared and divided into 10 groups (n=10) according to the ceramic system (IPS e.Max Press; IPS e.Max CAD; Vita PM9; Vita Mark II; and Vita VM7) and the mechanical cycling factor (with and without [100 N, 2 Hz, 1.2×106 cycles]). The inlays were adhesively cemented, and all of the specimens were cut into microbars (1×1 mm, nontrimming method), which were tested under microtensile loading. The failure mode was classified and contact angle, roughness, and microtopographic analyses were performed on each ceramic surface. The mechanical cycling had a significant effect (p=0.0087) on the bond strength between dentin and IPS e.max Press. The Vita Mark II group had the highest bond strength values under both conditions, with mechanical cycling (9.7±1.8 MPa) and without (8.2±1.9 MPa), while IPS e.Max CAD had the lowest values (2.6±1.6 and 2.2±1.4, respectively). The adhesive failure mode at the ceramic/cement interface was the most frequent. Vita Mark II showed the highest value of average roughness. IPS e.max Press and Vita Mark II ceramics presented the lowest contact angles. In conclusion, the composition and manufacturing process of ceramics seem to have an influence on the ceramic surface and resin cement bond strength. Mechanical cycling did not cause significant degradation on the dentin and ceramic bond strength under the configuration used.

Effect of Acid Neutralization and Mechanical Cycling on the Microtensile Bond Strength of Glass-ceramic Inlays

10.2341/08-68 ◽  
2009 ◽  
Vol 34 (2) ◽  
pp. 211-216 ◽  
Author(s):  
G. Saavedra ◽  
E. K. Ariki ◽  
C. D. Federico ◽  
G. Galhano ◽  
S. Zamboni ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Ceramic ◽  
Hydrofluoric Acid ◽  
Clinical Relevance ◽  
Ceramic Surface ◽  
Acid Neutralization ◽  
Microtensile Bond Strength ◽  
Ceramic Inlays ◽  
Mechanical Cycling

Clinical Relevance Acid neutralization of the ceramic surface etched with hydrofluoric acid appears to be unnecessary.

scholarly journals Effect of Fiber Post-Resin Matrix Composition on Bond Strength of Post-Cement Interface

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Ibtisam O. M. Alnaqbi ◽  
Haitham Elbishari ◽  
Emad S. Elsubeihi
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
Matrix Composition ◽  
Resin Matrix ◽  
Fiber Post ◽  
Cement Interface ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Push Out

Objective. To evaluate the influence of 3 different post-resin matrix systems cemented with dual-cure resin cement in simulated root canals made of PMMA acrylic sheet. Methods. 3 types of fiber posts (n = 60) with different resin matrixes divided into 3 groups: group 1 cross-linked FRC Postec Plus post (n = 20), group 2 cross-linked Rely X post (n = 20), and group 3 Interpenetrated IPN Everstick post (n = 20). All posts were cemented using Multilink Automix dual-cure cement. Posts were cemented into acrylic blocks in order to purely test the strength of cement-post interface. After one week storage at 37°C, two sections of 1 mm thickness from middle-third were subjected to micro-push-out test at crosshead speed 0.5 mm/min. Results. The data were analyzed using one-way analysis of variance (ANOVA). The variable fiber post-matrix system was found to significantly affect the push-out bond strength (p<0.001). Group 2 exhibited that the highest mean push-out bond strength was (5.36 + 2.3 MPa), and group 3 showed the lowest mean push-out (0.41 + 0.4 MPa). There was significant difference among the groups regarding the failure mode as chi-square test revealed (p<0.001). Conclusion. Prefabricated cross-linked posts with epoxy-based matrix demonstrated higher bond strength than prefabricated cross-linked posts with Bis-GMA-based matrix and posts with semi-IPN matrix when luted with dimethacrylate-based dual-cured resin cement.

scholarly journals Effect of Ceramic Surface Treatment and Adhesive Systems on Bond Strength of Metallic Brackets

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Patrapan Juntavee ◽  
Hattanas Kumchai ◽  
Niwut Juntavee ◽  
Dan Nathanson
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Damage Index ◽  
Resin Cement ◽  
Ceramic Surface ◽  
Adhesive Remnant Index ◽  
Chi Squared ◽  
Ceramic Bracket ◽  
Bonding Systems ◽  
Post Hoc

Objective. This study evaluated the effect of ceramic surface treatments on bond strength of metal brackets to machinable ceramics and veneering porcelain using different adhesive resins. Materials and methods. Machined ceramic specimens (10 × 10 × 2 mm) were prepared from Vitablocs mark II (Vita) and IPS e.max® CAD (Ivoclar). Layered porcelain fused to metal (IPS d.Sign®, Ivoclar) was used to fabricate PFM specimens (n = 60/group). Half of specimens were etched (9.6% HF, 15 sec), and the rest were nonetched. Three resin bonding systems were used for attaching metal brackets (Victory series™ APC II, 3M) to each group (n = 10): Transbond™ XT (3M), Light Bond™ (Reliance), or Blugloo™ (Ormco), all cured with LED curing unit (Bluephase G1600, Vivadent) for 50 s each. Specimens were immersed in deionized water at 37°C for 24 hours prior to shear bond testing (Instron) at crosshead speed of 0.5 mm/min. Debond surface of ceramic and bracket base was examined for failure mode (FM), Ceramic Damage Index (CDI), and Adhesive Remnant Index (ARI). ANOVA and post hoc multiple comparisons were used to analyze the differences in bond strength. The chi-squared test was used to determine significance effect of FM, CDI, and ARI. Results. Significant differences in shear bond strength among group were found (p≤0.05) related to ceramic, surface treatment, and resin cement. Conclusion. Bond strength of bracket to ceramic is affected by type of ceramic, resin cement, and ceramic surface conditioning. Etching ceramic surface enhanced ceramic-bracket bond strength. However, bond strengths in nontreated ceramic surface groups were still higher than bond strength required for bonding in orthodontic treatment.

scholarly journals Effect of Ceramic Etching Protocols on Resin Bond Strength to a Feldspar Ceramic

2015 ◽  
Vol 40 (2) ◽  
pp. E40-E46 ◽  
Author(s):  
MA Bottino ◽  
A Snellaert ◽  
CD Bergoli ◽  
M Özcan ◽  
MC Bottino ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
Acid Etching ◽  
Ceramic Surface ◽  
Mean Values ◽  
Force Microscopy ◽  
Ceramic Surfaces ◽  
Aging Conditions ◽  
Ceramic Blocks ◽  
Microtensile Test

SUMMARY This study sought to evaluate the resin microtensile bond strength (MTBS) stability of a leucite-reinforced ceramic after different ceramic etching protocols. The microtensile test had 40 ceramic blocks (5×5×6 mm) assigned to five groups (n=8), in accordance with the following surface etching protocols: NE nonetched (control); 9HF: hydrofluoric (HF) acid etching (9%HF)+wash/dry; 4HF: 4%HF+wash/dry; 5HF: 5%HF+wash/dry; and 5HF+N: 5%HF+neutralizer+wash/dry+ultrasonic-cleaning. Etched ceramic surfaces were treated with a silane agent. Next, resin cement blocks were built on the prepared ceramic surface and stored for 24 hours in distilled water at 37°C. The specimens were then sectioned to obtain microtensile beams (32/block), which were randomly assigned to the following conditions, nonaged (immediate test) and aged (water storage for 150 days plus 12,000 thermal cycles), before the microtensile test. Bond strength data were submitted to one-way analysis of variance and Tukey test (α=0.05). Additional ceramic samples were subjected to the different ceramic etching protocols and evaluated using a scanning electron microscope (n=2) and atomic force microscopy (n=2). Aging led to a statistically significant decrease in the MTBS for all groups, except the untreated one (NE). Among the groups submitted to the same aging conditions, the untreated (NE) revealed inferior MTBS values compared to the 9HF and 4HF groups. The 5HF and 5HF+N groups had intermediate mean values, being statistically similar to the higher values presented by the 9HF and 4HF groups and to the lower value associated with the NE group. The neutralization procedure did not enhance the ceramic/resin cement bond strength. HF acid etching is a crucial step in resin/ceramic bonding.

Effect of Feldspathic Ceramic Surface Treatments on Bond Strength to Resin Cement

2007 ◽  
Vol 25 (4) ◽  
pp. 291-296 ◽  
Author(s):  
Peter Shiu ◽  
Wanessa Christine De Souza-Zaroni ◽  
Carlos de Paula Eduardo ◽  
Michel Nicolau Youssef
Keyword(s):  
Bond Strength ◽  
Surface Treatments ◽  
Resin Cement ◽  
Ceramic Surface

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.  

scholarly journals Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer

2019 ◽  
Vol 18 ◽  
pp. e191504
Author(s):  
Jean Soares Miranda ◽  
Ronaldo Luís Almeida de Carvalho ◽  
Aline Serrado de Pinho Barcellos ◽  
Rodrigo Othávio de Assunção e Souza ◽  
Estevão Tomomitsu Kimpara ◽  
...  
Keyword(s):  
Bond Strength ◽  
Energy Dispersive Spectrometry ◽  
Tetragonal Zirconia ◽  
Contact Angles ◽  
Resin Cement ◽  
Etching Time ◽  
Universal Adhesive ◽  
Treatment Protocols ◽  
Backscattered Electron ◽  
Made In

Aim: evaluate the influence of etching time with hydrofluoric acid on the bond strength of a Yttrium-stabilized polycrystalline tetragonal zirconia (Y-TZP) ceramic with a superficial glaze layer and a resin cement. Methods: Y-TZP blocks were cut to obtain 40 samples. They were distributed into four groups (n = 10): control treated by sandblasting with silica-coated alumina (RS) and three glazed experimental groups with different etching times: GS20s, GS60s and GS100s. Cementation was done with a universal adhesive and a resin cement. Two cement cylinders were made in each block. After thermocycling, the shear bond test was performed. Two extra samples of each group were made to obtain profilometry, scanning electron microscopy, mapping and backscattered electron detector images. Energy dispersive spectrometry and goniometry were also performed. Results: Kruskal-Wallis and Dunn tests demonstrated bond strength differences only between the RS (22.10MPa) and the GS groups (GS20s: 8,10Mpa; GS60s: 10.49MPa; GS100s: 7.53MPa) (p = 0.001), but there was no difference among the experimental groups (p > 0.05). The contact angles were 55.33º (RS); 70.78° (GS100s); 48.20º (GS60s) and 28.73º (GS20s). ANOVA and Tukey test demonstrated similar wettability of RS to GS60s and GS100s (p > 0.05), but all the experimental groups were statistically different between them (p < 0.001). Qualitative image analysis revealed an irregular glaze distribution after etching. The thickness of the remaining glaze layer measured by profilometry was 5±1μm (GS20S), 4±1μm (GS60S) and 3±1μm (GS100s). Conclusion: The etching time of glazed zirconia did not influence the adhesive strength of the ceramic to the resin cement.

scholarly journals The effect of surface treatment and thermocycling on the shear bond strength of porcelain laminate veneering material cemented with different luting cements

2019 ◽  
Vol 18 ◽  
pp. e191581
Author(s):  
Fawaz Alqahtani ◽  
Mohammed Alkhurays
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Hydrofluoric Acid ◽  
Shear Bond Strength ◽  
Surface Treatments ◽  
Resin Cement ◽  
Ceramic Surface ◽  
Resin Cements ◽  
Significant Difference ◽  
Acid Etch

Aim: The study aimed to evaluate and compare the effect of different surface treatment and thermocycling on the shear bond strength (SBS) of different dual-/light-cure cements bonding porcelain laminate veneers (PLV). Methods: One hundred and twenty A2 shade lithium disilicate discs were divided into three groups based on the resin cement used and on the pretreatment received and then divided into two subgroups: thermocycling and control. The surface treatment were either micro-etched with aluminium trioxide and 10% hydrofluoric acid or etched with 10% hydrofluoric acid only before cementation. Three dual-cure (Variolink Esthetic (I), RelyX Ultimate (II), and RelyX Unicem (III)) and three light-cure (Variolink Veneer (IV), Variolink Esthetic (V), RelyX Veneer (VI)) resin cements were used for cementation. The SBS of the samples was evaluated and analysed using three -way ANOVA with statistical significant set at α=0.05. Results: For all resin cements tested with different surface treatments, there was a statistically significant difference within resin cements per surface treatment (p<0.05). The shear bond strength in the micro-etch group was significant higher than the acid-etch group (p<0.05) There was statistically significant interaction observed between the surface treatment and thermocycling (p<0.05) as well as the cement and thermocycling(p<0.05). It was observed that the reduction in shear bond strength after thermocycling was more pronounced in the acid etch subgroup as compared to the microetch subgroup. However, the interaction between the three factors: surface treatments, thermocycling and resin cements did not demonstrate statistically significant differences between and within groups (p=0.087). Conclusions: Within the limitations of the present study, it acan be concluded that Dual cure resin cements showed a higher Shear bond strength as compared to light cure resin cements. Thermal cycling significantly decreased the shear bond strength for both ceramic surface treatments. After thermocycling, the specimens with 10% HF surface treatment showed lower shear bond strength values when compared to those treated by sandblasting with Al2O3 particles.

scholarly journals Influence of drying time of adhesive systems on the bond strength between resin cement and feldspathic ceramic

2016 ◽  
Vol 19 (1) ◽  
pp. 88
Author(s):  
Sabrina Alves Feitosa ◽  
Isabela Gomes Moura ◽  
Pedro Henrique Corazza ◽  
Cesar Dalmolin Bergolli ◽  
Clóvis Pagani ◽  
...  
Keyword(s):  
Bond Strength ◽  
Adhesive System ◽  
Resin Cement ◽  
Ceramic Surface ◽  
Drying Time ◽  
Ceramic Block ◽  
Significant Difference ◽  
Before And After ◽  
Cad Cam ◽  
Ceramic Blocks

<p><strong>O</strong><span lang="en-US"><strong>bjective: </strong></span><span lang="en-US">This study evaluated the effect of drying times of two total-etch &amp; rinse adhesives on the resin bond strength to a feldsphatic ceramic, before and after aging. </span><span lang="en-US"><strong>Material and Methods: </strong></span><span lang="en-US">Feldsphatic-ceramic CAD-CAM bars were cut into blocks (12×10×4 mm) with a cutting machine (N = 32). </span><span lang="en-US">Impressions were made of each ceramic block with silicone putty material and the negative space was filled with a composite resin.</span><span lang="en-US"> The bonding ceramic surface was etched with hydrofluoric acid, silanized, and the adhesive system (SB- Single Bond 2, 3M-ESPE; or PB- Prime &amp; Bond NT, Dentsply) was applied. The samples were dried at different times (5, 10 and 15 s) before the cementation. The resin and ceramic blocks were cemented by a dual cure resin cement. All samples were stored in distilled water at 37 °C for 24 h. For the μ-TBS test, the samples were sliced into microbars. Half of the bars of each block was tested after 24 h and, the other bars </span><span lang="en-US">were submitted to thermocycling (12,000×) and water storage (150 d)</span><span lang="en-US">. For the 24 h groups, the longer drying time increased (p &lt; 0.05) the bond strength of SB (water/alcohol adhesive), while reduced (p &lt; 0.05) for the PB group (acetone based adhesive). </span><span lang="en-US"><strong>Results: </strong></span><span lang="en-US">For the aged groups, the bond strength for the different drying times had no significant difference, for the both adhesives. </span><span lang="en-US"><strong>Conclusion:</strong></span><span lang="en-US"> Longer drying times increased the bond strength values of SB. Smaller drying times increased the bond strength values of PB. The aging protocol influenced the bond strength of SB groups.</span></p><p class="western"> </p><p class="western" lang="pt-BR"><span><span><span lang="en-US"><strong>Keywords:</strong></span></span></span><span><span><span lang="en-US"><span> Microtensile; Adhesion; Feldspar ceramic; Drying time; Adhesive system.</span></span></span></span></p>

scholarly journals Effect of Luting Cement Film Thickness on the Pull-Out Bond Strength of Endodontic Post Systems

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3082
Author(s):  
Khalil Aleisa ◽  
Syed Rashid Habib ◽  
Abdul Sadekh Ansari ◽  
Ragad Altayyar ◽  
Shahad Alharbi ◽  
...  
Keyword(s):  
Bond Strength ◽  
Film Thickness ◽  
Testing Machine ◽  
Resin Cement ◽  
Cement Interface ◽  
Pull Out ◽  
Modes Of Failure ◽  
Fiber Posts ◽  
Luting Cement ◽  
Group A

Optimal bond strength between the prefabricated post/dowel to the surrounding dentin is essential. The present study aimed to analyze and compare the effect of three different cement film thicknesses on the pull-out bond strength of three different prefabricated post systems. Extracted natural teeth (N = 90) with similar root dimensions were acquired. Teeth were mounted in resin blocks, endodontically treated, sectioned at cemento-enamel junction, divided into three groups (A: Parapost Fiber Lux plus; B: 3M ESPE Relyx fiber post; and C: Parapost XP), and stored. Uniform post spaces were prepared for the groups (A and C: Length = 8 mm, Width = 1.5 mm; B: Length = 8 mm, Width = 1.6 mm). Each group (N = 30) was further subdivided into three subgroups (n = 10) based on the size (4, 5, and 6) of the post and cemented with resin cement (MultiLink-N, Ivoclar Vivadent). After thermocycling, the specimens were subjected to a pull-out test using a universal testing machine, and tensile force was recorded (MPa). Digital microscopic evaluations were performed for modes of failure. ANOVA and Tukey-HSD tests were used for statistics. Significant differences were observed for each tested material (p = 0.000). The lowest and highest bond strength values were recorded for Group C (Titanium post) and Group A (000), respectively. Multiple comparisons showed significance (p < 0.05) among all the groups, except for space 1 and space 2 (p = 0.316) for Group A. Most of the failures occurred within the cement-dentin and post-cement interface (Adhesive failures, 73.5%). An increase in the luting cement film thickness results in the decrease in pull-out bond strength of prefabricated posts luted with resin cement, irrespective of the type/material/shape of the post. The serrated fiber posts showed the highest pull-out bond strength compared to the smooth surfaced fiber posts or serrated metal posts. Increased pull-out bond strengths were observed when appropriate post space was created with the same sized drill as the post size.

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