Micro-push-out bond strength and the modes of failure for a fibre-reinforced resin-post system cemented using three adhesive luting cements after cyclic loading

2010 ◽  
Author(s):  
Hai-chiung Liang
Keyword(s):  
Cyclic Loading ◽  
Bond Strength ◽  
Luting Cements ◽  
Modes Of Failure ◽  
Adhesive Luting ◽  
Push Out

Influence of Luting Material Filler Content on Post Cementation

2009 ◽  
Vol 88 (10) ◽  
pp. 951-956 ◽  
Author(s):  
M. Ferrari ◽  
C.A. Carvalho ◽  
C. Goracci ◽  
F. Antoniolli ◽  
A. Mazzoni ◽  
...  
Keyword(s):  
Bond Strength ◽  
Filler Content ◽  
In Vivo Studies ◽  
Case Scenario ◽  
Endodontically Treated Teeth ◽  
Worst Case ◽  
Luting Cements ◽  
Fiber Posts ◽  
Push Out

Luting of fiber posts to intra-radicular dentin represents the worst-case scenario in terms of control of polymerization shrinkage. This study tested the hypothesis that filler content of resin cements does not influence luting of fiber posts to intra-radicular dentin, by assaying polymerization stress, push-out bond strength, and nanoleakage expression. The polymerization stress of experimental cements containing 10%, 30%, 50%, or 70% in filler content was investigated. Post spaces were prepared in endodontically treated teeth, and fiber posts were cemented with the experimental cements. A push-out test was performed, and interfacial nanoleakage expression was analyzed. Results showed that luting cements with higher filler content were related to increased polymerization stress (p < 0.05), decreased push-out bond strength (p < 0.05), and increased interfacial nanoleakage expression (p < 0.05). Conversely, lower-stress luting materials increased bonding of fiber posts to intra-radicular dentin. Further in vivo studies are needed to investigate the long-term clinical performance of these materials.

scholarly journals Evaluation of the Bond Strength and Fracture Resistance of Different Post Systems

2015 ◽  
Vol 16 (10) ◽  
pp. 788-793 ◽  
Author(s):  
Sevinç Aktemur Türker ◽  
Bahar Özçelik ◽  
Zeliha Yilmaz
Keyword(s):  
Bond Strength ◽  
Fracture Resistance ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Resistance Test ◽  
Mandibular Incisor ◽  
Cast Metal ◽  
Adhesive Luting ◽  
Significant Difference ◽  
Push Out

ABSTRACT Aim To compare the bond strength and the fracture resistance of different post systems. Materials and methods Endodontically treated 60 mandibular incisor and 60 mandibular premolar teeth were used for the bond strength and fracture resistance test respectively. For each test, three groups (n = 20) were formed according to the posts used zirconia posts (ZR post), individually formed glass fiber reinforced composite posts with an (Interpenetrating Polymer Network—IPN post) and cast metal posts. Then groups were randomly assigned into two subgroups according to the post design: 1-parallel sided and 2-tapered (n = 10/group). All posts were luted with a self-adhesive luting agent. For push-out test two 1 mm thick horizontal root sections were obtained and subjected to push-out test. For fracture resistance test, the specimens were loaded vertically at 1 mm/min crosshead speed. The push out test data were analyzed with Kruskal-Wallis and Dunn's test. Analysis of variance (ANOVA) and Tukey significant difference tests were used to compare the fracture resistance. Results Cast metal posts showed the highest retention (p < 0.05); however, IPN and zirconia posts showed similar results. No significant difference was found between parallel sided or tapered designs of post groups in terms of bond strength (p > 0.05). In terms of fracture resistance, IPN post groups showed lowest fracture resistance (p < 0.05). No significant difference was found between parallel sided or tapered posts in terms of fracture resistance, except zirconia post (p > 0.05). There was no relationship between the bond strength and fracture resistance of the post systems (r = – 0.015, p > 0.700). Conclusion Post type had effect both on the fracture resistance and retention of the posts used. However, post design had effect only on the fracture resistance of the post systems. Clinical significance Superficial treatment of the post used can improve the retention of post systems. How to cite this article Türker SA, Özçelik B, Yilmaz Z. Evaluation of the Bond Strength and Fracture Resistance of Different Post Systems. J Contemp Dent Pract 2015;16(10): 788-793.

scholarly journals Light Transmission of Various Aesthetic Posts at Different Depths and Its Effect on Push-Out Bond Strength, Microhardness of Luting Cement

Medicina ◽  
2022 ◽  
Vol 58 (1) ◽  
pp. 75
Author(s):  
Satheesh B. Haralur ◽  
Turki Abdullah Alasmari ◽  
Mohammed Hussin Alasmari ◽  
Hafiz Mohammed Hakami
Keyword(s):  
Bond Strength ◽  
Light Transmission ◽  
Testing Machine ◽  
Resin Cement ◽  
Light Transmittance ◽  
Zirconia Ceramic ◽  
Luting Cements ◽  
Luting Cement ◽  
Different Depths ◽  
Push Out

Background and Objectives: One requirement for the cemented post is the light transmittance on its entire length up to the deepest portion of a root canal to ensure the complete polymerization of resin cement. This study aimed to determine the light transmission ability in different aesthetic posts at different depths and its effect on the push-out bond strength and microhardness of luting cement at the corresponding interface. Materials and Methods: Twenty endodontic posts from glass fiber posts (GFP), zirconia ceramic posts (ZCP), and highly translucent zirconium oxide posts (HTZP) were sequentially sectioned into 12.8 and 4 mm lengths after recording the light intensity using a dental radiometer. Sixty single rooted premolar teeth root canals were treated and implanted vertically in a resin block. The post space was prepared and cemented with GFP, ZCP, and HTZP posts with twenty samples each. The root portion of teeth samples were sectioned into cervical, middle, and apical portion. A universal testing machine was utilized for the push-out bond strength test for the first ten samples from each group. The remaining ten samples from each group were used for the microhardness test using a micro-indenter instrument. The data were statistically analyzed using one-way Analysis of variance and Tukey HSD tests at p < 0.05. Results: The GFP endodontic postpresented with significant highest light translucency compared to HTZP, which was significantly higher than ZCP. GFP posts showed significantly higher bond strength per unit area compared to ZCP at analogous cross sections. The hardness of luting cement was also significantly higher amongst all tested endodontic posts. Conclusions: GFP high light translucency enhanced the curing of the luting resin cement that resulted in harder cement and a stronger bond supported by hardness and push-out tests. These findings suggest that GFP is preferred to be used with light-cured luting cements for restoration of endodontically treated teeth.

scholarly journals The Effect of Surface Preparation and Luting Agent on Bond Strength to a Zirconium-based Ceramic

10.2341/07-14 ◽  
2007 ◽  
Vol 32 (6) ◽  
pp. 623-630 ◽  
Author(s):  
D. P. Senyilmaz ◽  
W. M. Palin ◽  
A. C. C. Shortall ◽  
F. J. T. Burke
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Surface Preparation ◽  
Adhesive Layer ◽  
Tooth Size ◽  
Luting Cements ◽  
Luting Agent ◽  
Adhesive Luting ◽  
Ceramic Restorations ◽  
Effect Of Surface

Clinical Relevance Although clinical situations may exist where the adhesive luting of high-density milled ceramics for crown or fixed partial dentures are not required, certain clinical situations, such as the chairside repair of existing ceramic restorations, poor retention or inadequate abutment tooth size, will require a durable adhesive layer between the resin and ceramic. This study investigates the efficacy of modern “self-adhesive” luting cements on a zirconia-based ceramic following various surface preparations

Influence of Cement Type and Relining Procedure on Push-Out Bond Strength of Fiber Posts after Cyclic Loading

2015 ◽  
Vol 25 (1) ◽  
pp. 54-60 ◽  
Author(s):  
Ana Paula Farina ◽  
Henrique Chiela ◽  
Bruno Carlini-Junior ◽  
Marcelo Ferraz Mesquita ◽  
Daniela Cristina Miyagaki ◽  
...  
Keyword(s):  
Cyclic Loading ◽  
Bond Strength ◽  
Cement Type ◽  
Fiber Posts ◽  
Push Out

scholarly journals Does Caffeic Acid Phenethyl Ester as an Irrigation Solution Increase the Adhesive Quality of Root Canal Sealer?

2020 ◽  
Vol 11 (1) ◽  
pp. 65-70
Author(s):  
Samet Tosun ◽  
Emrah Karataslioglu
Keyword(s):  
Bond Strength ◽  
Caffeic Acid ◽  
Root Canal ◽  
Treated Group ◽  
Caffeic Acid Phenethyl Ester ◽  
Modes Of Failure ◽  
Root Canal Irrigation ◽  
Ah Plus ◽  
Root Dentin ◽  
Push Out

Aim: To evaluate the effect of the caffeic acid phenethyl ester (CAPE) as a root canal irrigation agent on the push-out bond strength of the AH-Plus sealer. Materials and Methods: A total of 75 single-rooted teeth were decoronated and were randomly divided into 5 groups of 15 roots for irrigation protocols: Group NaOCl: 5.25 percent NaOCl; Group CAPE: 0.5 percent CAPE; Group NaOCl + ethylenediaminetetraacetic acid (EDTA): 5.25 percent NaOCl-17 percent EDTA; Group NaOCl + CAPE: 5.25 percent NaOCl-0.5 percent CAPE; and Group CAPE + EDTA: 0.5 percent CAPE-17 percent EDTA (for 3 min each group). All root canals were then obturated and 1-mm-thick horizontal slices were obtained from different root thirds of the root canal (coronal, middle, and apical, respectively). The groups were challenged with push-out tests. Modes of failure were determined under a stereomicroscope. Results: The CAPE-EDTA-treated group presented the highest mean bond strength in the coronal region of root dentin ( P < .05). The CAPE-treated group had a higher mean bond strength than the NaOCl-treated group ( P < .05). The mixed mode of failure was most predominant in all groups. Conclusion: Under the presented in vitro conditions, CAPE alone or in combination with EDTA or NaOCl demonstrated a positive effect that increased the push-out bond strength of the AH-Plus sealer to root dentin.

Bond strength of concrete plugs embedded in tubular steel piles under cyclic loading

2006 ◽  
Vol 33 (2) ◽  
pp. 111-125 ◽  
Author(s):  
Abolghasem Nezamian ◽  
Riadh Al-Mahaidi ◽  
Paul Grundy
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Bond Strength ◽  
Steel Tube ◽  
Test Results ◽  
Pull Out ◽  
Steel Piles ◽  
Loading Tests ◽  
Cyclic Loading Tests ◽  
Push Out

Investigation of the load transfer of concrete plugs to tubular steel piles subjected to tension and compression and cyclic loading has been conducted at Monash University over the past 3 years. The work presented in this paper reports on the results of the combination of pull-out, push-out, and cyclic loading tests carried out on 15 steel tube specimens filled partially with reinforced concrete with variable lengths of embedment. The pull-out force was applied through steel reinforcing bars embedded in the concrete plug, and push-out forces were applied through a thick top circular plate on the top of the concrete plug. Test results included the cyclic loading, ultimate pull-out and push-out forces, slip of concrete plugs, and longitudinal and hoop strains along the piles for some specimens. The tests clearly showed that average bond strength significantly exceeds expectations and is higher than the results of previous investigations using plugs without reinforcement. The test results also indicated that cyclic loading tests reduced the bond strength due to the accumulation of damage to the plug–pile interface. The push-out and pull-out tests conducted under symmetric cyclic loading demonstrated that slip between the concrete plug and the steel tube increased with repeated loading, and the rate of slip growth increased with an increase in the peak load.Key words: tubular steel pile, reinforced concrete plug, bond, cyclic loading.

scholarly journals Microtensile Bond Strength of Self-Adhesive Luting Cements to Ceramics

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Tomoko Abo ◽  
Shigeru Uno ◽  
Masahiro Yoshiyama ◽  
Toshimoto Yamada ◽  
Nobuhiro Hanada
Keyword(s):  
Bond Strength ◽  
Microtensile Bond Strength ◽  
Luting Cements ◽  
Adhesive Luting
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