scholarly journals Effect of Intracanal Irrigants on Bond Strength of Fiber Posts Cemented With a Self-adhesive Resin Cement

2016 ◽  
Vol 41 (6) ◽  
pp. e159-e167 ◽  
Author(s):  
MS Barreto ◽  
RA Rosa ◽  
VG Seballos ◽  
E Machado ◽  
LF Valandro ◽  
...  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Resin Cement ◽  
Laser Scanning Microscopy ◽  
Fiber Post ◽  
Ultrasonic Activation ◽  
Adhesive Resin ◽  
Universal System ◽  
Fiber Posts ◽  
Adhesive Resin Cement

SUMMARY Objective: The aim of this study was to evaluate the effect of five intracanal irrigants on bond strength of fiber posts cemented with newer self-adhesive resin cement. Methods: A total of 60 extracted, single-rooted human premolars, sectioned at 14 mm, were prepared with the ProTaper Universal system with a size F3 instrument and filled with an F3 master cone and AH Plus. The root canal filling was partially removed, leaving 4 mm of apical gutta-percha. Specimens were randomly assigned to five groups (n=12), according to the solution used for dentin surface treatment before fiber post cementation, as follows: EDTA 17% (EDTA); QMix (QM); SmearClear (SC); 2.5% sodium hypochlorite (NaOCl), and 0.9% saline solution (SS). Ultrasonic activation was performed (three times, 20 seconds each), and root canals were dried with paper points. Fiber posts were cemented with RelyX U200. In one specimen per group, rhodamine B dye was mixed with RelyX U200 to provide adequate fluorescence for confocal laser scanning microscopy (CLSM) assessment. Specimens were transversally sectioned and three slices were obtained, one for each root third. Next, a push-out test was performed. A stereomicroscope and CLSM were used to analyze the failure modes and to illustrate the pattern of infiltration of RelyX U200 into dentinal tubules, respectively. Bond strength means were calculated, and analysis of variance and Bonferroni tests were used for statistical analysis. Results: SS showed the highest mean bond strength values (11.5±5.3), superior to QM (5.1±3.1) and SC (5.1±3.3). NaOCl presented intermediary bond strength values (9.7±5.0), similar to EDTA (7.7±2.9) and SS. QM and SC showed the lowest mean bond strength (p<0.05). Adhesive failures between cement/dentin were predominant (53.9%). Conclusion: SS and NaOCl associated with ultrasonic activation seem to be adequate solutions for root canal cleaning before fiber post cementation with self-adhesive resin cement, whereas chelating solutions, such as EDTA, QM, and SC, cause a decrease in bond strength.

scholarly journals Effect of Anatomical Customization of the Fiber Post on the Bond Strength of a Self-Adhesive Resin Cement

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Adricyla Teixeira Rocha ◽  
Leticia Machado Gonçalves ◽  
Ana Júlia de Carvalho Vasconcelos ◽  
Etevaldo Matos Maia Filho ◽  
Ceci Nunes Carvalho ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Resin Cement ◽  
Control Group ◽  
Fiber Post ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Adhesive Resin Cement ◽  
Push Out

Aim. The aim of the study was to evaluate, by means of the push-out test, the effect of the anatomical customization of the fiber post on the bond strength of a self-adhesive resin cement. Methods. Twelve endodontically treated, human, upper central incisors were randomly divided into two groups (n=6): control (glass fiber posts cemented with Relyx® U200) and customized (glass fiber posts anatomically customized with translucent composite resin cemented with Relyx U200). The roots were sectioned into three slices, cervical, middle, and apical, and photographed with a digital camera attached to a stereomicroscopic loupe. The images were analyzed by software, for evaluation of the cement line. The slices were subsequently submitted to the push-out test until the post had completely extruded, and the fracture mode was analyzed with a stereomicroscopic loupe. Results. The results showed significant differences between the groups in the different root thirds in relation to the area occupied by air bubbles (p<0.05). Bond strength, when all the thirds are considered, was 8.77 ± 4.89 MPa for the control group and 16.96 ± 4.85 MPa for the customized group. Conclusion. The customized group showed greater bond resistance than the control group and a more uniform cement layer.

Effect of Er,Cr:YSGG pretreatment on bond strength of fiber posts to root canal dentin using a self-adhesive resin cement

2012 ◽  
Vol 28 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Narmin Mohammadi ◽  
Siavash Savadi Oskoee ◽  
Mehdi Abed Kahnamoui ◽  
Mahmoud Bahari ◽  
Soodabeh Kimyai ◽  
...  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Resin Cement ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Adhesive Resin Cement ◽  
Root Canal Dentin

scholarly journals Adhesive Durability Inside the Root Canal Using Self-adhesive Resin Cements for Luting Fiber Posts

2017 ◽  
Vol 42 (6) ◽  
pp. E167-E176 ◽  
Author(s):  
K Bitter ◽  
A Maletic ◽  
K Neumann ◽  
L Breschi ◽  
G Sterzenbach ◽  
...  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Fiber Post ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Silver Deposits ◽  
Bond Strengths ◽  
One Year ◽  
Push Out

SUMMARY Objectives: The aim of the study was to investigate the effects of various self-adhesive resin cements on the push-out bond strengths and nanoleakage expression at the luting interfaces of fiber posts immediately and after one year of aging. Methods and Materials: One hundred forty-four extracted human anterior teeth were endodontically treated. After post space preparation, fiber posts were luted using five commercially available self-adhesive resin (SAR) cements and a core build-up material applied with a self-etch adhesive (BF: Bifix SE/Rebilda Post, VOCO; CSA: Clearfil SA Cement/Rely X Fiber Post, 3M ESPE; RX: RelyX Unicem 2/Rely X Fiber Post, 3M ESPE; SPC: Speed Cem/FRC Postec, Ivoclar Vivadent; SMC: Smart Cem/X Post, Dentsply; RB: Rebilda DC-Futurabond/Rebilda Post; n=22). For each group, half of the specimens were subjected to thermocycling (TC) (5°C-55°C, 10,000 cycles) and stored humid for one year at 37°C. Push-out bond strength data of six slices (thickness 1 mm) per root and nanoleakage expression of representative specimens were evaluated after 24 hours (baseline) and after TC and storage for one year (aging), respectively. Results: Bond strength differed significantly among resin cements (p&lt;0.0005) and the location inside the root canal (p&lt;0.0005), but not by aging (p=0.390; repeated-measures analysis of variance). SMC (14.6±5.8 MPa) and RX (14.1±6.8 MPa) revealed significantly higher bond strength compared to BF (10.6±5.4 MPa) and RB (10.0±4.6 MPa) but differed not significantly from SPC (12.8±4.8) MPa; CSA (6.1±4.6 MPa) revealed significantly lower bond strength compared to all other investigated materials (p&lt;0.05; Tukey Honestly Significantly Different). Qualitative nanoleakage analysis revealed more silver deposits at the interface in all groups after aging. For CSA, a large amount of silver deposits inside the cement was also observed at baseline and after aging. Conclusions: Fiber post luting using SAR cements demonstrated reliable bond strengths. Product-specific differences and initial degradation effects could be demonstrated.

scholarly journals Influence of Relining Post on the Bond Strength of Resin Cements

2015 ◽  
Vol 16 (7) ◽  
pp. 559-564 ◽  
Author(s):  
Matheus Coelho Bandéca ◽  
Adriano Augusto Melo de Mendonça ◽  
Etevaldo Matos Maia Filho ◽  
Fausto da Silva Bramante ◽  
Darlon Martins Lima ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
The Self ◽  
Fiber Post ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Significant Difference ◽  
Adhesive Cement ◽  
Push Out

ABSTRACT This study evaluated the influence of relining fiber posts on the bond strength (BS) of resin cements in the root canal. Forty bovine teeth were divided in four groups (n = 10)G1 (ARC)—fiber post cemented with resin cement RelyX ARC; G2 (ARC+Z350)—relined fiber post cemented with RelyX ARC; G3 (U200)—fiber post cemented with self-adhesive cement RelyX U200; G4 (U200+Z350)—relined fiber post cemented with RelyX U200. The roots were sectioned in six 1.2-mm slices and the push-out test was performed. Data were analyzed by three-way analysis of variance (ANOVA), and Tukey's test (α = 0.05). For the conventional resin cement, there was no significant difference between groups G1-ARC (15.5 ± 3.8) and G2-ARC+Z350 (16.1 ± 4.5). For the self-adhesive cement, the results revealed higher BS values for relined posts G4-U200 + Z350 (19.9 ± 7.9) as compared to non-relined posts G3-U200 (14.4 ± 4.5). For both cements, in groups of relined posts, the apical and the cervical thirds presented similar BS. Relining enhances the performance of the self-adhesive resin cement, and the interaction between relining and root third influences the BS to the conventional resin cement. How to cite this article Conde DM, Rodrigues VP, de Fátima Carvalho Souza S, Bauer JRO, da Silva Bramante F, Lima SNL, Filho EMM, Bandeca MC, de Mendonça AAM, Lima DM. Influence of Relining Post on the Bond Strength of Resin Cements. J Contemp Dent Pract 2015;16(7):559-564.

scholarly journals Relining effects on the push-out shear bond strength of glass fiber posts

2016 ◽  
Vol 45 (4) ◽  
pp. 227-233
Author(s):  
Adriana Rosado Valente ANDRIOLI ◽  
Margareth COUTINHO ◽  
Andréa Araújo de VASCONCELLOS ◽  
Milton Edson MIRANDA
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Shear Bond Strength ◽  
Resin Cement ◽  
Cervical Region ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Adhesive Resin Cement ◽  
Push Out

Abstract Introduction The correct use of glass fiber posts in endodontically treated teeth is essential for the clinical success of restorative treatment. Objective This study evaluated the push-out shear bond strength of relined (R) or non-relined (NR) glass fiber posts, cemented with self-adhesive resin cement [RelyXTM U100 (U100)] and conventional resin cement [RelyXTM ARC (ARC)]. Material and method Sixty human single-rooted teeth were endodontically treated and divided into ARC-NR; U100-NR; ARC-R; U100-R groups. The teeth were sectioned into cervical, middle and apical thirds, and subjected to the push-out test. Bond strength was analyzed by the Friedman test; cement and post types were compared by the Mann Whitney test. The pattern of failures was evaluated with digital camera through images at 200x magnification, and was classified as adhesive (at the cement/dentin or cement/post interface), cohesive (cement or post), and mixed failures. Result In ARC-NR, bond strength values were higher in the cervical third; in U100-NR and ARC-R they were similar between the thirds. In U100-R, in the cervical and middle thirds the bond strength values were similar, and there was lower value in the apical third. For non-relined glass fiber posts, the highest mean bond strength values were observed with self-adhesive resin cement. Whereas, relined posts cemented with conventional resin cement had stronger cement layer in comparison with non-relined fiber posts. Conclusion The post relining technique was efficient in ARC-R. ARC-NR and U100-R showed improved bond strength in the cervical region of canal walls. The main failures were adhesive at the cement-post interface.

Effect of different post space irrigation procedures on the bond strength of a fiber post attached with a self-adhesive resin cement

2016 ◽  
Vol 115 (5) ◽  
pp. 601-605 ◽  
Author(s):  
Esra Kul ◽  
Kübra Yesildal Yeter ◽  
Lütfü Ihsan Aladag ◽  
Leyla Benan Ayrancı
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
Fiber Post ◽  
Adhesive Resin ◽  
Adhesive Resin Cement ◽  
Post Space

scholarly journals COMPARATIVE EVALUATION OF PUSH-OUT BOND STRENGTH AND FAILURE MODES OF FIBER POST CEMENTED WITH DIFFERENT ADHESIVE RESIN CEMENTS: AN IN-VITRO STUDY

2020 ◽  
pp. 1-3
Author(s):  
Sonali Bansod ◽  
Ashwini Gaikwad ◽  
Abhijit Jadhav
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
Fiber Post ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Significant Difference ◽  
Group 3 ◽  
Adhesive Resin Cement ◽  
Group 2 ◽  
Push Out

Aim: To compare the push-out bond strength and modes of failure of fiber post cemented with different adhesive resin cements. Materials and Method: Forty five single rooted teeth were randomly divided into three groups as, group 1- Fluorocore 2+, group 2- Rely-X U200 and group 3-G-Cem, according to the adhesive resin cement used. The roots were subjected to chemo-mechanical preparation and cemented with adhesive resin cement. The teeth were sectioned into slices of the different root thirds and tested for bond strength (push out). Results were analysed using Chi square, Mann Whitney U and Kruskal Wallis test was used to find the significance of study parameters between three or more groups, with p = 0.05 for statistical significance. Result: Push out bond strength of Fluorocore 2+ is significantly higher at coronal level than apical level. No significant difference observed between coronal, middle and apical levels in group 2 and in group 3. Conclusion: Fluorocore 2+ adhesive resin cement is best to use for luting the fibre post. Fluorocore 2+ forms better bonding with post as well as dentin proving its better efficiency clinically.

scholarly journals Glass fiber post treatment – does it influence resin cement bond strength?

2019 ◽  
Vol 48 ◽  
Author(s):  
Marciano de Freitas BORGES ◽  
Gabriela Simões TEIXEIRA ◽  
Anelise Fernandes MONTAGNER ◽  
Alexandre Henrique SUSIN
Keyword(s):  
Hydrogen Peroxide ◽  
Bond Strength ◽  
Sodium Bicarbonate ◽  
Glass Fiber ◽  
Surface Treatments ◽  
Resin Cement ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Adhesive Resin Cement

Abstract Introduction Glass-fiber posts are used in order to improve the retention of restorations in endodontically treated teeth. Objective To evaluate the bond strength of glass-fiber posts submitted to different surface treatments and cemented to the root canal dentin with self-adhesive resin cement. Material and method Thirty roots of human canines were prepared and divided according to two factors: surface treatments (silane, 35% hydrogen peroxide, or sodium bicarbonate) and root thirds (cervical and middle thirds). The glass-fiber posts were cemented with self-adhesive resin cement (RelyX U200). After 24 h, the specimens were prepared for microtensile bond strength test (hourglass format), fracture pattern and micromorphological assessment by scanning electronic microscopy, in order to measure the cement line. Result The data (MPa and µm) were submitted to two-way ANOVA and Tukey’s test (α = 5%). The surface treatments influenced the bond strength of the posts cemented with self-adhesive resin cement (p<0.00). The mean bond strength (standard deviations) differed according to the region of root dentin (p<0.00): the cervical region (Control: 19.16MPa (3.71); Silane: 25.65MPa (4.04); Hydrogen peroxide: 24.43MPa (3.16); Sodium bicarbonate: 37.42MPa (8.27)) showed higher bond strength values than the middle third of the root (Control: 14.66MPa (4.65); Silane: 12.52MPa (5.03); Hydrogen peroxide: 10.64MPa (3.33); Sodium bicarbonate: 10.87MPa (2.49)). Conclusion Treatment of the glass-fiber post surface with chemical and physical agents increased the bond strength of the cement-post-dentin interface in the cervical third and the treatment with Sodium bicarbonate showed better results in bond strength.

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