Effect of Resin Cement Pre-heating on the Push-out Bond Strength of Fiber Post to Root Canal Dentin

Objective: To evaluate the effect of different irrigation solutions prior to post cementation on the resin bonding to bovine root dentine. Material and Methods: 60 bovine roots (16 mm) were prepared to 12 mm with specific drill of a double-tapered fiber post system, included in PMMA, and divided into 6 groups, considering the irrigation solutions (IS) prior to cementation: Gr1- saline solution (control), Gr2- NaOCl 0.5 %, Gr3- NaOCl 1 %, Gr4- NaOCl 2.5 %, Gr5- NaOCl 5 %, Gr6- Chlorexidine 2 % (solution). The root canals were irrigated with IS 20 ml during 10 min. Then they were rinsed with 20 ml of distilled water and dried with paper points. One fiber post was molded with polyvinylsiloxane and 60 posts made of resin cement (PRC) were obtained moments before the cementation. The root canal dentin was etched with H2PO3 37 %/15 s + washing/drying, a multi-bottle etch&rinse adhesive system was applied and the PRC were resin luted with dual resin cement (DuolinkTM, Bisco). Each specimen was cut into 4 slices of ±1.8mm in thickness and submitted to push-out test (1 mm/min). Results: ANOVA showed that bond strength was significantly affected by IS (P<0.0001). The highest bond strengths (MPa) were those for the groups 4 (3.51 ± 1.52) and 5 (3.0 ± 1.16). The groups 1 (0.70 ± 0.30), 2 (0.80 ± 0.24), 3 (1.26 ± 0.57) and 6 (0.90 ± 0.41) were statistically similar to each other. Conclusion: The resin bonding to the root dentine was higher when higher concentrations of hypochlorite solutions were used.KeywordsBond strength; Irrigation solutions; Push-out test; Resin cement; Root canal dentin.

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Effect of Glass Fiber Post Adaptation on Push-Out Bond Strength to Root Dentin

Brazilian Dental Journal ◽

10.1590/0103-6440201902491 ◽

2019 ◽

Vol 30 (4) ◽

pp. 350-355 ◽

Cited By ~ 1

Author(s):

Thiago Lopes de Freitas ◽

Rafael Pino Vitti ◽

Milton Edson Miranda ◽

William Cunha Brandt

Keyword(s):

Bond Strength ◽

Glass Fiber ◽

Root Canal ◽

Failure Modes ◽

Resin Cement ◽

Adhesive Failure ◽

Fiber Post ◽

Significant Difference ◽

Glass Fiber Post ◽

Push Out

Abstract The aim of this study was to evaluate the effect of different glass fiber posts (GFPs) diameters on the push-out bond strength to dentin. Forty unirradicular human teeth were endodontically treated and used for cementation of GFPs (White Post DC, FGM) with different diameters (n=10): P1 - ø 1.6 mm coronal x 0.85 mm apical; P2 - ø 1.8 mm coronal x 1.05 mm apical; P5 - ø 1.4 mm coronal x 0.65 mm apical; and PC - customized post number 0.5 with composite resin (Tetric Ceram A2, Ivoclair Vivadent). All GFPs were cemented into the root canal using a dual-curing luting composite (Variolink II, Ivoclar Vivadent). One slice (1.7 mm) of each root third of cemented GFP (cervical, middle, and apical) was submitted to push-out testing. Failure modes of all specimens were classified as: adhesive failure between resin cement and post; adhesive failure between dentin and resin cement; cohesive failure within resin cement, post or dentin; and mixed failure. The data were analyzed with two-way ANOVA and Tukey’s test (a=0.05). The highest bond strength values were presented for the P2 and PC groups. There was no statistically significant difference between the GFP thirds in each group. The groups P2, P5, and PC showed predominantly adhesive failure. For P1, the most prevalent type of failure was adhesive between resin cement and post. It may be concluded that a glass fiber post that is well adapted to the root canal presents higher bond strength values, regardless of GFP third.

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Effect of Chlorhexidine Treatment Prior to Fiber Post Cementation on Long-Term Resin Cement Bond Strength

Operative Dentistry ◽

10.2341/16-241-lr2 ◽

2018 ◽

Vol 43 (2) ◽

pp. E72-E80 ◽

Cited By ~ 1

Author(s):

M Durski ◽

M Metz ◽

G Crim ◽

S Hass ◽

R Mazur ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Vertical Axis ◽

Resin Cement ◽

Fiber Post ◽

Resin Cements ◽

Single Root ◽

Number Of Cycles ◽

Push Out

SUMMARY The purpose of this study was to evaluate the push-out bond strength of two different adhesive cements (total etch and self-adhesive) for glass fiber post (GFP) cementation in simulated, long-term service (thermocycling) when the root canal is treated with chlorhexidine before cementation. One hundred twenty premolar specimens with a single root canal were selected, endodontically treated, and shaped for GFP cementation (n=120). The specimens were randomly placed into one of 12 groups (10 specimens each) according to cement (T = total-etch RelyX ARC or S = self-adhesive RelyX Unicem), treatment with chlorhexidine (N or Y: without or with), and number of thermal cycles (00, 20, or 40: 0, or 20,000 or 40,000 cycles): 1. TN00, 2. TN20, 3. TN40, 4. TY00, 5. TY20, 6. TY40, 7. SN00, 8. SN20, 9. SN40, 10. SY00, 11. SY20, 12. SY40. The root of each specimen was cut perpendicular to the vertical axis, yielding six 1.0 mm-thick sections. A push-out bond strength test was performed followed by statistical analysis using a factorial analysis of variance. Pairwise comparisons of significant factor interactions were adjusted using the Tukey test. Significant differences of push-out bond strengths were found in the four main effects (resin cement [p<0.0001], treatment with chlorhexidine [p<0.0001], number of cycles [p<0.0001], and root third [p<0.0001]) and all interactions (p<0.05 for all). Both resin cements produced higher bond strength in the cervical third followed by the middle third, and lower values were detected in the apical third. Additionally, the results suggest that the use of an additional disinfection treatment with chlorhexidine before the cement application produced the highest push-out bond strength regardless of root third. Further, the thermocycling simulation decreased the bond strength for both resin cements long-term when the chlorhexidine was not applied before cementation. However, when the root canal was treated with chlorhexidine and the fiber post was cemented with self-adhesive cement, the bond strength increased after 0, 20,000 and 40,000 cycles.

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Effect of different surface treatments on the push-out bond strength of fiber post to root canal dentin

Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology ◽

10.1016/j.tripleo.2009.03.047 ◽

2009 ◽

Vol 108 (2) ◽

pp. e74-e80 ◽

Cited By ~ 32

Author(s):

Ebru Özsezer Demiryürek ◽

Şafak Külünk ◽

Duygu Saraç ◽

Gözde Yüksel ◽

Bilinç Bulucu

Keyword(s):

Bond Strength ◽

Root Canal ◽

Surface Treatments ◽

Fiber Post ◽

Root Canal Dentin ◽

Push Out

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Regional bond strengths to root canal dentin of fiber posts luted with three cementation systems

Brazilian Dental Journal ◽

10.1590/s0103-64402011000600004 ◽

2011 ◽

Vol 22 (6) ◽

pp. 460-467 ◽

Cited By ~ 18

Author(s):

Giovana Mongruel Gomes ◽

Osnara Maria Mongruel Gomes ◽

Alessandra Reis ◽

João Carlos Gomes ◽

Alessandro Dourado Loguercio ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Repeated Measures ◽

Resin Cement ◽

Failure Pattern ◽

Fiber Posts ◽

Significant Difference ◽

Root Canal Dentin ◽

Adhesive Cement ◽

Push Out

This study evaluated the influence of the cementation system on the regional push-out bond strength and failure pattern of fiber posts to radicular dentin. The roots of 48 extracted human incisors were prepared and divided into 3 groups (n=16), according to the cementation system: AdperScotchbond Multi-Purpose + resin cement RelyX ARC (SBMP+ARC); Adper SingleBond 2 + RelyX ARC (SB+ARC) and; RelyX U100 self-adhesive resin cement (U100). The posts were cemented as per manufacturer’s instructions for each cementation system. After 1 week, the roots were sectioned transversely into 6 discs. Two discs were obtained from the cervical, middle and apical thirds and the push-out test was carried out. The failure pattern was examined on all debonded specimens. The data were analyzed by two-way repeated measures ANOVA and Tukey’s test. When U100 was used, no statistically significant difference (p>0.05) was observed among the different root regions. Statistically higher push-out bond strength values were detected in the cervical third for SBMP+ARC and SB+ARC (p<0.05). The U100 showed significantly more mixed failures than SBMP+ARC in the apical third (p<0.05). In conclusion, the self-adhesive cement RelyX U100 was the only cement not sensitive to the root canal region.

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Evaluation of Various Pretreatments to Fiber Post on the Push-out Bond Strength of Root Canal Dentin

Journal of Endodontics ◽

10.1016/j.joen.2017.03.006 ◽

2017 ◽

Vol 43 (7) ◽

pp. 1180-1185 ◽

Cited By ~ 10

Author(s):

Ömer Kırmalı ◽

Özlem Üstün ◽

Alper Kapdan ◽

Alper Kuştarcı

Keyword(s):

Bond Strength ◽

Root Canal ◽

Fiber Post ◽

Root Canal Dentin ◽

Push Out

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COMPARATIVE EVALUATION OF PUSH-OUT BOND STRENGTH OF FIBER POST LUTED INSIDE THE ROOT CANAL USING LIGHT CURE FLOWABLE COMPOSITE AND DUAL CURE RESIN - AN INVITRO STUDY

International Journal of Advanced Research ◽

10.21474/ijar01/12390 ◽

2021 ◽

Vol 9 (01) ◽

pp. 1058-1064

Author(s):

Aamir Bashir ◽

◽

Adil Fayaz ◽

Sandeep Kaur Bali ◽

Shazana Nazir Qazi ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Testing Machine ◽

Storage Period ◽

Resin Cement ◽

Fiber Post ◽

Maxillary Central Incisor ◽

Flowable Composite ◽

Luting Agents ◽

Push Out

Aim: The aim of this study was to compare by means of Push-Out test the difference in bond strength of two different luting agents with fibre post, and the effect of anatomical root levels on the bond strength of each cement. Materials and Methods: A total of 40 freshly extracted maxillary central incisor and canine teeth were included in the study. The teeth were divided into two groups of twenty each, and were assigned to Groups A and B according to the luting agent (light cure, dual cure) used to cement the post inside the root canal. After decoronation, 10 mm standardized post spaces were prepared inside each root. Luting of fiber posts was carried out, as per manufacturers recommendations, with the respective luting agents. Each root was embedded in a cuboidal plaster block and sectioning was carried out to obtain three slices of 2.5 mm thickness from the coronal, middle and apical aspect of the root. This was followed by Push-Out testing on a Universal Testing Machine after a storage period of 2 months. The recorded data were subjected to statistical analysis. Results: Significant differences were found in the bond strength of light cure flowable composite and dual cure resin cement (p<.05) at different anatomical root levels. In the inter-group comparison it was found that dual cure presents superior mean bond strength in comparison with light cure composite. Conclusion: It was concluded from this study that dual cure resin cement is the best material for luting fiber post to root canal. The push-out bond strength was lower in the apical third than the coronal third for light activated cements. Also, light cure flowable composite performs better when shorter posts are used.

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Comparison of Push-out Bond Strength of FiberSite and RelyX Fiber Post Systems to Root Canal Dentin

Turkiye Klinikleri Journal of Dental Sciences ◽

10.5336/dentalsci.2017-59222 ◽

2018 ◽

Vol 24 (1) ◽

pp. 33-38

Author(s):

Mustafa GÜNDOĞAR ◽

Gülşah USLU ◽

Koray YILMAZ ◽

Can TOPKARA ◽

Taha ÖZYÜREK

Keyword(s):

Bond Strength ◽

Root Canal ◽

Fiber Post ◽

Root Canal Dentin ◽

Push Out

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Effect of light-curing units on push-out fiber post bond strength in root canal dentin

Laser Physics ◽

10.1134/s1054660x09150067 ◽

2009 ◽

Vol 19 (8) ◽

pp. 1867-1871 ◽

Cited By ~ 5

Author(s):

L. R. Calixto ◽

M. C. Bandéca ◽

F. B. Silva ◽

A. N. S. Rastelli ◽

S. T. Porto-Neto ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Fiber Post ◽

Light Curing ◽

Root Canal Dentin ◽

Push Out ◽

Effect Of Light

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Influence of Zingiber officinale Extract on Push-Out Bond Strength of Glass-Fiber Post

Brazilian Dental Journal ◽

10.1590/0103-6440201801544 ◽

2018 ◽

Vol 29 (1) ◽

pp. 93-98 ◽

Cited By ~ 1

Author(s):

Tânia Mara da Silva ◽

Virgílio Vilas Boas Fernandes Junior ◽

Rosemary Soares de Santana ◽

Renata Marques de Melo Marinho ◽

Márcia Carneiro Valera ◽

...

Keyword(s):

Bond Strength ◽

Glass Fiber ◽

Zingiber Officinale ◽

Resin Cement ◽

Fiber Post ◽

Ginger Extract ◽

Etch And Rinse ◽

Glass Fiber Post ◽

Push Out

Abstract The aim of this study was to evaluate in vitro the influence of 20% glycolic ginger extract on the bond strength of glass-fiber post cemented with etch-and-rinse or self-etching resin cement. Forty-eight bovine roots were standardized (17±0.5 mm) and randomly divided into two groups, according to irrigant used during biomechanical preparation: NaOCl: 1% sodium hypochlorite and GEN: 20% glycolic ginger extract. Root canal was prepared and randomly assigned to one of two subgroups (n=12), according to luting protocol: self-etching (RelyX U200) and etch-and-rinse (RelyX ARC). After 48 h, the roots were sectioned perpendicularly (4 in cervical third and 3 in middle third) and submitted to push-out bond strength test (50 kgf load cell, 1.0 mm/min). Failure mode was analyzed in SEM and stereomicroscopy. Data were analyzed by three-way ANOVA and Tukey tests (p<0.05). ANOVA revealed that there were no significant differences between U200 (2.01±0.17)B and ARC (1.93±0.12)B in GEN group, and at the cervical third for both irrigants, 2.69±0.16A and 2.54±0.17A, respectively. Middle third showed lower bond strength than cervical third, regardless the irrigant. Overall, the cervical third regardless the irrigant employed and the association between NaOCl and ARC, presented better adhesive performance.

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