Effect of crosslinkers on bond strength stability of fiber posts to root canal dentin and in situ proteolytic activity

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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Push-out bond strength of quartz fiber posts to root canal dentin using total-etch and self-adhesive resin cements

Medicina Oral Patología Oral y Cirugia Bucal ◽

10.4317/medoral.17429 ◽

2012 ◽

pp. e337-e344 ◽

Cited By ~ 9

Author(s):

MA. Kahnamouei ◽

N. Mohammadi ◽

EJ. Navimipour ◽

M. Shakerifar

Keyword(s):

Bond Strength ◽

Root Canal ◽

Quartz Fiber ◽

Resin Cements ◽

Adhesive Resin ◽

Fiber Posts ◽

Root Canal Dentin ◽

Push Out

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Bond Strength of Fiber-reinforced Posts to Deproteinized Root Canal Dentin

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1583 ◽

2014 ◽

Vol 15 (5) ◽

pp. 581-586 ◽

Cited By ~ 3

Author(s):

Adilson Yoshio Furuse ◽

Leonardo Fernandes Cunha ◽

Samantha Pugsley Baratto ◽

Denise Piotto Leonardi ◽

Gisele Aihara Haragushiku ◽

...

Keyword(s):

Ascorbic Acid ◽

Bond Strength ◽

Root Canal ◽

Sodium Ascorbate ◽

Fiber Reinforced ◽

Fiber Posts ◽

Etch And Rinse ◽

One Step ◽

Root Canal Dentin ◽

Push Out

ABSTRACT Aim This study evaluated the push-out bond strength of cemented fiber posts after deproteinization of root canal dentin walls with NaOCl. The effect of the application of an antioxidant solution (sodium ascorbate) was also evaluated. Materials and methods A three-step etch-and-rinse (Scotchbond - 3M Espe) and a one-step self-etching adhesive (Xeno III - Dentsply Caulk) were evaluated. Thirty bovine incisor roots were divided into 3 groups: a. Irrigation with physiologic solution (control). b. Deproteinization with 10 minutes irrigation of 5% NaOCl. c. Deproteinization with NaOCl followed by 10 minutes irrigation with 10% ascorbic acid. Fiber posts were cemented with a dual-cured cement (Rely X ARC - 3M ESPE). The push-out bond strength was evaluated after 24 hours of storage in distilled water. The data were analyzed with three-way ANOVA, one-way ANOVA and Tukey's test (á = 0.05). Results There were significant differences between groups (p < 0.05). The bond strength of Scotchbond was not influenced by the deproteinization. Xeno III showed a decrease in bond strength when deproteinized with 5% NaOCl (p < 0.05). For Xeno III, the subsequent irrigation with ascorbic acid was able to reverse the effect of the deproteinization. Considering the radicular thirds, the bond strength varied in the sequence—apical < middle < coronal. Conclusion Only the all-in-one adhesive was influenced by the deproteinization. Considering the respective control groups, both systems showed similar bond strength results. Clinical significance The decreased bond strength of the selfetching adhesive following deproteinization seams to be related to the oxidant effect of the NaOCl solution and the subsequent irrigation with ascorbic acid was able to reverse the effect of the deproteinization. How to cite this article Furuse AY, Cunha LF, Baratto SP, Leonardi DP, Haragushiku GA, Gonzaga CC. Bond Strength of Fiber-reinforced Posts to Deproteinized Root Canal Dentin. J Contemp Dent Pract 2014;15(5):581-586.

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The Effect of Different Post Space Surface Treatments on Push-out Bond Strength of Fiber Posts Adhesively Bonded to Root Canal Dentin

Egyptian Dental Journal ◽

10.21608/edj.2019.72853 ◽

2019 ◽

Vol 65 (1) ◽

pp. 755-761

Author(s):

Mostafa AbouShahba

Keyword(s):

Bond Strength ◽

Root Canal ◽

Surface Treatments ◽

Adhesively Bonded ◽

Fiber Posts ◽

Root Canal Dentin ◽

Post Space ◽

Push Out

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Effect of different solvent evaporation strategies on bond strength of fiber posts to root canal dentin: Push-out test

Cukurova Medical Journal (Çukurova Üniversitesi Tıp Fakültesi Dergisi) ◽

10.17826/cutf.322888 ◽

2017 ◽

Vol 42 (2) ◽

pp. 264-264

Author(s):

Görkem Özbilen ◽

Ayşin Dumani

Keyword(s):

Bond Strength ◽

Root Canal ◽

Solvent Evaporation ◽

Fiber Posts ◽

Root Canal Dentin ◽

Push Out

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

Lasers in Medical Science ◽

10.1007/s10103-012-1063-x ◽

2012 ◽

Vol 28 (1) ◽

pp. 65-69 ◽

Cited By ~ 14

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

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Effect of Root Dentin Pretreatment on Micro-Push-Out Bond Strength of Fiber Posts to Root Canal Dentin: Cold Atmospheric Argon Plasma (CAAP) and Ethylenediaminetetraacetic Acid (EDTA)

International Journal of Dentistry ◽

10.1155/2021/5571480 ◽

2021 ◽

Vol 2021 ◽

pp. 1-6

Author(s):

Farzaneh Sadeghi Mahounak ◽

Mahdi Abbasi ◽

Ladan Ranjbar Omrani ◽

Naghmeh Meraji ◽

Maryam Rezazadeh Sefideh ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Ethylenediaminetetraacetic Acid ◽

Argon Plasma ◽

Fiber Posts ◽

Significant Difference ◽

Mode Of Failure ◽

Atmospheric Argon ◽

Root Canal Dentin ◽

Push Out

Purpose. Debonding from the root canal dentin is the most common failure mode of fiber posts. This study aimed to assess the effects of cold atmospheric argon plasma (CAAP) and ethylenediaminetetraacetic acid (EDTA) on micro-push-out bond strength of fiber posts to root canal dentin. Materials and Methods. Forty maxillary canine teeth were decoronated, underwent endodontic treatment, and were stored in an incubator for 7 days. After post space preparation, the teeth were randomly divided into four groups for different surface treatments: (I) saline, (II) 17% EDTA, (III) CAAP, and (IV) 17% EDTA + CAAP. Fiber posts (Whitepost no. 2, FGM) were cemented into the root canals using Panavia F2.0 resin cement, and 1 mm-thick sections were made at the coronal, middle, and apical thirds of the roots. The samples underwent micro-push-out bond strength test. The mode of failure was also determined under a stereomicroscope. Data were analyzed using three-way ANOVA and Tukey’s post hoc test (α = 0.05). The mode of failure data were analyzed using the chi-square test. Results. The mean micro-push-out bond strength of fiber posts was not significantly different in the four groups ( P > 0.05 ). However, the bond strength values in the coronal third were significantly higher than the corresponding values in the apical third ( P = 0.01 ). There was no significant difference in the modes of failure between the groups ( P > 0.05 ). Conclusion. Application of CAAP alone or in combination with 17% EDTA could not successfully increase the bond strength of fiber posts to root canal dentin.

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Comparison of Medicaments Used in Regenerative Endodontics in Terms of Dentin Microhardness and Adhesion of Mineral in Terms of Dentin Microhardness and Adhesion of Mineral Trioxide Aggregate Trioxide Aggregat

Journal of Dentistry Indonesia ◽

10.14693/jdi.v27i3.1127 ◽

2020 ◽

Vol 27 (3) ◽

Author(s):

Esma Saricam ◽

◽

Neslihan Bulak ◽

Esra Özyurt ◽

Suat Özcan ◽

...

Keyword(s):

Bond Strength ◽

Clavulanic Acid ◽

Root Canal ◽

Mineral Trioxide Aggregate ◽

Significance Level ◽

Regenerative Endodontics ◽

Significant Difference ◽

Amoxicillin Clavulanic Acid ◽

Root Canal Dentin ◽

Push Out

Eliminating microorganisms in the root canal system is important for the success of regenerative endodontics. Objective: This study evaluated the effects of different antibiotic pastes used for regenerative endodontic procedures on dentin microhardness and the push-out bond strength of mineral trioxide aggregate (MTA) to root canal dentin. Methods: Sixty-four maxillary central incisors were instrumented and randomly divided into the following four groups (n = 16) for medicament treatment: triple antibiotic paste, amoxicillin+clavulanic acid, cefaclor, and control (no dressing). After 21 days, two root segments were obtained by sectioning the roots horizontally for push-out and microhardness evaluations. MTA was placed into the root canal of the sectioned segment for the push-out test. In the microhardness evaluation, three indentations were made at 500 and 1,000 μm from the canal lumen. The arithmetic mean was then calculated for each distance. ANOVA with post hoc Scheffe test and t test were used for the statistical analyses. The significance level was set at p < 0.05. Results: No significant difference was found between the groups in terms of push-out bond strength (p > 0.05). Cefaclor and amoxicillin+clavulanic acid reduced the microhardness values of the dentin at 500 μm (p < 0.05) while cefaclor had the lowest value at 1,000 μm (p < 0.05). Conclusion: Cefaclor reduced the microhardness value more than the other medicaments did at a depth of 1,000 μm. The pastes provided similar adhesion of MTA.

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