Adhesion of Epiphany and AH Plus sealers to human root dentin treated with different solutions

Nunes, Vinicius Humberto; Silva, Ricardo Gariba; Alfredo, Edson; Sousa-Neto, Manoel Damião; Silva-Sousa, Yara Teresinha Corrêa

doi:10.1590/s0103-64402008000100008

Cited by 112 publications

(153 citation statements)

References 16 publications

(25 reference statements)

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“…The dentin bond strength evaluation used in the present study was based on Nunes et al (17), which also used root dentin slices with the canal space enlarged by conic diamond drill. With the purpose of assessing the bond strength of root-end filling materials to the apical dentin, Marques et al (18) proposed a new methodology using ultrasound tips to prepare the root-end cavities.…”

Section: Discussionmentioning

confidence: 99%

Physicochemical Properties and Dentin Bond Strength of a Tricalcium Silicate-Based Retrograde Material

et al. 2017

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The aim of this study was to evaluate the physicochemical properties and the apical dentin bond strength of the tricalcium silicate-based Biodentine in comparison to white MTA and zinc oxide eugenol-based cement (ZOE). Setting time and radiopacity were evaluated according to ISO 6876:2012 specification. Final setting time, compressive strength and pH were also assessed. Material's bond strength to the apical root canal dentin was measured by the push-out assay. Data were analyzed by ANOVA and TukeyKrammer post-hoc test. Biodentine presented the shortest initial (16.2±1.48 min) and final setting time (35.4±5.55 min). Radiopacity of Biodentine (2.79±0.27 mmAl) does not agree with ISO 6876:2012 specifications. On the other hand, Biodentine showed higher compressive strength after 21 days (37.22±5.27 MPa) and higher dentin bond strength (11.2±2.16 MPa) in comparison to white MTA (27.68±3.56 MPa for compressive strength and 2.98±0.64 MPa for bond strength) (p<0.05). Both MTA and Biodentine produced an alkaline environment (approximately pH 10) (p>0.05) compared to ZOE (pH 7). It may be concluded that Biodentine exhibited faster setting, higher long-term compressive strength and bond strength to the apical dentin than MTA and ZOE.

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Section: Discussionmentioning

confidence: 99%

Physicochemical Properties and Dentin Bond Strength of a Tricalcium Silicate-Based Retrograde Material

et al. 2017

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“…Different mechanical methods of evaluation have been proposed, such as shear bond strength (14,15), microtensile bond strength (7) and push-out tests (9,13,16), and different values of bond strength have been reported, even for the same material. The push-out test was used in this study for being easy to reproduce, to interpret and also for being able to realistically record, at even low levels, the bond strength to dentin (17,18). The hypothesis that push-out tests are operator-dependent (19) was not considered, since the bonding procedures were made by the same operator.…”

Section: Discussionmentioning

confidence: 99%

Effect of calcium hydroxide intracanal dressing on the bond strength of a resin-based endodontic sealer

Barbizam

Trope²,

Teixeira³

et al. 2008

Braz. Dent. J.

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The aim of this in vitro study was to evaluate the bond strength of Epiphany™ resin-based sealer to dentin walls after placement of calcium hydroxide [Ca(OH) 2 ] dressings. Fifteen extracted single-rooted human teeth were instrumented using 2.5% NaOCl + EDTA as irrigants. The teeth were randomly assigned to 3 groups (n=5), according to the intracanal dressing: G1= Ca(OH) 2 + saline; G2= Ca(OH) 2 + 2% chlorhexidine gluconate (CHX) gel; and G3= saline (control). After 10 days of storage in 100% humidity at 37°C, the dressings were removed and the root canals were filled with Epiphany™ sealer. After additional 48 h of storage, the specimens were sectioned transversally into 2-mm-thick discs. Push-out tests were performed (1 mm/min, Instron 4411) and the maximum loads at failure were recorded in MPa. One-way ANOVA and Newman-Keuls tests showed a statistically significant decrease in bond strength when a Ca(OH) 2 dressing was used before root canal filling with Epiphany™ (G1= 10.18 ± 1.99 and G2= 9.98 ± 2.97) compared to the control group (13.82 ± 3.9) (p< 0.05). It may be concluded that the use of Ca(OH) 2 as an intracanal dressing material affected the adhesion of Epiphany™ to the root canal walls, but even though the values were within the acceptable range found in the literature.

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“…Root canals were filled with AH Plus, which is a resin-based sealer of strong sealing ability due to great adhesion to dentin (13) and consequent reduced bacterial leakage, according to results reported by in vivo studies (14,15).…”

Section: Discussionmentioning

confidence: 99%

Computed tomography assessment of the efficiency of different techniques for removal of root canal filling material

Dall'Agnol

Hartmann²,

Barletta

2008

Braz. Dent. J.

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This study evaluated the efficiency of different techniques for removal of filling material from root canals, using computed tomography (CT). Sixty mesial roots from extracted human mandibular molars were used. Root canals were filled and, after 6 months, the teeth were randomly assigned to 3 groups, according to the root-filling removal technique: Group A -hand instrumentation with K-type files; Group B -reciprocating instrumentation with engine-driven K-type files; and Group C rotary instrumentation with engine-driven ProTaper system. CT scans were used to assess the volume of filling material inside the root canals before and after the removal procedure. In both moments, the area of filling material was outlined by an experienced radiologist and the volume of filling material was automatically calculated by the CT software program. Based on the volume of initial and residual filling material of each specimen, the percentage of filling material removed from the root canals by the different techniques was calculated. Data were analyzed statistically by ANOVA and chi-square test for linear trend (=0.05). No statistically significant difference (p=0.36) was found among the groups regarding the percent means of removed filling material. The analysis of the association between the percentage of filling material removal (high or low) and the proposed techniques by chi-square test showed statistically significant difference (p=0.015), as most cases in group B (reciprocating technique) presented less than 50% of filling material removed (low percent removal). In conclusion, none of the techniques evaluated in this study was effective in providing complete removal of filling material from the root canals.

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Adhesion of Epiphany and AH Plus sealers to human root dentin treated with different solutions

Cited by 112 publications

References 16 publications

Physicochemical Properties and Dentin Bond Strength of a Tricalcium Silicate-Based Retrograde Material

Physicochemical Properties and Dentin Bond Strength of a Tricalcium Silicate-Based Retrograde Material

Effect of calcium hydroxide intracanal dressing on the bond strength of a resin-based endodontic sealer

Computed tomography assessment of the efficiency of different techniques for removal of root canal filling material

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