An In Vitro Comparison of Bond Strength of Various Obturation Materials to Root Canal Dentin Using a Push-Out Test Design

Fisher, Matthew; Berzins, David W.; Bahcall, James K.

doi:10.1016/j.joen.2007.02.011

Cited by 224 publications

(237 citation statements)

References 24 publications

(19 reference statements)

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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).…”

Section: Discussionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

“…The influence of irrigating solutions and intracanal medications on bond strength (7) and adhesion (8,9) of endodontic sealers to dentin has been subject of several studies. It seems to have a special importance since new concepts and techniques of adhesive root canal filling materials have been recently introduced (10).…”

Section: Introductionmentioning

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.

View full text Add to dashboard Cite

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“…Among various types of sealers, an epoxy resin sealer is commonly used in endodontic treatment due to its superior physical properties 3,4) . An epoxy resin sealer produced the highest bond strength to root dentin compared with other types of sealers 5) , due to the covalent bonds forming between the epoxide rings and the exposed amino groups in the collagen network of root dentin 6) . Unfortunately, the final irrigants which have been recommended to use before root canal obturation caused a decrease in the bond strength of an epoxy resin sealer to root dentin [7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

Epigallocatechin-3-gallate increased the push out bond strength of an epoxy resin sealer to root dentin

Pheenithicharoenkul

Panichuttra

2016

Dent. Mater. J.

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This study aimed to investigate the effect of epigallocatechin-3-gallate (EGCG) from green tea extract on the push out bond strength of an epoxy resin sealer to root dentin. Seventy single root canal premolars were decoronated and instrumented. The roots were randomly irrigated with different final irrigation protocols (n=16): 17%EDTA (EDTA), 17%EDTA followed by 2.5%NaOCl (EDTA+NaOCl), 17%EDTA followed by 1 mg/mL EGCG (EDTA+EGCG) and 1 mg/mL EGCG (EGCG). Other six root canals were received only 2.5%NaOCl as a control group. One root from each group (n=1) was excluded and prepared for SEM investigation. All root canals were then obturated and horizontally sectioned to perform the push out test. EDTA+EGCG group had the highest bond strength (p<0.05). EGCG group showed higher bond strength than EDTA group (p<0.05). The use of EGCG as a final irrigant significantly increased the push out bond strength of an epoxy resin sealer to root dentin.

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“…Recently, adhesive obturation systems have been introduced in endodontics in an attempt to obtain a "monoblock" in which the core material, sealing agent and root canal dentin form a single cohesive unit within the root canal (5) . Increased adhesive properties to dentin might lead to greater strength of the restored tooth, which may provide greater resistance to root fracture and clinical longevity of an endodontically treated tooth (6) .Recent advances in adhesive technology have led to the introduction of a new generation of endodontic sealers and filling materials that are based on adhesive properties and polymer resin technology.…”

Section: Dentin Bond Strength Evaluation Of Three Root Canal Sealers mentioning

confidence: 99%

Dentin Bond Strength Evaluation of Three Root Canal Sealers with Cold Gutta-Percha Lateral Obturation Technique: Push-Out Test Study

2017

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Aim: This study was designed to evaluate dentin bond strength by push-out test of three root canal sealers (IRoot SP, AH Plus, and MTA Fillapex endodontic sealers) with cold gutta-percha lateral obturation technique using push-out test. Methods: A total of 57 human freshly extracted mandibular premolar teeth for orthodontic reason were used in this study. All samples were decoronated 16±1mm from the apex and prepared using step-back technique up to master apical file # 40. The specimens were divided randomly into three groups (19 teeth each) according to the type of sealers used; Group 1(IRoot SP), Group 2(AH Plus sealer), and Group 3 (MTA Fillapex sealer). Each group was obturated with cold gutta-percha lateral obturation technique. The specimens were incubated for 7 days at 37 o C with 100% humidity. Three sections of 2 mm thickness were obtained at 3, 7 and 11mm from the apex to represent apical, middle and coronal third respectively. The push-out bond strength was determined for each root slice. Values were recorded, tabulated for each group and statistically analyzed. Results: IRoot SP showed the highest mean value of push-out bond strength (7.3±0.2), followed by AH Plus (6.8±0.1) while MTA Fillapex showed the lowest mean value of push-out bond strength (2.9±0.3). Conclusions: IRoot SP and AH plus sealers had greater resistance to push-out than MTA Fillapex sealer.

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An In Vitro Comparison of Bond Strength of Various Obturation Materials to Root Canal Dentin Using a Push-Out Test Design

Cited by 224 publications

References 24 publications

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

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

Epigallocatechin-3-gallate increased the push out bond strength of an epoxy resin sealer to root dentin

Dentin Bond Strength Evaluation of Three Root Canal Sealers with Cold Gutta-Percha Lateral Obturation Technique: Push-Out Test Study

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