Comparative evaluation of push-out bond strength of a MTA-based root canal sealer

Gurgel‐Filho, Eduardo Diogo; Leite, Felipe Martins; Lima, Jaírton Benício de; Montenegro, João Paulo Chaves; Saavedra, Flávia; Silva, Emmanuel João Nogueira Leal

doi:10.1590/1677-3225v13n2a07

Cited by 33 publications

(38 citation statements)

References 26 publications

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“…Gurgel-Filho et al 6 showed that the lowest bond strength to root dentin was MTA-Fillapex which is similar to the present study where Fillapex sealer has the lowest mean marginal and apical adaptation at coronal as well as in the apical third among the three sealers used in the study. When the sealers come into contact with phosphate-containing fluids, the set material releases calcium and hydroxyl ions and forms apatite; this theory was put forth by Sarkar et al 10 Reyes-Carmona et al, 11 in their study done in 2009, observed that the formation of an interface layer by apatite with tag-like structures plays a crucial role, this apatite is formed by MTA and phosphate-buffered saline which gets deposited within collagen fibrils, and it promotes controlled mineral nucleation on dentin formed.…”

Section: 9supporting

confidence: 90%

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Assessment of Marginal Adaptation and Sealing Ability of Root Canal Sealers: An in vitro Study

Remy

Krishnan

Job

et al. 2017

The Journal of Contemporary Dental Practice

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Aim: This study aims to compare the marginal adaptation and sealing ability [mineral trioxide aggregate (MTA)-Fillapex, AH Plus, Endofill sealers] of root canal sealers. Materials and methods:In the present study, the inclusion criteria include 45 single-rooted extracted mandibular premolar teeth, with single canal and complete root formation. The sectioning of the samples was done at the cementoenamel junction using a low-speed diamond disc.Step-back technique was used to prepare root canals manually. The MTA-Fillapex, AH Plus, and Endofill sealers were the three experimental sealer groups to which 45 teeth were distributed. Under scanning electron microscope (SEM), marginal gap at sealer and root dentin interface were examined at coronal and apical halves of root canal.Results: Among the three maximum marginal adaptations were seen with AH Plus sealer (4.10 ± 0.10) which is followed by Endofill sealer (1.44 ± 0.18) and MTA-Fillapex sealer (0.80 ± 0.22). Between the coronal and apical marginal adaptation, significant statistical difference (p = 0. Kannur, Kerala, India, e-mail: vimalremy@gmail.com there was a statistically significant difference (p < 0.05) found between the above two groups at coronal and apical third. Conclusion:The present study proves that AH Plus sealer has a better marginal adaptation when compared with other sealers used.Clinical significance: For sealing space of crown wall and main cone in root canal treatment, sealers play an important role. The other advantages of sealers are that they are used to fill voids and irregularities in root channel, secondary, lateral channels, and space between applied gutta-percha cones and also act as tripper during filling.

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Section: 9supporting

confidence: 90%

“…The final obturation neither retracts nor resorbs. 6 This in vitro study compares marginal adaptation and sealing ability (MTA-Fillapex, AH Plus, Endofill sealers) of root canal sealers.…”

Section: Jcdpmentioning

confidence: 99%

Assessment of Marginal Adaptation and Sealing Ability of Root Canal Sealers: An in vitro Study

Remy

Krishnan

Job

et al. 2017

The Journal of Contemporary Dental Practice

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“…That also can be applied to EndoSequence BC which also forms a hydroxyapatite hybrid layer upon setting (23,24,25). This result came in accordance with the results of other studies (8,15,23,25) and contradict to others. Assmann et al (20) reported no significant difference between the bond strength of AH Plus and the MTA Fillapex sealers, while Naser and Al-Zaka (24) and Shokouhinejad et al (26) reported no significant difference between AH Plus and BC sealers.…”

supporting

confidence: 85%

“…It has been suggested that push-out test provides a good evaluation of bond strength because the load applied parallel to the dentine bonding interface simulates clinical stresses (10,14,15,16). It has the advantages of testing different sections in the root canal besides the simplicity of sample preparation in comparison to other tests (17).…”

mentioning

confidence: 99%

Assessment of Push-Out Bond Strength and Interfacial Adaptation of Two New Endodontic Sealers; Endosequence Bc and Mta Fillapex to Root Canal Dentine (An in Vitro Study).

Nafiz¹,

Yacoub²,

Ahmed³

2018

IJAR

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Introduction: the aim of this in vitro study was to evaluate push-out bond strength and interfacial adaptation to dentine wall of EndoSequence BC (BC) and MTA Fillapex sealers compared to AH Plus sealer (AH+). Methods: sixty-six human extracted single rooted teeth with single root canal were selected and the crowns were removed at the level of CEJ to standardized the roots length (16 mm). Samples were instrumented using ProTaper universal NiTi rotary system up to size F5. After irrigation and smear layer removal samples were randomly divided according to tested sealer used into three groups of 22 sample each, and then obturated using lateral compaction technique and stored for 1 week before testing. Each group was subdivided according to test into two subgroups of 11 sample each, push-out test or interfacial adaptation. Data were statistically analyzed by one-way ANOVA and Tukay's post-hoc test (P≤0.05). Results: AH Plus has a statistically significant higher bond strength value than each of EndoSequence BC group and MTA Fillapex group. Regarding interfacial adaptation there was no statistically significant difference between the three sealers. Conclusion: EndoSequence BC bioceramic sealer, MTA Fillapex MTA based sealer showed their inferiority regarding push-out bond strength when compared to AH Plus resin based sealer. All of the three sealers showed different grades of gap width along the whole length of root canal wall.

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“…Because of the poor adhesiveness of gutta-percha, root canal sealers must be used to fill imperfections and increase adaptation of the root filling material to the canal walls to avoid any chance for leakage and failure [43][44][45][46] .…”

Section: Discussionmentioning

confidence: 99%

Push Out Bond Strength of Root Canal Filling With Epoxy Resin-Based, Mta-Based and Bioceramic-Based Endodontic Sealers

Kamha

Enan

2018

Egyptian Dental Journal

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Aim: to compare the push out bond strength of the root canal filling with epoxy resin-based (Adseal), MTA-based (MTA Fillapex) and Bioceramic-based (Endosequance BC) sealers. Materials and Methods:Forty five extracted mandibular human first premolars with straight fully formed roots were selected for this study and were de-coronated at 17 mm from the apex. All root canals were prepared by using the ProTaper Universal Ni Ti rotary system in a crown down manner up to F4 according to manufacturer's instruction to the their working length. The canals were irrigated with 17% EDTA to remove the smear layer and the final rinse was performed with 5 mL 5.25% sodium hypochlorite. The roots were randomly assigned to three groups, fifteen for each (n=15). Adseal, MTA Fillapex and Endosequence BC sealers were used with gutta percha size F4 by lateral condensation technique for groups I, II and III respectively. All roots stored in 100% humidity at 37ºC for one week for completing setting of sealers. The roots were embedded in self cure acrylic resin, and transversely sectioned perpendicular to the long axis of the root 2 mm thickness slices. Apical diameter of 0.88 ± 0.02 mm in all slices were selected for the pushout test by universal testing machine. The dislodging force was measured in Newton for all slice samples and tabulated. Push out bond strength (MPa) for every slice sample is calculated and the three groups were compared. The slices were then examined under stereomicroscope and categorized into adhesive, cohesive or mixed type of bond failure mode. The data were tabulated and statistically analyzed.Results: Endosequence bioceramic represented the highest bond strength followed by Adseal then MTA Fillapex which represented the lowest bond strength with a significant difference between them at P≤0.05. Comparison between Adseal and Endosequence bioceramic groups and between MTA Fillapex and Endosequence bioceramic groups showed a significant difference between them at P≤0.05 with higher bond strength of Endosequence bioceramic sealer. Adseal represented higher bond strength than MTA Fillapex with no significant difference between them at P≤0.05. Comparison between the three tested groups of sealers regarding the bond failure categories showed no significant difference between them at P≤0.05. (1708) Recently, MTA Fillapex (Angelus, Londrina, PR, Brazil) is MTA-based sealer presented in a paste-paste system and composed of resins, bismuth oxide, silica nanoparticles, and pigments. It is a modification of the MTA original formulations to improve the characteristics such as good radiopacity, flow, setting time, alkaline pH and adhesion, Conclusion: Within the limitations of this study, Endosequence bioceramic sealer show promising results as root canal sealer and exhibited a greater resistance to push out than MTA Fillapex and epoxy resin-based sealer (Adseal) with gutta-percha as a root canal filling.

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Comparative evaluation of push-out bond strength of a MTA-based root canal sealer

Cited by 33 publications

References 26 publications

Assessment of Marginal Adaptation and Sealing Ability of Root Canal Sealers: An in vitro Study

Assessment of Marginal Adaptation and Sealing Ability of Root Canal Sealers: An in vitro Study

Assessment of Push-Out Bond Strength and Interfacial Adaptation of Two New Endodontic Sealers; Endosequence Bc and Mta Fillapex to Root Canal Dentine (An in Vitro Study).

Push Out Bond Strength of Root Canal Filling With Epoxy Resin-Based, Mta-Based and Bioceramic-Based Endodontic Sealers

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