Comparison of the effect of MTAD and conventional irrigation agents on apical leakage and push-out bond strength of root canal filling

Abstract Introduction The resistance adhesive of a fiber post can be affected by several factors, such as the endodontic sealer and post-endodontic waiting time. Objective The aim of this study was to evaluate the effect of different endodontic sealers and two different post-endodontic waiting times on the bond strength of fiber posts. Material and method Seventy-two bovine teeth were endodontically treated and filled using three endodontic sealers: eugenol-based, epoxy resin-based, or mineral trioxide aggregate-based. The specimens were stored at 37°C for 24 hours or for 30 months. After the respective storage times, the root canals were prepared for luting fiber posts using RelyX U200. Push-out tests and analysis of failures were performed. The push-out data were analyzed by two-way analysis of variance to compare the effects of the endodontic sealer and with the t-test to compare the effects of post-endodontic waiting time. Result The AH Plus sealer yielded the highest bond strength values at 30 months post-endodontics (11.26 Mpa) (p < 0.05), however no had difference with Endofill sealer at the same time. Endofill and MTA Fillapex sealers did not differ significantly in their effects, irrespective of the post-endodontic waiting time. Conclusion In conclusion, the endodontic sealer used and post-endodontic waiting time affect the adhesive resistance of fiber posts. The adhesion increases significantly when the fiber post is cemented 30 months after the root canal filling, while the adhesion is reduced when cementing immediately after root canal treatment, in particular for eugenol-based endodontic sealers.

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Push-out bond strength of different intracanal posts in the anterior primary teeth according to root canal filling materials

Dental Research Journal ◽

10.4103/1735-3327.215959 ◽

2017 ◽

Vol 14 (5) ◽

pp. 336

Author(s):

Shirin Taravati ◽

Nilgoon Pasdar ◽

Bahman Seraj ◽

Mostafa Fatemi

Keyword(s):

Bond Strength ◽

Root Canal ◽

Primary Teeth ◽

Root Canal Filling ◽

Filling Materials ◽

Root Canal Filling Materials ◽

Push Out

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Influence of Root Canal Filling Techniques on Sealer Penetration and Bond Strength to Dentin

Brazilian Dental Journal ◽

10.1590/0103-6440201602460 ◽

2017 ◽

Vol 28 (3) ◽

pp. 380-384 ◽

Cited By ~ 4

Author(s):

Luciana Martins Domingues de Macedo ◽

Yara Silva-Sousa ◽

Silvio Rocha Corrêa da Silva ◽

Samantha Schaffer Pugsley Baratto ◽

Flares Baratto-Filho ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Laser Scanning Microscopy ◽

Filling Material ◽

Root Canal Filling ◽

Significant Difference ◽

Single Cone ◽

Ah Plus ◽

The Impact ◽

Push Out

Abstract The influence of root canal filling techniques on the penetration of AH Plus into dentinal tubules was evaluated using confocal laser scanning microscopy (CLSM) and the impact on the bond strength of the filling material on the root dentin was evaluated using the push-out test. Roots of the maxillary central incisors (n=40) were prepared with ProTaper Universal and assigned to four groups: lateral condensation, vertical compaction, modified Tagger hybrid and single cone. After root canal filling with gutta-percha and AH Plus, along with the addition of 0.01% fluorescein, the roots were cut into 2-mm slices. CLSM was performed on the first slice of each root third, followed by the push-out test. The second slice was analyzed under SEM. ANOVA demonstrated a statistically significant difference between the root canal filling techniques and the root thirds (p<0.05). For percent penetration, Tukey’s test showed that the vertical compaction (91.77±13.51), lateral condensation (89.18±10.91) and modified Tagger hybrid (87.53±15.42) presented the highest values, which significantly differed (p<0.05) from those of the single cone (78.19±22.46). For bond strength (MPa), lateral condensation (3.42±0.54) and vertical compaction (3.47±0.53) had the highest values (p<0.05), while the modified Tagger hybrid (2.19±0.41) and single cone (0.54±0.21) had the lowest. In conclusion, the lateral condensation, vertical compaction and Modified Tagger’s hybrid techniques resulted in greater penetration and bond strength to the intra-radicular dentin.

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Influence of Blood Contamination on Push-Out Bond Strength of Three Calcium Silicate-Based Materials to Root Dentin

Applied Sciences ◽

10.3390/app11156849 ◽

2021 ◽

Vol 11 (15) ◽

pp. 6849

Author(s):

Cristina Rodrigues Paulo ◽

Joana A. Marques ◽

Diana B. Sequeira ◽

Patrícia Diogo ◽

Rui Paiva ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Calcium Silicate ◽

Fracture Pattern ◽

Permanent Teeth ◽

Apical Region ◽

Blood Contamination ◽

Root Canal Filling ◽

Significance Level ◽

Push Out

A proper bond between root canal filling materials and dentin surface is essential to resist dislodgement and guarantee long-term success. Blood exposure is likely to occur in various clinical situations in which calcium silicate-based materials are used; therefore, it is fundamental to render data concerning the influence of blood on bond strength. The present study aims to evaluate the effect of blood contamination on the push-out bond strength obtained with three different biomaterials to root canal dentin; Ninety extracted human mono-radicular permanent teeth were selected. The root canals were prepared with Gates Glidden burs until a diameter of 1.10 mm was achieved. Teeth were then randomly divided into six experimental groups (n = 15) according to the presence/absence of blood contamination and biomaterial used for root canal filling (ProRoot® MTA, BiodentineTM, and TotalFill® BC Putty). After one week, each root was sectioned in three segments (coronal, middle, and apical regions). Specimens were then submitted to push-out bond strength tests. Fracture pattern evaluation was performed. The significance level was set at 5%.; Blood contamination did not affect the push-out bond strength of any of the three tested calcium silicate-based cements (p > 0.05). Regardless of blood contamination, TotalFill showed statistically higher push-out bond strength when compared with Biodentine (p = 0.040) and MTA (p = 0.004). Biodentine exhibited higher bond strength than MTA (p = 0.043). Biomaterials’ comparison within each radicular segment revealed statistically superior bond strength of both Biodentine and TotalFill over MTA (p < 0.05) in the coronal segment. TotalFill presented higher push-out bond strength regarding the apical segment compared to Biodentine (p = 0.003). Fractures were mostly adhesive.; Overall results indicate TotalFill presents the highest push-out bond strength values, followed by Biodentine and, lastly, MTA. Blood contamination did not affect the dislodgement resistance. Biomaterials’ comparison within each radicular segment revealed both TotalFill and Biodentine as the preferable alternatives for application in the coronal region. TotalFill might be the biomaterial of choice for placement in the apical region.

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PUSH OUT BOND STRENGTH OF ROOT CANAL FILLING WITH EPOXY RESIN-BASED, MTA-BASED AND BIOCERAMIC-BASED ENDODONTIC SEALERS

Egyptian Dental Journal ◽

10.21608/edj.2018.78416 ◽

2018 ◽

Vol 64 (2) ◽

pp. 1707-1718

Author(s):

Soliman Kamha ◽

Howida Enan

Keyword(s):

Bond Strength ◽

Epoxy Resin ◽

Root Canal ◽

Root Canal Filling ◽

Endodontic Sealers ◽

Push Out

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The effect of combined use of chitosan and PIPS on push-out bond strength of root canal filling materials

Journal of Adhesion Science and Technology ◽

10.1080/01694243.2016.1173392 ◽

2016 ◽

Vol 30 (18) ◽

pp. 2024-2031 ◽

Cited By ~ 2

Author(s):

Ugur Aydin ◽

Fatih Aksoy ◽

Samet Tosun ◽

Abdul Semih Ozsevik

Keyword(s):

Bond Strength ◽

Root Canal ◽

Root Canal Filling ◽

Filling Materials ◽

Root Canal Filling Materials ◽

Combined Use ◽

Push Out

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The influence of different root canal irrigants on the push-out bond strength of AH plus and Bioceramic sealers

Journal of Baghdad College of Dentistry ◽

10.26477/jbcd.v33i2.2935 ◽

2021 ◽

Vol 33 (2) ◽

pp. 21-29

Author(s):

Alaa M Naeem ◽

Iman M Al-Zaka

Keyword(s):

Bond Strength ◽

Root Canal ◽

Ethylenediaminetetraacetic Acid ◽

Testing Machine ◽

Mean Value ◽

Root Canal Filling ◽

Root Canal Irrigants ◽

Significant Difference ◽

Ah Plus ◽

Push Out

Background: The bond strength of endodontic sealers with dentin is a very important property for maintaining the integrity and seal of the root canal filling. The aim of this study was to evaluate and compare the effect of various irrigants (QMix, 17% EDTA and 2.5% NaOCl) on the push-out bond strength of AH plus and Bioceramic sealers. Materials and methods: Forty eight freshly extracted maxillary first molars human teeth with striaght palatal root were used in the study. The collected samples were randomly divided into three groups of equal sample size (n=16), according to the final irrigation regimen as follows: Group (1): QMix 2 in 1, Group (2): 17% ethylenediaminetetraacetic acid, Group (3): 2.5% sodium hypochloride. All samples were instrumented using Edge file X7 rotary instrument reaching file size 40/.04 as the final master apical file. After that each group was randomly divided into two subgroups (n=8) according to the type of sealer used: AH Plus and Total Fill BC Sealer. Obturation was conducted using single cone technique with gutta percha (GP) to all experimental roots. Two-millimeter thick slices were obtained from the middle section of the root. Bond strength of sealers was measured via a universal testing machine by using stainless steel plunger. Then, the data were statistically evaluated using two-way analysis of variance (ANOVA) and post hoc test (Bonferroni’s test). Results: The push-out bond strength was significantly increased by the “irrigant” factor (P≤0.05) and by “sealer/irrigation solution” interaction (P≤0.05). Final rinse with QMix solution with BC sealer showed the highest mean value of bond strength (5.976 MPa), with a significant difference with other groups (P≤0.05), while NaOCl with AH Plus sealer showed the lowest mean value of bond strength (3.811 MPa). Conclusion: Final irrigation of the root canals with different irrigants improved the endodontic sealer's bond strength, and QMix had a positive influence on the adhesion of BC sealer.

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Effect of different final irrigation solutions on push-out bond strength of root canal filling material

Dental Journal (Majalah Kedokteran Gigi) ◽

10.20473/j.djmkg.v53.i4.p181-186 ◽

2020 ◽

Vol 53 (4) ◽

pp. 181

Author(s):

R. Rahmatillah ◽

Isyana Erlita ◽

Buyung Maglenda

Keyword(s):

Bond Strength ◽

Root Canal ◽

Smear Layer ◽

Filling Material ◽

Bonding Mechanism ◽

Root Canal Filling ◽

Significant Difference ◽

Irrigation Solution ◽

Bonferroni Test ◽

Push Out

Background: The adhesion of root canal filling material to dentin is one of the crucial factors in determining the success of endodontic treatment. However, the smear layer that forms during instrumentation serves as an interface that impedes the bonding mechanism of the filling material. A proper irrigation solution is required to remove the smear layer and provide a dentin surface that supports the bonding mechanism of the filling material in establishing good adhesion. Purpose: This study aims to evaluate and compare the bond strength of filling material with different final irrigation solutions. Methods: Mandibular premolars were prepared by a crown down, pressure-less technique and divided into three final irrigation groups (2.5% NaOCl, 17% EDTA and 20% citric acid). The root canal of each tooth was obturated using epoxy sealer and gutta-percha. A two-millimetre-thick section of the apical third portion of each group was arranged for the push-out assessment using a universal testing machine in an apical to coronal direction at 1 mm/min crosshead speed. Results: A one-way ANOVA test indicated the difference in push-out bond strength among the groups (p<0.05). A post hoc Bonferroni test presented a statistically significant difference in the bond-strength value between the 2.5% NaOCl group compared with the 20% CA group (p<0.05). Conclusion: The push-out bond strength of root canal filling material is increased by applying a chelating agent as the final irrigation solution where 20% of CA presents the highest push-out bond strength.

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Push-Out Bond Strength, Characterization, and Ion Release of Premixed and Powder-Liquid Bioceramic Sealers with or without Gutta-Percha

Scanning ◽

10.1155/2021/6617930 ◽

2021 ◽

Vol 2021 ◽

pp. 1-12

Author(s):

Cristina Retana-Lobo ◽

Mario Tanomaru-Filho ◽

Juliane Maria Guerreiro-Tanomaru ◽

Marianella Benavides-García ◽

Erick Hernández-Meza ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Calcium Ion ◽

Ion Release ◽

Root Canal Filling ◽

Human Teeth ◽

Gutta Percha ◽

Single Cone ◽

Strength Characterization ◽

Push Out

Objective. To evaluate the push-out bond strength of premixed and powder-liquid bioceramic sealers with or without gutta-percha (GP) cone. Materials and Methods. Radicular dentin samples were prepared from 80 single-rooted human teeth. After root canal preparation using ProTaper® and irrigation with NaOCl and EDTA, teeth were divided according to the root canal sealer ( n = 20 ): AH Plus®, EndoSequence® BC Sealer™, ProRoot® Endo Sealer, and BioRoot™ RCS. Samples were randomly divided into two subgroups ( n = 10 ): GP-S: root canal filling using the single-cone technique, or S: filling with only sealer. Specimens were kept at 37°C and 100% humidity in calcium-free PBS for 30 days. The push-out bond strength was measured in MPa. Fractured specimens were observed at 25x to evaluate the type of failure. pH and calcium ion release were measured at different experimental periods. Raman and SEM-EDAX analyses were performed for root canal sealers. Data were analysed using three-way analysis of variance (ANOVA) and post hoc Tukey test at a significance of P < 0.05 . Results. Push-out bond strength was greater for samples obturated with only sealers (S) than samples obturated with the single-cone technique (GP-S) ( P < 0.05 ). BioRoot™ RCS had greater bond strength than EndoSequence® BC Sealer™. Adhesive failures between cement and gutta-percha cone (87.5%) were predominant in the GP-S. Cohesive failures were predominant for S (80%). BioRoot™ RCS and ProRoot® ES presented higher alkalinization potential than the premixed sealer (EndoSequence® BC Sealer™). Powder-liquid bioceramic sealers (BioRoot™ RCS and ProRoot® ES) released the highest cumulative amount of calcium (28.46 mg/L and 20.05 mg/L). Conclusion. Push-out test without gutta-percha cone presents higher bond strength for bioceramic sealers. Powder-liquid calcium silicate-based sealers present greater bioactivity related to alkalinization potential and calcium ion release.

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