Bond strength to root dentin and fluid filtration test of AH Plus/gutta-percha, EndoREZ and RealSeal systems

Mahdi, Alaa Abdul; Bolaños-Carmona, Victoria; González-López, Santiago

doi:10.1590/1678-775720130114

Cited by 12 publications

(12 citation statements)

References 33 publications

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“…A probable explanation could be the high c-factor (ratio of bonded to unbounded resin surfaces) seen in root canals, which concentrates high polymerization stresses between resin-based materials and the canal walls; these stresses may exceed the bond strength of adhesives to dentin, resulting in gap formation along the surfaces [20] . This finding confirmed those of previous studies [9][10][11]21] which showed that EndoREZ ® has low push-out bond strength. The push-out bond strength of G4 and G5 decreased further at 3 months compared to 2 weeks after obturation and remained the lowest in bond strength among all groups.…”

Section: Discussionsupporting

confidence: 93%

An in vitro Comparison of Bond Strength of Different Sealers/Obturation Systems to Root Dentin Using the Push-Out Test at 2 Weeks and 3 Months after Obturation

Yap

Aziz²,

Azami³

et al. 2017

Med Princ Pract

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Objective: To evaluate the push-out bond strength and failure modes of different sealers/obturation systems to intraradicular dentin at 2 weeks and 3 months after obturation compared to AH Plus®/gutta-percha. Materials and Methods: A total of 180 root slices from 60 single-canal anterior teeth were prepared and assigned to 5 experimental groups (n = 36 in each group), designated as G1 (AH Plus®/gutta-percha), G2 (TotalFill BC™ sealer/BC-coated gutta-percha), G3 (TotalFill BC™ sealer/gutta-percha), G4 (EndoREZ® sealer/EndoREZ®-coated gutta-percha), and G5 (EndoREZ® sealer/gutta-percha). Push-out bond strengths of 18 root slices in each group were assessed at 2 weeks and the other 18 at 3 months after obturation using a universal testing machine. Data were analyzed using repeated measures ANOVA. An independent t test was used to compare the mean push-out bond strength for each group at 2 weeks and 3 months after obturation. Results: The mean push-out bond strengths of G4 and G5 were significantly lower than those of G1, G2, and G3 (p < 0.05) at both 2 weeks (G1: 1.46 ± 0.29 MPa, G2: 1.74 ± 0.43 MPa, G3: 1.74 ± 0.43 MPa, G4: 0.66 ± 0.31 MPa, G5: 0.74 ± 0.47 MPa) and 3 months after obturation (G1: 1.70 ± 1.05 MPa, G2: 3.69 ± 1.20 MPa, G3: 2.84 ± 0.83 MPa, G4: 0.14 ± 0.05 MPa, G5: 0.24 ± 0.10 MPa). The mean push-out bond strengths of G2 (3.69 ± 1.20 MPa) and G3 (2.84 ± 0.83 MPa) were higher at 3 months compared to 2 weeks after obturation (G2: 1.74 ± 0.43 MPa, G3: 1.33 ± 0.29 MPa). Conclusion: The TotalFill BC™ obturation system (G2) and the TotalFill BC™ sealer/gutta-percha (G3) showed comparable bond strength to AH Plus®. Their bond strength increased over time, whereas the EndoREZ® obturation system (G4) and EndoREZ sealer (G5) had low push-out bond strength which decreased over time.

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Section: Discussionsupporting

confidence: 93%

An in vitro Comparison of Bond Strength of Different Sealers/Obturation Systems to Root Dentin Using the Push-Out Test at 2 Weeks and 3 Months after Obturation

Yap

Aziz²,

Azami³

et al. 2017

Med Princ Pract

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“…5,6,7,8,9 In the present study, the bond strength performance of single matched-taper gutta-percha cone techniques of reciprocating NiTi systems with different sealers was evaluated and compared with that of the lateral compaction technique. The results demonstrated that the bond strength of the filling material to the root canal is dependent on both the filling technique and the sealer.…”

Section: Discussionmentioning

confidence: 99%

“…5,6,7,8,9 Methacrylate resin-self-adhesive sealers such as Epiphany SE (Pentron Clinical Technologies, Wallingford, USA) and its successor RealSeal SE (Sybron Endo, Glendora, USA) were developed to improve the root filling bonding to the root dentin. 10 However, controversial results have been reported with respect to the adhesiveness of these sealers.…”

Section: 2mentioning

confidence: 99%

“…10 However, controversial results have been reported with respect to the adhesiveness of these sealers. 7,11,12 MTA Fillapex (Angelus, Londrina, Brazil) is a new calcium silicate-based sealer presenting low solubility and disintegration, 13 and good flow 3 and alkaline pH, 14 but it has a reduced bond strength when compared with AH Plus. 15,16 In addition to RCS, the root filling technique also may affect the quality of the bonding between the filling mass and the root dentin.…”

Section: 2mentioning

confidence: 99%

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Root filling bond strength using reciprocating file-matched single-cones with different sealers

et al. 2016

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The aim of the present study was to evaluate the bond strength (BS) of root canal fillings to root dentin using the reciprocating file-matched single-cone or lateral compaction techniques with resin-based and calcium-silicate-based sealers. Maxillary canine roots were prepared and filled using one of the following approaches: Reciproc R40 file and R40 single cone, WaveOne Large file and Large single cone, or ProTaper up to F4 file with lateral compaction. The root filling was performed using AH Plus, Epiphany SE or MTA Fillapex (n = 10). Three 1-mm-thick slices were obtained from each third of each root. Two slices were subjected to a push-out test, and the other slices were prepared for scanning electron microscopy (SEM) to examine the dentin-sealer interface. Data (in MPa) from the push-out tests were analyzed using a two-way ANOVA and Tukey's test (p < 0.05). Failure modes (adhesive, cohesive or mixed) were evaluated at ×25 magnification. The single-cone techniques resulted in lower BS values than the lateral compaction technique. For lateral compaction, AH Plus and Epiphany SE showed the highest and lowest BS values, respectively. Slight differences were observed between sealers when the single-cone techniques were used. A tendency to reduce the BS toward the apical third was observed. Adhesive failures were predominant for all experimental conditions. A closer adaption of the filling material on the root dentin was observed for the AH Plus and lateral compaction techniques. The Reciproc and WaveOne techniques were associated with lower BS values than the lateral compaction technique. However, the effect of the root canal filling technique appears to be sealer-dependent.

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“…Hand instrumentation technique was used to prepare the root canals because it is still widely used throughout the world (18) . Smear layer was removed with 1 ml of 17% EDTA used for 1 min which increase the penetration of the sealer into the dentinal tubules, and its mechanical interlocking to the canal walls (6) .…”

Section: Discussionmentioning

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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Bond strength to root dentin and fluid filtration test of AH Plus/gutta-percha, EndoREZ and RealSeal systems

Cited by 12 publications

References 33 publications

An in vitro Comparison of Bond Strength of Different Sealers/Obturation Systems to Root Dentin Using the Push-Out Test at 2 Weeks and 3 Months after Obturation

An in vitro Comparison of Bond Strength of Different Sealers/Obturation Systems to Root Dentin Using the Push-Out Test at 2 Weeks and 3 Months after Obturation

Root filling bond strength using reciprocating file-matched single-cones with different sealers

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

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