Design Variability of the Push-out Bond Test in Endodontic Research: A Systematic Review

Brichko, James; Burrow, Michael F.; Parashos, Peter

doi:10.1016/j.joen.2018.05.003

Cited by 25 publications

(31 citation statements)

References 115 publications

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Section: Introductionmentioning

confidence: 99%

“…Push-out bond strength (POBS) tests are well established in the laboratory assessment of characteristics of endodontic sealers [1], irrespective of the clinical applicability of the results [2]. Innumerable protocols have been described in past literature, but so far, no protocol standardization has been achieved [2]. Standard protocols, mostly ISO (International Standard Organization) or ANSI/ADA (American National Standards Institute/American Dental Association) specifications, are available for the most common laboratory investigations of sealers, such as flow, setting-time, radiopacity, and several others, but there are none for POBS investigations [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…Innumerable protocols have been described in past literature, but so far, no protocol standardization has been achieved [2]. Standard protocols, mostly ISO (International Standard Organization) or ANSI/ADA (American National Standards Institute/American Dental Association) specifications, are available for the most common laboratory investigations of sealers, such as flow, setting-time, radiopacity, and several others, but there are none for POBS investigations [2,3]. This creates a difficulty when comparing results of different studies and it also leads to numerous efforts being made to establish new protocols in the hope of creating the optimum accepted model.…”

Section: Introductionmentioning

confidence: 99%

“…According to their systematic review, POBS values were influenced by country and year of publication, use of human or bovine dentine, tooth portion, type of sealer, core material, obturation technique, and testing-machine velocity, as well as the duration of specimen storage [3]. Accordingly, variables such as the ratio of the plunger diameter and the specimen’s obturation diameter [1,4,5], different canal preparation protocols [2], the use of gutta-percha as a core material versus sealer as the sole obturation material [6], and the use of bovine or human dentine [7] have been reported in the literature as affecting the push-out model.…”

Section: Introductionmentioning

confidence: 99%

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Duration of Immersion and Type of Immersion Solution Distort the Outcome of Push-Out Bond Strength Testing Protocols

Donnermeyer

Göbell

Bürklein³

et al. 2019

Materials

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This study aimed to investigate the influence of immersion duration and the type of immersion solution on the outcome of push-out bond strength (POBS) tests. Root canals of 120 straight single-rooted teeth were instrumented to a diameter of 1.5 mm and irrigated with 5 mL of 3% NaOCl. Four horizontal slices with a thickness of 1 mm were cut, representing the mid-portion of the root. The specimens (n = 480) were irrigated with 17% ethylenediaminetetraacetic acid(EDTA) for 60 seconds, then twice with distilled water (DW) for 30 s each. The canals were filled with either AH Plus (Dentsply Sirona, Konstanz, Germany) or BioRoot RCS (Septodont, St. Maur-des-Fossés, France) (n = 240). Separated into four groups per type of sealer (n = 60), the specimens were incubated at 37 °C covered with gauze moistened in DW or phosphate-buffered saline (PBS) for either one or eight weeks. Dislodgement resistance was measured and POBS was calculated. Statistical analysis was performed using the analysis of variance (ANOVA) test and the Student–Newman–Keuls test (p = 0.05). AH Plus showed higher POBS when stored in PBS compared to DW, irrespective of the incubation period (p < 0.05). BioRoot RCS displayed higher POBS when stored in DW compared to PBS after eight weeks of incubation (p < 0.05). No difference was found after one week of incubation (p > 0.05). Irrespective of the sealer or the immersion solution, POBS decreased from one week to eight weeks (p < 0.05). Mixed failure modes were found in all groups irrespective of sealer, immersion medium, or immersion period. POBS decreased after a longer incubation time in both immersion solutions. Duration of immersion and the type of immersion solution had a significant impact on the outcome of the POBS testing protocol.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Duration of Immersion and Type of Immersion Solution Distort the Outcome of Push-Out Bond Strength Testing Protocols

Donnermeyer

Göbell

Bürklein³

et al. 2019

Materials

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“…The size of the cylindrical plunger used in the studies was adjusted to be closest fitting without touching the canal walls and mostly 3 sizes between 0.4 and 1.2 mm, usually in increasing increments of 0.2 mm were chosen [21]. As the hole diameter was 1 mm in the present study, 0.6 mm sized plunger was preferred.…”

Section: Discussionmentioning

confidence: 99%

The push-out bond strength of BIOfactor mineral trioxide aggregate, a novel root repair material

et al. 2019

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Objectives The aim of this in vitro study was to evaluate the push-out bond strength of a novel calcium silicate-based root repair material-BIOfactor MTA to root canal dentin in comparison with white MTA-Angelus (Angelus) and Biodentine (Septodont). Materials and Methods The coronal parts of 12 central incisors were removed and the roots were embedded in acrylic resin blocks. Midroot dentin of each sample was horizontally sectioned into 1.1 mm slices and 3 slices were obtained from each root. Three canal-like standardized holes having 1 mm in diameter were created parallel to the root canal on each dentin slice with a diamond bur. The holes were filled with MTA-Angelus, Biodentine, or BIOfactor MTA. Wet gauze was placed over the specimens and samples were stored in an incubator at 37°C for 7 days to allow complete setting. Then samples were subjected to the push-out test method using a universal test machine with the loading speed of 1 mm/min. Data was statistically analyzed using Friedman test and post hoc Wilcoxon signed rank test with Bonferroni correction. Results There were no significant differences among the push-out bond strength values of MTA-Angelus, Biodentine, and BIOfactor MTA ( p > 0.017). Most of the specimens exhibited cohesive failure in all groups, with the highest rate found in Biodentine group. Conclusions Based on the results of this study, MTA-Angelus, Biodentine, and BIOfactor MTA showed similar resistances to the push-out testing.

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Influence of bioceramic cones on the quality of root canal filling relative to bond strength and adaptation of the adhesive interface

Quaresma,

Alves dos Santos,

Silva-Sousa

et al. 2023

Clin Oral Invest

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Design Variability of the Push-out Bond Test in Endodontic Research: A Systematic Review

Cited by 25 publications

References 115 publications

Duration of Immersion and Type of Immersion Solution Distort the Outcome of Push-Out Bond Strength Testing Protocols

Duration of Immersion and Type of Immersion Solution Distort the Outcome of Push-Out Bond Strength Testing Protocols

The push-out bond strength of BIOfactor mineral trioxide aggregate, a novel root repair material

Influence of bioceramic cones on the quality of root canal filling relative to bond strength and adaptation of the adhesive interface

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