Effect of ultrasonic and sonic activation of root canal sealers on the push‐out bond strength and interfacial adaptation to root canal dentine

Wiesse, P. E. B.; Silva-Sousa, Yara Teresinha Corrêa; Pereira, Rodrigo Dantas; Estrela, Carlos; Domingues, LG; Pécora, J D; Sousa-Neto, Manoel Damião

doi:10.1111/iej.12794

Cited by 59 publications

(82 citation statements)

References 42 publications

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“…Therefore, the cements were ultrasonically activated for 2 s in the present study. In terms of dentinal tubule penetration, previous studies showed greater dentinal tubule penetration of ultrasonically activated root canal sealers than the current study (Guimarães et al, 2014;Wiesse et al, 2018). Ultrasonic activation did not increase the dentinal tubule penetration of CSCs in the present study.…”

Section: Discussioncontrasting

confidence: 71%

Effect of ultrasonic activation on dentinal tubule penetration of calcium silicate‐based cements

Aksel

Arslan

Puralı

et al. 2019

Microscopy Res & Technique

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This study investigated the dentinal tubule penetration of mineral trioxide aggregate (MTA), NeoMTA Plus and Biodentine placed by either manual condensation or ultrasonic activation in simulated open apex model. Standardized divergent open apex models were created using palatal roots of 60 human maxillary molars and divided into six groups according to the used cements and activation methods (n = 10): MTA‐manual condensation, MTA‐ultrasonic activation, NeoMTA Plus‐manual condensation, NeoMTA Plus‐ultrasonic activation, Biodentine‐manual condensation, Biodentine‐ultrasonic activation. For the measurement of penetration, the cements were mixed with 0.1% Rhodamin B and 6‐mm apical portions of each root canal were obturated in an orthograde direction. The roots were embedded into acrylic blocks, and 1‐mm‐thick sections were obtained at 3 mm from the apex. Specimens were mounted onto glass slides and scanned under a confocal laser scanning microscope (CLSM) and stereomicroscope. Dentinal tubule penetration areas, depth and percentage were measured using LSM and ImageJ software. The data were analyzed using two‐way analysis of variance (anova) with Bonferroni correction (α = 0.05). No correlation was found between stereomicroscope and CLSM analyses (p > .05). CLSM analysis showed no significant differences between MTA, NeoMTA Plus, and Biodentine groups when manual condensation was used (p > .05). Ultrasonic activation did not increase the tubular penetration of MTA, NeoMTA Plus or Biodentine as compared to manual condensation of each material (p > .05). MTA, NeoMTA Plus and Biodentine showed similar tubular penetration when manual condensation was used. Ultrasonic activation of these cements had no effect on tubular penetration of each material as compared to the manual condensation counterparts.

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Section: Discussioncontrasting

confidence: 71%

Effect of ultrasonic activation on dentinal tubule penetration of calcium silicate‐based cements

Aksel

Arslan

Puralı

et al. 2019

Microscopy Res & Technique

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“…1,2 The quality of obturations is directly related to the material and the technique employed. [2][3][4][5][6] Regarding root canal filling techniques, lateral condensation presents some limitations in irregular, flat, and complex root canal systems. 3 4,6,7,9 Recent studies have demonstrated the presence of gaps and voids after the use of different root canal filling techniques.…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4][5][6] Regarding root canal filling techniques, lateral condensation presents some limitations in irregular, flat, and complex root canal systems. 3 4,6,7,9 Recent studies have demonstrated the presence of gaps and voids after the use of different root canal filling techniques. 1,3,4,6 In an attempt to overcome these limitations, some authors have proposed the sonic and ultrasonic activation of sealers causing them to penetrate into the canal, promoting a better adaptation between the sealer and the root canal walls.…”

Section: Introductionmentioning

confidence: 99%

Effect of sonic and ultrasonic activation on physicochemical properties of root canal sealers

et al. 2019

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Objective: To evaluate the effect of ultrasonic and sonic activation on physicochemical properties of AH Plus, MTA Fillapex, ADSeal, GuttaFlow Bioseal, and GuttaFlow 2 sealers. Methodology: Three experimental groups were formed: no activation (NA), ultrasonic activation (UA), and sonic activation (SA). The sealers were manipulated according to the manufacturers' instructions. A 3-mL syringe was adapted to receive 1 mL of sealer. Activation was performed with a 20/.01 ultrasonic insert (20 s/1W) in the UA group. A size 35.04 sonic tip was used (20 s/10,000 cycles/min-1) in the SA group. The molds for physicochemical analysis were filled and evaluated according to ANSI/ADA specification no. 57: setting time (ST), flow (FL), dimensional change (DC), solubility (SB), and radiopacity (RD). Statistical analysis was performed by Kruskal-Wallis, one-way ANOVA, and Tukey's tests (P<0.05). Results: Regarding ST, only AH Plus and GuttaFlow 2 in the NA group met the ANSI/ADA standards. All FL values were greater than 20 mm in diameter, as determined by ANSI/ADA. The tested sealers and protocols did not comply with the ANSI/ADA standards for DC. As for SB, only MTA Fillapex, regardless of the activation protocol, did not follow the ANSI/ADA standards. All of the investigated sealers, regardless of the activation protocol, presented radiographic density higher than 3 mm Al, as proposed by ANSI/ADA. Conclusions: UA and SA promoted changes in the physicochemical properties of the evaluated root canal sealers, mainly in ST and F. Thus, it is important to evaluate the physicochemical properties of endodontic sealers associated with activation techniques prior to clinical application in order to determine whether the properties follow the parameters set by ANSI/ADA, ensuring safety and quality of root canal filling.

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“…However, it was not enough to show statistically significant difference. Studies have observed that these results are related to its capacity to interact chemically with the collagen network and form covalent bonds between the epoxy rings and the amine groups of the exposed collagen (25). Similarly, AH Plus has been associated with long-term stability and efficient cohesion between molecules, increasing its micromechanical retention to the root dentin.…”

Section: Discussionmentioning

confidence: 99%

The Influence of Humidity on Intra-tubular Penetration and Bond Strength of AH Plus and MTA Fillapex: An in Vitro Study

Piazza¹,

Rivera-Peña²,

Alcalde³

et al. 2017

Eur Endod J

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Effect of ultrasonic and sonic activation of root canal sealers on the push‐out bond strength and interfacial adaptation to root canal dentine

Abstract: Ultrasonic activation was associated with higher BS values, deeper intratubular penetration and greater interfacial adaptation to root dentine than sonic activation and no activation techniques, AH Plus had higher BS values than MTA Fillapex irrespective of the type of activation.

Cited by 59 publications

References 42 publications

Effect of ultrasonic activation on dentinal tubule penetration of calcium silicate‐based cements

Effect of ultrasonic activation on dentinal tubule penetration of calcium silicate‐based cements

Effect of sonic and ultrasonic activation on physicochemical properties of root canal sealers

The Influence of Humidity on Intra-tubular Penetration and Bond Strength of AH Plus and MTA Fillapex: An in Vitro Study

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