Push-out Bond Strength and Dentinal Tubule Penetration of Different Root Canal Sealers Used with Coated Core Materials

Overview

Journal Restor Dent Endod

Date 2016 May 21

PMID 27200279

Citations 11

Authors

Derya Deniz Sungur

Nuhan Purali

Erdal Cosgun

Semra Calt

Affiliations

Soon will be listed here.

Abstract

Objectives: The aim of this study was to compare the push-out bond strength and dentinal tubule penetration of root canal sealers used with coated core materials and conventional gutta-percha.

Materials And Methods: A total of 72 single-rooted human mandibular incisors were instrumented with NiTi rotary files with irrigation of 2.5% NaOCl. The smear layer was removed with 17% ethylenediaminetetraacetic acid (EDTA). Specimens were assigned into four groups according to the obturation system: Group 1, EndoRez (Ultradent Product Inc.); Group 2, Activ GP (Brasseler); Group 3, SmartSeal (DFRP Ltd. Villa Farm); Group 4, AH 26 (Dentsply de Trey)/gutta-percha (GP). For push-out bond strength measurement, two horizontal slices were obtained from each specimen (n = 20). To compare dentinal tubule penetration, remaining 32 roots assigned to 4 groups as above were obturated with 0.1% Rhodamine B labeled sealers. One horizontal slice was obtained from the middle third of each specimen (n = 8) and scanned under confocal laser scanning electron microscope. Tubule penetration area, depth, and percentage were measured. Kruskall-Wallis test was used for statistical analysis.

Results: EndoRez showed significantly lower push-out bond strength than the others (p < 0.05). No significant difference was found amongst the groups in terms of percentage of sealer penetration. SmartSeal showed the least penetration than the others (p < 0.05).

Conclusions: The bond strength and sealer penetration of resin-and glass ionomer-based sealers used with coated core was not superior to resin-based sealer used with conventional GP. Dentinal tubule penetration has limited effect on bond strength. The use of conventional GP with sealer seems to be sufficient in terms of push-out bond strength.

Citing Articles

In Vitro Microscopical and Microbiological Assessment of the Sealing Ability of Calcium Silicate-Based Root Canal Sealers.

Huth K, Wuersching S, Benz L, Kist S, Kollmuss M J Funct Biomater. 2024; 15(11).

PMID: 39590544 PMC: 11595059. DOI: 10.3390/jfb15110341.

Comparative evaluation of dentinal tubule penetration and push-out bond strength of new injectable hydraulic calcium disilicate based root canal sealer: A single blinded in vitro study.

Verma A, Arora A, Taneja S J Oral Biol Craniofac Res. 2024; 14(2):143-151.

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Scanning Electron Microscopy Analysis of the Intratubular Radicular Dentin Penetration of Calcium Hydroxide, Triple Antibiotic Paste, and Nitrofurantoin.

Khanvilkar U, Pawar S, Bandekar S, Dhok V, Arora S, Pawar A J Pers Med. 2023; 13(11).

PMID: 38003869 PMC: 10672212. DOI: 10.3390/jpm13111554.

Influence of access cavity design on calcium hydroxide removal using different cleaning protocols: a confocal laser scanning microscopy study.

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Physicomechanical Properties of Tertiary Monoblock in Endodontics: A Systematic Review and Meta-analysis.

Pereira T, Piva E, de Oliveira da Rosa W, da Silva Nobreza A, Pivatto K, Fabio Aranha A Iran Endod J. 2023; 16(3):139-149.

PMID: 36704399 PMC: 9735254. DOI: 10.22037/iej.v16i3.26787.

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