Apical adaptation, sealing ability and push-out bond strength of five root-end filling materials

Apical adaptation, sealing ability and push-out bond strength of five root-end filling materials

This study compared the fluid filtration, adaptation to the root canal walls, and the push-out bond strength of two resin-based sealers and three calcium silicate-based retrograde filling materials. Fifty maxillary canines were shaped using manual instruments and the apical portion was sectioned. Re...

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Bibliographic Details
Published in:Brazilian oral research Vol. 28; no. 1; pp. 1 - 6
Main Authors: Amoroso-Silva, Pablo Andrés, Marciano, Marina Angélica, Guimarães, Bruno Martini, Duarte, Marco Antonio Hungaro, Sanson, Ana Flavia, Moraes, Ivaldo Gomes de
Format: Journal Article
Language:English
Published: Brazil Sociedade Brasileira de Pesquisa Odontológica - SBPqO 2014
Sociedade Brasileira de Pesquisa Odontológica
Subjects:
Aluminum Compounds - chemistry
Analysis of Variance
Bismuth - chemistry
Calcium Compounds - chemistry
Calcium Hydroxide - chemistry
Dental Bonding
Dental Bonding - methods
Dental Leakage
Dental Leakage - prevention & control
Dental Marginal Adaptation
Dentistry
DENTISTRY, ORAL SURGERY & MEDICINE
Drug Combinations
Endodontics
Humans
Materials Testing
Oxides - chemistry
Reproducibility of Results
Resin Cements - chemistry
Retrograde Obturation
Retrograde Obturation - instrumentation
Retrograde Obturation - methods
Root Canal Filling Materials
Root Canal Filling Materials - chemistry
Silicates - chemistry
Time Factors
Tungsten Compounds - chemistry
Zirconium - chemistry
Endodontics
Dental Bonding
Root Canal Filling Materials
Dental Leakage
Retrograde Obturation
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Summary:This study compared the fluid filtration, adaptation to the root canal walls, and the push-out bond strength of two resin-based sealers and three calcium silicate-based retrograde filling materials. Fifty maxillary canines were shaped using manual instruments and the apical portion was sectioned. Retrograde cavities of 3-mm depth were prepared. The specimens were divided into five groups (n = 10): Sealer 26 (S26); MBPc (experimental); MTA; Portland cement with 20% zirconium oxide (PC/ZO), and Portland cement with 20% calcium tungstate (PC/CT). The fluid filtration was measured at 7 and 15 days. To evaluate the interfacial adaptation, sections of the teeth, 1 and 2 mm from the apex, were prepared and the percentage of gaps was calculated. The push-out bond strength at 2 mm from the apex was evaluated. Statistical analysis was performed using the ANOVA/Tukey's test (p < 0.05). At 7 and 15 days (p = 0.0048, p = 0.006), the PC/CT group showed higher fluid filtration values when compared to other groups. At 1 mm from the apex, no statistical differences in the adaptation were found among the cements (p = 0.44). At 2 mm from the apex, the PC/ZO group presented statistically lower percentage of gaps than S26, MBPc, and MTA (p = 0.0007). The MBPc group showed higher push-out bond strength than other cements evaluated (p = 0.0008). The fluid filtration and interfacial adaptation of the calcium silicate-based cements were similar to those of the resin-based cements. The resinous cement MBPc showed superior push-out bond strength.
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ISSN:1806-8324
1807-3107
1807-3107
DOI:10.1590/1807-3107BOR-2014.vol28.0043