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Article: Three-dimensional quantitative porosity characterization of syringe- versus hand-mixed set epoxy resin root canal sealer
Title | Three-dimensional quantitative porosity characterization of syringe- versus hand-mixed set epoxy resin root canal sealer |
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Authors | |
Keywords | Syringe-mix Epoxy resin sealer Hand-mix Micro-CT Porosity |
Issue Date | 2015 |
Citation | Brazilian Dental Journal, 2015, v. 26, n. 6, p. 607-611 How to Cite? |
Abstract | © 2015, Associacao Brasileira de Divulgacao Cientifica. All rights reserved.The aim of the present study was to compare the porosity characteristics of AH Plus Jet™ syringe-mix and the conventional hand-mixed AH Plus root canal sealers by three-dimensional quantitative high-resolution micro-computed tomography (micro-CT). Seven test specimens were prepared from each tested sealer by a single operator following the manufacturer’s instructions and poured into pre-lubricated plastic split-ring moulds. Set sealer test specimens were scanned using a micro-CT device and the shadow images were reconstructed into cross-sectional slices. The evaluated parameters were (i) total pore count, (ii) total pore volume and mean pore volume, (iii) total porosity (% of pore volume in relation to total sealer volume) and (iv) mean pore distance to the sealer lateral external surface. In both groups, most pores were localized within the external sealer perimeter (0.05 mm from the external surface). Hand-mixed AH Plus specimens showed statistically significant higher mean total pore count, total pore volume and total porosity (p=0.001) than the syringe-mixed specimens. However, mean pore sizes in AH Plus syringe-mixed specimens were significantly higher (p=0.046) than the AH Plus hand-mixed counterparts. Hand-mixed AH Plus was associated with higher total mean pore count, volume and total porosity compared to syringe mixed AH Plus. |
Persistent Identifier | http://hdl.handle.net/10722/235953 |
ISSN | 2023 SCImago Journal Rankings: 0.406 |
DC Field | Value | Language |
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dc.contributor.author | De-Deus, Gustavo | - |
dc.contributor.author | Scelza, Miriam Z. | - |
dc.contributor.author | Neelakantan, Prasanna | - |
dc.contributor.author | Sharma, Subash | - |
dc.contributor.author | Neves, Aline de Almeida | - |
dc.contributor.author | Silva, Emmanuel João Nogueira Leal | - |
dc.date.accessioned | 2016-11-10T07:11:48Z | - |
dc.date.available | 2016-11-10T07:11:48Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Brazilian Dental Journal, 2015, v. 26, n. 6, p. 607-611 | - |
dc.identifier.issn | 0103-6440 | - |
dc.identifier.uri | http://hdl.handle.net/10722/235953 | - |
dc.description.abstract | © 2015, Associacao Brasileira de Divulgacao Cientifica. All rights reserved.The aim of the present study was to compare the porosity characteristics of AH Plus Jet™ syringe-mix and the conventional hand-mixed AH Plus root canal sealers by three-dimensional quantitative high-resolution micro-computed tomography (micro-CT). Seven test specimens were prepared from each tested sealer by a single operator following the manufacturer’s instructions and poured into pre-lubricated plastic split-ring moulds. Set sealer test specimens were scanned using a micro-CT device and the shadow images were reconstructed into cross-sectional slices. The evaluated parameters were (i) total pore count, (ii) total pore volume and mean pore volume, (iii) total porosity (% of pore volume in relation to total sealer volume) and (iv) mean pore distance to the sealer lateral external surface. In both groups, most pores were localized within the external sealer perimeter (0.05 mm from the external surface). Hand-mixed AH Plus specimens showed statistically significant higher mean total pore count, total pore volume and total porosity (p=0.001) than the syringe-mixed specimens. However, mean pore sizes in AH Plus syringe-mixed specimens were significantly higher (p=0.046) than the AH Plus hand-mixed counterparts. Hand-mixed AH Plus was associated with higher total mean pore count, volume and total porosity compared to syringe mixed AH Plus. | - |
dc.language | eng | - |
dc.relation.ispartof | Brazilian Dental Journal | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Syringe-mix | - |
dc.subject | Epoxy resin sealer | - |
dc.subject | Hand-mix | - |
dc.subject | Micro-CT | - |
dc.subject | Porosity | - |
dc.title | Three-dimensional quantitative porosity characterization of syringe- versus hand-mixed set epoxy resin root canal sealer | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1590/0103-6440201300074 | - |
dc.identifier.scopus | eid_2-s2.0-84954068968 | - |
dc.identifier.volume | 26 | - |
dc.identifier.issue | 6 | - |
dc.identifier.spage | 607 | - |
dc.identifier.epage | 611 | - |
dc.identifier.eissn | 1806-4760 | - |
dc.identifier.issnl | 0103-6440 | - |