Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study

Detalhes bibliográficos
Autor(a) principal: Magalhães, Tiago
Data de Publicação: 2023
Outros Autores: Fidalgo-Pereira, Rita, Torres, Orlanda, Carvalho, Óscar, Silva, Filipe S., Henriques, Bruno, Özcan, Mutlu, Souza, Júlio C. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.14/40896
Resumo: Purpose: This study aimed to assess the layer thickness and microstructure of traditional resin-matrix cements and flowable resin-matrix composites at dentin and enamel to composite onlay interfaces after cementation on low loading magnitude. Materials and Methods: Twenty teeth were prepared and conditioned with an adhesive system for restoration with resin-matrix composite onlays manufactured by CAD-CAM. On cementation, tooth-to-onlay assemblies were distributed into four groups, including two traditional resin-matrix cements (groups M and B), one flowable resin-matrix composite (group G), and one thermally induced flowable composite (group V). After the cementation procedure, assemblies were cross-sectioned for inspection by optical microscopy at different magnification up to ×1000. Results: The layer thickness of resin-matrix cementation showed the highest mean values at around 405 µm for a traditional resin-matrix cement (group B). The thermally induced flowable resin-matrix composites showed the lowest layer thickness values. The resin-matrix layer thickness revealed statistical differences between traditional resin cement (groups M and B) and flowable resin-matrix composites (groups V and G) (p < 0.05). However, the groups of flowable resin-matrix composites did not reveal statistical differences (p < 0.05). The thickness of the adhesive system layer at around 7 µm and 12 µm was lower at the interfaces with flowable resin-matrix composites when compared to the adhesive layer at resin-matrix cements, which ranged from 12 µm up to 40 µm. Conclusions: The flowable resin-matrix composites showed adequate flowing even though the loading on cementation was performed at low magnitude. Nevertheless, significant variation in thickness of the cementation layer was noticed for flowable resin-matrix composites and traditional resin-matrix cements that can occur in chair-side procedures due to the clinical sensitivity and differences in rheological properties of the materials.
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spelling Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro studyCementationDentinOnlayResin cementResin compositePurpose: This study aimed to assess the layer thickness and microstructure of traditional resin-matrix cements and flowable resin-matrix composites at dentin and enamel to composite onlay interfaces after cementation on low loading magnitude. Materials and Methods: Twenty teeth were prepared and conditioned with an adhesive system for restoration with resin-matrix composite onlays manufactured by CAD-CAM. On cementation, tooth-to-onlay assemblies were distributed into four groups, including two traditional resin-matrix cements (groups M and B), one flowable resin-matrix composite (group G), and one thermally induced flowable composite (group V). After the cementation procedure, assemblies were cross-sectioned for inspection by optical microscopy at different magnification up to ×1000. Results: The layer thickness of resin-matrix cementation showed the highest mean values at around 405 µm for a traditional resin-matrix cement (group B). The thermally induced flowable resin-matrix composites showed the lowest layer thickness values. The resin-matrix layer thickness revealed statistical differences between traditional resin cement (groups M and B) and flowable resin-matrix composites (groups V and G) (p < 0.05). However, the groups of flowable resin-matrix composites did not reveal statistical differences (p < 0.05). The thickness of the adhesive system layer at around 7 µm and 12 µm was lower at the interfaces with flowable resin-matrix composites when compared to the adhesive layer at resin-matrix cements, which ranged from 12 µm up to 40 µm. Conclusions: The flowable resin-matrix composites showed adequate flowing even though the loading on cementation was performed at low magnitude. Nevertheless, significant variation in thickness of the cementation layer was noticed for flowable resin-matrix composites and traditional resin-matrix cements that can occur in chair-side procedures due to the clinical sensitivity and differences in rheological properties of the materials.Veritati - Repositório Institucional da Universidade Católica PortuguesaMagalhães, TiagoFidalgo-Pereira, RitaTorres, OrlandaCarvalho, ÓscarSilva, Filipe S.Henriques, BrunoÖzcan, MutluSouza, Júlio C. M.2023-04-19T15:26:24Z2023-03-072023-03-07T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/40896eng2079-498310.3390/jfb1403014885151166611PMC1005862536976072info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-12T17:46:27Zoai:repositorio.ucp.pt:10400.14/40896Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:33:34.918844Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
title Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
spellingShingle Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
Magalhães, Tiago
Cementation
Dentin
Onlay
Resin cement
Resin composite
title_short Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
title_full Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
title_fullStr Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
title_full_unstemmed Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
title_sort Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
author Magalhães, Tiago
author_facet Magalhães, Tiago
Fidalgo-Pereira, Rita
Torres, Orlanda
Carvalho, Óscar
Silva, Filipe S.
Henriques, Bruno
Özcan, Mutlu
Souza, Júlio C. M.
author_role author
author2 Fidalgo-Pereira, Rita
Torres, Orlanda
Carvalho, Óscar
Silva, Filipe S.
Henriques, Bruno
Özcan, Mutlu
Souza, Júlio C. M.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Veritati - Repositório Institucional da Universidade Católica Portuguesa
dc.contributor.author.fl_str_mv Magalhães, Tiago
Fidalgo-Pereira, Rita
Torres, Orlanda
Carvalho, Óscar
Silva, Filipe S.
Henriques, Bruno
Özcan, Mutlu
Souza, Júlio C. M.
dc.subject.por.fl_str_mv Cementation
Dentin
Onlay
Resin cement
Resin composite
topic Cementation
Dentin
Onlay
Resin cement
Resin composite
description Purpose: This study aimed to assess the layer thickness and microstructure of traditional resin-matrix cements and flowable resin-matrix composites at dentin and enamel to composite onlay interfaces after cementation on low loading magnitude. Materials and Methods: Twenty teeth were prepared and conditioned with an adhesive system for restoration with resin-matrix composite onlays manufactured by CAD-CAM. On cementation, tooth-to-onlay assemblies were distributed into four groups, including two traditional resin-matrix cements (groups M and B), one flowable resin-matrix composite (group G), and one thermally induced flowable composite (group V). After the cementation procedure, assemblies were cross-sectioned for inspection by optical microscopy at different magnification up to ×1000. Results: The layer thickness of resin-matrix cementation showed the highest mean values at around 405 µm for a traditional resin-matrix cement (group B). The thermally induced flowable resin-matrix composites showed the lowest layer thickness values. The resin-matrix layer thickness revealed statistical differences between traditional resin cement (groups M and B) and flowable resin-matrix composites (groups V and G) (p < 0.05). However, the groups of flowable resin-matrix composites did not reveal statistical differences (p < 0.05). The thickness of the adhesive system layer at around 7 µm and 12 µm was lower at the interfaces with flowable resin-matrix composites when compared to the adhesive layer at resin-matrix cements, which ranged from 12 µm up to 40 µm. Conclusions: The flowable resin-matrix composites showed adequate flowing even though the loading on cementation was performed at low magnitude. Nevertheless, significant variation in thickness of the cementation layer was noticed for flowable resin-matrix composites and traditional resin-matrix cements that can occur in chair-side procedures due to the clinical sensitivity and differences in rheological properties of the materials.
publishDate 2023
dc.date.none.fl_str_mv 2023-04-19T15:26:24Z
2023-03-07
2023-03-07T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.14/40896
url http://hdl.handle.net/10400.14/40896
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2079-4983
10.3390/jfb14030148
85151166611
PMC10058625
36976072
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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