Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Oral Research |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242014000100209 |
Resumo: | The effect of Candida albicans biofilms and methyl methacrylate (MMA) pretreatment on the bond strength between soft denture liners and polymethyl methacrylate (PMMA) resin was analyzed. Specimens were prepared and randomly divided with respect to PMMA pretreatment, soft liner type (silicone-based or PMMA-based), and presence or absence of a C. albicans biofilm. Samples were composed of a soft denture liner bonded between two PMMA bars. Specimens (n = 10) were incubated to produce a C. albicans biofilm or stored in sterile PBS for 12 days. The tensile bond strength test was performed and failure type was determined using a stereomicroscope. Surface roughness (SR) and scanning electron microscopy (SEM) analysis were performed on denture liners (n = 8). Highest bond strength was observed in samples containing a silicone-based soft liner and stored in PBS, regardless of pretreatment (p < 0.01). Silicone-based specimens mostly underwent adhesive failures, while samples containing PMMA-based liners predominantly underwent cohesive failures. The silicone-based specimens SR decreased after 12 days of biofilm accumulation or PBS storage, while the SR of PMMA-based soft liners increased (p < 0.01). The PMMA-based soft liners surfaces presented sharp valleys and depressions, while silicone-based specimens surfaces exhibited more gentle features. In vitro exposure to C. albicans biofilms reduced the adhesion of denture liners to PMMA resin, and MMA pretreatment is recommended during relining procedures. |
id |
SBPQO-1_62d12fc82c2c77e1ea7a88d14115a647 |
---|---|
oai_identifier_str |
oai:scielo:S1806-83242014000100209 |
network_acronym_str |
SBPQO-1 |
network_name_str |
Brazilian Oral Research |
repository_id_str |
|
spelling |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resinCandida albicansDenture LinersTensile StrengthPolymethyl MethacrylateThe effect of Candida albicans biofilms and methyl methacrylate (MMA) pretreatment on the bond strength between soft denture liners and polymethyl methacrylate (PMMA) resin was analyzed. Specimens were prepared and randomly divided with respect to PMMA pretreatment, soft liner type (silicone-based or PMMA-based), and presence or absence of a C. albicans biofilm. Samples were composed of a soft denture liner bonded between two PMMA bars. Specimens (n = 10) were incubated to produce a C. albicans biofilm or stored in sterile PBS for 12 days. The tensile bond strength test was performed and failure type was determined using a stereomicroscope. Surface roughness (SR) and scanning electron microscopy (SEM) analysis were performed on denture liners (n = 8). Highest bond strength was observed in samples containing a silicone-based soft liner and stored in PBS, regardless of pretreatment (p < 0.01). Silicone-based specimens mostly underwent adhesive failures, while samples containing PMMA-based liners predominantly underwent cohesive failures. The silicone-based specimens SR decreased after 12 days of biofilm accumulation or PBS storage, while the SR of PMMA-based soft liners increased (p < 0.01). The PMMA-based soft liners surfaces presented sharp valleys and depressions, while silicone-based specimens surfaces exhibited more gentle features. In vitro exposure to C. albicans biofilms reduced the adhesion of denture liners to PMMA resin, and MMA pretreatment is recommended during relining procedures.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242014000100209Brazilian Oral Research v.28 n.1 2014reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/S1806-83242013005000025info:eu-repo/semantics/openAccessBertolini,Martinna de Mendonça eCavalcanti,Yuri WanderleyBordin,DimorvanSilva,Wander José daDel Bel Cury,Altair Antoninhaeng2016-05-19T00:00:00Zoai:scielo:S1806-83242014000100209Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2016-05-19T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false |
dc.title.none.fl_str_mv |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin |
title |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin |
spellingShingle |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin Bertolini,Martinna de Mendonça e Candida albicans Denture Liners Tensile Strength Polymethyl Methacrylate |
title_short |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin |
title_full |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin |
title_fullStr |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin |
title_full_unstemmed |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin |
title_sort |
Candida albicans biofilms and MMA surface treatment influence the adhesion of soft denture liners to PMMA resin |
author |
Bertolini,Martinna de Mendonça e |
author_facet |
Bertolini,Martinna de Mendonça e Cavalcanti,Yuri Wanderley Bordin,Dimorvan Silva,Wander José da Del Bel Cury,Altair Antoninha |
author_role |
author |
author2 |
Cavalcanti,Yuri Wanderley Bordin,Dimorvan Silva,Wander José da Del Bel Cury,Altair Antoninha |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Bertolini,Martinna de Mendonça e Cavalcanti,Yuri Wanderley Bordin,Dimorvan Silva,Wander José da Del Bel Cury,Altair Antoninha |
dc.subject.por.fl_str_mv |
Candida albicans Denture Liners Tensile Strength Polymethyl Methacrylate |
topic |
Candida albicans Denture Liners Tensile Strength Polymethyl Methacrylate |
description |
The effect of Candida albicans biofilms and methyl methacrylate (MMA) pretreatment on the bond strength between soft denture liners and polymethyl methacrylate (PMMA) resin was analyzed. Specimens were prepared and randomly divided with respect to PMMA pretreatment, soft liner type (silicone-based or PMMA-based), and presence or absence of a C. albicans biofilm. Samples were composed of a soft denture liner bonded between two PMMA bars. Specimens (n = 10) were incubated to produce a C. albicans biofilm or stored in sterile PBS for 12 days. The tensile bond strength test was performed and failure type was determined using a stereomicroscope. Surface roughness (SR) and scanning electron microscopy (SEM) analysis were performed on denture liners (n = 8). Highest bond strength was observed in samples containing a silicone-based soft liner and stored in PBS, regardless of pretreatment (p < 0.01). Silicone-based specimens mostly underwent adhesive failures, while samples containing PMMA-based liners predominantly underwent cohesive failures. The silicone-based specimens SR decreased after 12 days of biofilm accumulation or PBS storage, while the SR of PMMA-based soft liners increased (p < 0.01). The PMMA-based soft liners surfaces presented sharp valleys and depressions, while silicone-based specimens surfaces exhibited more gentle features. In vitro exposure to C. albicans biofilms reduced the adhesion of denture liners to PMMA resin, and MMA pretreatment is recommended during relining procedures. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242014000100209 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242014000100209 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1806-83242013005000025 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Pesquisa Odontológica - SBPqO |
publisher.none.fl_str_mv |
Sociedade Brasileira de Pesquisa Odontológica - SBPqO |
dc.source.none.fl_str_mv |
Brazilian Oral Research v.28 n.1 2014 reponame:Brazilian Oral Research instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO) instacron:SBPQO |
instname_str |
Sociedade Brasileira de Pesquisa Odontológica (SBPqO) |
instacron_str |
SBPQO |
institution |
SBPQO |
reponame_str |
Brazilian Oral Research |
collection |
Brazilian Oral Research |
repository.name.fl_str_mv |
Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO) |
repository.mail.fl_str_mv |
pob@edu.usp.br||bor@sbpqo.org.br |
_version_ |
1750318323759841280 |