Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques

Detalhes bibliográficos
Autor(a) principal: Campos, Maria Agnese Pinto de
Data de Publicação: 2009
Outros Autores: Kochenborger, Claudia, Ferreira da Silva, Diego Fabris, Teixeira, Eduardo Rolim, Shinkai, Rosemary Sadami Arai
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista odonto ciência (Online)
Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4370
Resumo: Purpose: To evaluate the cumulative effect of two protocols of microwave disinfection (Protocol 1: 690 W/6 min; Protocol 2: 345 W/6 min) on surface roughness (Ra) and baseplate adaptation of two denture resins polymerized by microwave energy (Onda Cryl) or hot water bath (QC-20). Methods: For Ra evaluation, rectangular specimens were fabricated and subjected to the following disinfection treatment (n=8/group): 1) Control (no disinfection), 2) Protocol 1, and 3) Protocol 2. Ra was measured using a profilometer at baseline (T0) and after two disinfection procedures (T1, T2) with a 7-day interval immersed in distilled water. To evaluate dimensional stability, maxillary baseplates were divided into the disinfection treatment groups (n=6), and adaptation was measured by weighing a silicon film reproducing the gap between resin baseplate and a metallic master model. Results: Ra had a significant interaction between type of resin/polymerization technique, disinfection treatment, and number of disinfection procedures (P<0.001). For Ra, Protocol 2 and control groups had similar increase of Ra over time, but Protocol 1 groups showed a significant decrease of Ra in T2. Baseplate adaptation was affected by a significant interaction between disinfection treatment and number of disinfection procedures (P<0.001), and Protocol 1 yielded the largest mean in T2. Conclusion: Onda Cryl displayed greater changes of Ra and adaptation than QC-20. Protocol 1 promoted overall damage to both types of denture resins after two disinfection procedures. Key words: Dental polymers; denture resins; microwave disinfection; surface roughness; dimensional stability
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spelling Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniquesEfeito da desinfecção repetida por microondas sobre rugosidade superficial e adaptação de bases de resinas polimerizadas por diferentes técnicasDental polymersdenture resinsmicrowave disinfectionsurface roughnessdimensional stabilitydisinfectionmaterials propertiesPurpose: To evaluate the cumulative effect of two protocols of microwave disinfection (Protocol 1: 690 W/6 min; Protocol 2: 345 W/6 min) on surface roughness (Ra) and baseplate adaptation of two denture resins polymerized by microwave energy (Onda Cryl) or hot water bath (QC-20). Methods: For Ra evaluation, rectangular specimens were fabricated and subjected to the following disinfection treatment (n=8/group): 1) Control (no disinfection), 2) Protocol 1, and 3) Protocol 2. Ra was measured using a profilometer at baseline (T0) and after two disinfection procedures (T1, T2) with a 7-day interval immersed in distilled water. To evaluate dimensional stability, maxillary baseplates were divided into the disinfection treatment groups (n=6), and adaptation was measured by weighing a silicon film reproducing the gap between resin baseplate and a metallic master model. Results: Ra had a significant interaction between type of resin/polymerization technique, disinfection treatment, and number of disinfection procedures (P<0.001). For Ra, Protocol 2 and control groups had similar increase of Ra over time, but Protocol 1 groups showed a significant decrease of Ra in T2. Baseplate adaptation was affected by a significant interaction between disinfection treatment and number of disinfection procedures (P<0.001), and Protocol 1 yielded the largest mean in T2. Conclusion: Onda Cryl displayed greater changes of Ra and adaptation than QC-20. Protocol 1 promoted overall damage to both types of denture resins after two disinfection procedures. Key words: Dental polymers; denture resins; microwave disinfection; surface roughness; dimensional stabilityObjetivo: Avaliar o efeito cumulativo de dois protocolos de desinfecção por energia de micro-ondas (Protocolo 1: 690 W/6 min; Protocolo 2: 345 W/6 min) na rugosidade superficial (Ra) e adaptação de bases de dentadura de duas resinas polimerizadas por micro-ondas (Onda Cryl) ou banho de água quente (QC-20). Metodologia: Para Ra, espécimes retangulares foram fabricados e divididos de acordo com o tratamento de desinfecção (n=8/grupo): 1) Controle (sem desinfecção), 2) Protocolo 1, e 3) Protocolo 2. Para medir Ra usou-se um rugosímetro no baseline (T0) e após 2 procedimentos de desinfecção (T1, T2) com intervalo de 7 dias de imersão em água destilada. Para avaliar a estabilidade dimensional, bases maxilares foram divididas nos 3 grupos (n=6) e a adaptação foi medida por pesagem de uma película de silicone que reproduzia o espaço entre a base de resina e um modelo-mestre metálico. Resultados: Para Ra, houve interação significativa entre tipo de resina e técnica de polimerização, tratamento de desinfecção, e número de procedimentos desinfecção (P<0,001). Os grupos Protocolo 2 e controle apresentaram aumento semelhante de Ra ao longo do tempo, mas os grupos Protocolo 1 tiveram uma redução significativa de Ra em T2. A adaptação da base foi afetada por uma interação significante entre tratamento de desinfecção e número de procedimentos de desinfecção (P<0,001); o Protocolo 1 apresentou a maior média em T2. Conclusão: Onda Cryl teve maiores alterações de Ra e adaptação que QC-20. O Protocolo 1 promoveu dano geral para ambos os tipos de resina após dois procedimentos de desinfecção. Palavras-chave: Polímeros; resinas acrílicas; desinfecção por micro-ondas; rugosidade superficial; estabilidade dimensionalEDIPUCRS - Editora Universitária da PUCRS2009-02-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articlelaboratoryapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4370Revista Odonto Ciência; Vol. 24 No. 1 (2009); 40 - 44Revista Odonto Ciência; v. 24 n. 1 (2009); 40 - 441980-65230102-9460reponame:Revista odonto ciência (Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSenghttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4370/3667Campos, Maria Agnese Pinto deKochenborger, ClaudiaFerreira da Silva, Diego FabrisTeixeira, Eduardo RolimShinkai, Rosemary Sadami Araiinfo:eu-repo/semantics/openAccess2013-11-11T13:23:39Zoai:ojs.revistaseletronicas.pucrs.br:article/4370Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-11T13:23:39Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques
Efeito da desinfecção repetida por microondas sobre rugosidade superficial e adaptação de bases de resinas polimerizadas por diferentes técnicas
title Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques
spellingShingle Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques
Campos, Maria Agnese Pinto de
Dental polymers
denture resins
microwave disinfection
surface roughness
dimensional stability
disinfection
materials properties
title_short Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques
title_full Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques
title_fullStr Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques
title_full_unstemmed Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques
title_sort Effect of repeated microwave disinfection on surface roughness and baseplate adaptation of denture resins polymerized by different techniques
author Campos, Maria Agnese Pinto de
author_facet Campos, Maria Agnese Pinto de
Kochenborger, Claudia
Ferreira da Silva, Diego Fabris
Teixeira, Eduardo Rolim
Shinkai, Rosemary Sadami Arai
author_role author
author2 Kochenborger, Claudia
Ferreira da Silva, Diego Fabris
Teixeira, Eduardo Rolim
Shinkai, Rosemary Sadami Arai
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Campos, Maria Agnese Pinto de
Kochenborger, Claudia
Ferreira da Silva, Diego Fabris
Teixeira, Eduardo Rolim
Shinkai, Rosemary Sadami Arai
dc.subject.por.fl_str_mv Dental polymers
denture resins
microwave disinfection
surface roughness
dimensional stability
disinfection
materials properties
topic Dental polymers
denture resins
microwave disinfection
surface roughness
dimensional stability
disinfection
materials properties
description Purpose: To evaluate the cumulative effect of two protocols of microwave disinfection (Protocol 1: 690 W/6 min; Protocol 2: 345 W/6 min) on surface roughness (Ra) and baseplate adaptation of two denture resins polymerized by microwave energy (Onda Cryl) or hot water bath (QC-20). Methods: For Ra evaluation, rectangular specimens were fabricated and subjected to the following disinfection treatment (n=8/group): 1) Control (no disinfection), 2) Protocol 1, and 3) Protocol 2. Ra was measured using a profilometer at baseline (T0) and after two disinfection procedures (T1, T2) with a 7-day interval immersed in distilled water. To evaluate dimensional stability, maxillary baseplates were divided into the disinfection treatment groups (n=6), and adaptation was measured by weighing a silicon film reproducing the gap between resin baseplate and a metallic master model. Results: Ra had a significant interaction between type of resin/polymerization technique, disinfection treatment, and number of disinfection procedures (P<0.001). For Ra, Protocol 2 and control groups had similar increase of Ra over time, but Protocol 1 groups showed a significant decrease of Ra in T2. Baseplate adaptation was affected by a significant interaction between disinfection treatment and number of disinfection procedures (P<0.001), and Protocol 1 yielded the largest mean in T2. Conclusion: Onda Cryl displayed greater changes of Ra and adaptation than QC-20. Protocol 1 promoted overall damage to both types of denture resins after two disinfection procedures. Key words: Dental polymers; denture resins; microwave disinfection; surface roughness; dimensional stability
publishDate 2009
dc.date.none.fl_str_mv 2009-02-02
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
laboratory
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4370
url https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4370
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4370/3667
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.publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
dc.source.none.fl_str_mv Revista Odonto Ciência; Vol. 24 No. 1 (2009); 40 - 44
Revista Odonto Ciência; v. 24 n. 1 (2009); 40 - 44
1980-6523
0102-9460
reponame:Revista odonto ciência (Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Revista odonto ciência (Online)
collection Revista odonto ciência (Online)
repository.name.fl_str_mv Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv ||odontociencia@pucrs.br
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