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Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin

Polymethyl methacrylate (PMMA) resins have commonly been used as a denture base material. However, denture bases may act as a reservoir for microorganisms and contribute to oral diseases in denture wearers. It is hypothesized that the 2-tertbutylaminoethyl methacrylate (TBAEMA) incorporated to acryl...

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Autores principales: PALEARI, André Gustavo, MARRA, Juliê, PERO, Ana Carolina, RODRIGUEZ, Larissa Santana, RUVOLO-FILHO, Adhemar, COMPAGNONI, Marco Antonio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Faculdade de Odontologia de Bauru da Universidade de São Paulo 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4234328/
https://www.ncbi.nlm.nih.gov/pubmed/21625732
http://dx.doi.org/10.1590/S1678-77572011000300003
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author PALEARI, André Gustavo
MARRA, Juliê
PERO, Ana Carolina
RODRIGUEZ, Larissa Santana
RUVOLO-FILHO, Adhemar
COMPAGNONI, Marco Antonio
author_facet PALEARI, André Gustavo
MARRA, Juliê
PERO, Ana Carolina
RODRIGUEZ, Larissa Santana
RUVOLO-FILHO, Adhemar
COMPAGNONI, Marco Antonio
author_sort PALEARI, André Gustavo
collection PubMed
description Polymethyl methacrylate (PMMA) resins have commonly been used as a denture base material. However, denture bases may act as a reservoir for microorganisms and contribute to oral diseases in denture wearers. It is hypothesized that the 2-tertbutylaminoethyl methacrylate (TBAEMA) incorporated to acrylic resins should have antimicrobial activity related to the presence of amino groups on acrylic resin surface. OBJECTIVES: The objectives of this study were to evaluate the presence of amino groups on acrylic resin surface and the influence on flexural strength after incorporation of TBAEMA. MATERIAL AND METHODS: Six groups were divided according to the concentration of TBAEMA incorporated to acrylic resin (Lucitone 550): 0, 0.5, 1.0, 1.5, 1.75 and 2%. Specimens surface were evaluated by electron Spectroscopy for Chemical Analysis (ESCA) to detect the presence of amino groups, represented by nitrogen ratios. Flexural strength of the specimens was tested and results were analyzed by ANOVA and Tukey's test (α=0.05). RESULTS: Different nitrogen ratios were observed on specimen surfaces: 0, 0.13, 0.74, 0.66, 0.92 and 0.33% for groups 0, 0.5, 1.0, 1.5, 1.75, and 2%, respectively. Significant differences were found for flexural strength (p<0.001). The mean flexural strength values were 98.3±3.9, 93.3±3.2, 83.9±2.1, 82.8±5.2, 71.2±5.1 and 17.3±3.2 MPa for groups 0, 0.5, 1.0, 1.5, 1.75, and 2%, respectively. CONCLUSION: Within the limitations of this study, the incorporation of TBAEMA results in the presence of the potentially antimicrobial amino groups on specimen surfaces, but affect the flexural strength, depending on the concentration of TBAEMA.
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spelling pubmed-42343282014-11-19 Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin PALEARI, André Gustavo MARRA, Juliê PERO, Ana Carolina RODRIGUEZ, Larissa Santana RUVOLO-FILHO, Adhemar COMPAGNONI, Marco Antonio J Appl Oral Sci Original Articles Polymethyl methacrylate (PMMA) resins have commonly been used as a denture base material. However, denture bases may act as a reservoir for microorganisms and contribute to oral diseases in denture wearers. It is hypothesized that the 2-tertbutylaminoethyl methacrylate (TBAEMA) incorporated to acrylic resins should have antimicrobial activity related to the presence of amino groups on acrylic resin surface. OBJECTIVES: The objectives of this study were to evaluate the presence of amino groups on acrylic resin surface and the influence on flexural strength after incorporation of TBAEMA. MATERIAL AND METHODS: Six groups were divided according to the concentration of TBAEMA incorporated to acrylic resin (Lucitone 550): 0, 0.5, 1.0, 1.5, 1.75 and 2%. Specimens surface were evaluated by electron Spectroscopy for Chemical Analysis (ESCA) to detect the presence of amino groups, represented by nitrogen ratios. Flexural strength of the specimens was tested and results were analyzed by ANOVA and Tukey's test (α=0.05). RESULTS: Different nitrogen ratios were observed on specimen surfaces: 0, 0.13, 0.74, 0.66, 0.92 and 0.33% for groups 0, 0.5, 1.0, 1.5, 1.75, and 2%, respectively. Significant differences were found for flexural strength (p<0.001). The mean flexural strength values were 98.3±3.9, 93.3±3.2, 83.9±2.1, 82.8±5.2, 71.2±5.1 and 17.3±3.2 MPa for groups 0, 0.5, 1.0, 1.5, 1.75, and 2%, respectively. CONCLUSION: Within the limitations of this study, the incorporation of TBAEMA results in the presence of the potentially antimicrobial amino groups on specimen surfaces, but affect the flexural strength, depending on the concentration of TBAEMA. Faculdade de Odontologia de Bauru da Universidade de São Paulo 2011 /pmc/articles/PMC4234328/ /pubmed/21625732 http://dx.doi.org/10.1590/S1678-77572011000300003 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
PALEARI, André Gustavo
MARRA, Juliê
PERO, Ana Carolina
RODRIGUEZ, Larissa Santana
RUVOLO-FILHO, Adhemar
COMPAGNONI, Marco Antonio
Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin
title Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin
title_full Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin
title_fullStr Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin
title_full_unstemmed Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin
title_short Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin
title_sort effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4234328/
https://www.ncbi.nlm.nih.gov/pubmed/21625732
http://dx.doi.org/10.1590/S1678-77572011000300003
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