Validation of an experimental polyurethane model for biomechanical studies on implant-supported prosthesis – compression tests
Identifieur interne : 000619 ( Pmc/Curation ); précédent : 000618; suivant : 000620Validation of an experimental polyurethane model for biomechanical studies on implant-supported prosthesis – compression tests
Auteurs : Rafael Tobias Moretti Neto [Brésil] ; Daniel Afonso Hiramatsu [Brésil] ; Valdey Suedam [Brésil] ; Paulo César Rodrigues Conti [Brésil] ; José Henrique Rubo [Brésil]Source :
- Journal of Applied Oral Science [ 1678-7757 ] ; 2011.
Abstract
The complexity and heterogeneity of human bone, as well as ethical issues, most
always hinder the performance of clinical trials. Thus,
In this study, fast-curing polyurethane (F16 polyurethane, Axson) was used to build 40 specimens that were divided into five groups. The following reagent ratios (part A/part B) were used: Group A (0.5/1.0), Group B (0.8/1.0), Group C (1.0/1.0), Group D (1.2/1.0), and Group E (1.5/1.0). A universal testing machine (Kratos model K – 2000 MP) was used to measure modulus of elasticity values by compression.
Mean modulus of elasticity values were: Group A – 389.72 MPa, Group B – 529.19 MPa, Group C – 571.11 MPa, Group D – 470.35 MPa, Group E – 437.36 MPa.
The best mechanical characteristics and modulus of elasticity value comparable to that of human trabecular bone were obtained when A/B ratio was 1:1.
Url:
DOI: 10.1590/S1678-77572011000100010
PubMed: 21437469
PubMed Central: 4245863
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studies on implant-supported prosthesis – compression tests</title>
<author><name sortKey="Moretti Neto, Rafael Tobias" sort="Moretti Neto, Rafael Tobias" uniqKey="Moretti Neto R" first="Rafael Tobias" last="Moretti Neto">Rafael Tobias Moretti Neto</name>
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<author><name sortKey="Hiramatsu, Daniel Afonso" sort="Hiramatsu, Daniel Afonso" uniqKey="Hiramatsu D" first="Daniel Afonso" last="Hiramatsu">Daniel Afonso Hiramatsu</name>
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<author><name sortKey="Moretti Neto, Rafael Tobias" sort="Moretti Neto, Rafael Tobias" uniqKey="Moretti Neto R" first="Rafael Tobias" last="Moretti Neto">Rafael Tobias Moretti Neto</name>
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<country xml:lang="fr" wicri:curation="lc">Brésil</country>
<wicri:regionArea> DDs, MSc, PhD, Department of Clinics and Surgery, Dental School, Federal University of Alfenas, Alfenas, MG</wicri:regionArea>
</affiliation>
</author>
<author><name sortKey="Hiramatsu, Daniel Afonso" sort="Hiramatsu, Daniel Afonso" uniqKey="Hiramatsu D" first="Daniel Afonso" last="Hiramatsu">Daniel Afonso Hiramatsu</name>
<affiliation wicri:level="1"><nlm:aff id="aff02"> DDs, MSc, Private Practice, Santos, SP, Brazil.</nlm:aff>
<country xml:lang="fr" wicri:curation="lc">Brésil</country>
<wicri:regionArea> DDs, MSc, Private Practice, Santos, SP</wicri:regionArea>
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<author><name sortKey="Suedam, Valdey" sort="Suedam, Valdey" uniqKey="Suedam V" first="Valdey" last="Suedam">Valdey Suedam</name>
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<wicri:regionArea> DDs, MSc, PhD, Private Practice, Bauru, SP</wicri:regionArea>
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<author><name sortKey="Conti, Paulo Cesar Rodrigues" sort="Conti, Paulo Cesar Rodrigues" uniqKey="Conti P" first="Paulo César Rodrigues" last="Conti">Paulo César Rodrigues Conti</name>
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<wicri:regionArea> DDs, MSc, PhD, Associate Professor, Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Bauru, SP</wicri:regionArea>
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<author><name sortKey="Rubo, Jose Henrique" sort="Rubo, Jose Henrique" uniqKey="Rubo J" first="José Henrique" last="Rubo">José Henrique Rubo</name>
<affiliation wicri:level="1"><nlm:aff id="aff04"> DDs, MSc, PhD, Associate Professor, Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil.</nlm:aff>
<country xml:lang="fr" wicri:curation="lc">Brésil</country>
<wicri:regionArea> DDs, MSc, PhD, Associate Professor, Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Bauru, SP</wicri:regionArea>
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<series><title level="j">Journal of Applied Oral Science</title>
<idno type="ISSN">1678-7757</idno>
<idno type="eISSN">1678-7765</idno>
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<front><div type="abstract" xml:lang="en"><sec><title>Objectives</title>
<p>The complexity and heterogeneity of human bone, as well as ethical issues, most
always hinder the performance of clinical trials. Thus, <italic>in vitro</italic>
studies become an important source of information for the understanding of
biomechanical events on implantsupported prostheses, although study results cannot
be considered reliable unless validation studies are conducted. The purpose of
this work was to validate an artificial experimental model based on its modulus of
elasticity, to simulate the performance of human bone <italic>in vivo</italic>
in
biomechanical studies of implant-supported prostheses.</p>
</sec>
<sec><title>Material and Methods</title>
<p>In this study, fast-curing polyurethane (F16 polyurethane, Axson) was used to
build 40 specimens that were divided into five groups. The following reagent
ratios (part A/part B) were used: Group A (0.5/1.0), Group B (0.8/1.0), Group C
(1.0/1.0), Group D (1.2/1.0), and Group E (1.5/1.0). A universal testing machine
(Kratos model K – 2000 MP) was used to measure modulus of elasticity values by
compression.</p>
</sec>
<sec><title>Results</title>
<p>Mean modulus of elasticity values were: Group A – 389.72 MPa, Group B – 529.19
MPa, Group C – 571.11 MPa, Group D – 470.35 MPa, Group E – 437.36 MPa.</p>
</sec>
<sec><title>Conclusion</title>
<p>The best mechanical characteristics and modulus of elasticity value comparable to
that of human trabecular bone were obtained when A/B ratio was 1:1.</p>
</sec>
</div>
</front>
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<pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Appl Oral Sci</journal-id>
<journal-id journal-id-type="iso-abbrev">J Appl Oral Sci</journal-id>
<journal-title-group><journal-title>Journal of Applied Oral Science</journal-title>
</journal-title-group>
<issn pub-type="ppub">1678-7757</issn>
<issn pub-type="epub">1678-7765</issn>
<publisher><publisher-name>Faculdade de Odontologia de Bauru da Universidade de São
Paulo</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">21437469</article-id>
<article-id pub-id-type="pmc">4245863</article-id>
<article-id pub-id-type="doi">10.1590/S1678-77572011000100010</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Original Articles</subject>
</subj-group>
</article-categories>
<title-group><article-title> Validation of an experimental polyurethane model for biomechanical
studies on implant-supported prosthesis – compression tests</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>MORETTI NETO</surname>
<given-names>Rafael Tobias</given-names>
</name>
<xref ref-type="aff" rid="aff01">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>HIRAMATSU</surname>
<given-names>Daniel Afonso</given-names>
</name>
<xref ref-type="aff" rid="aff02">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>SUEDAM</surname>
<given-names>Valdey</given-names>
</name>
<xref ref-type="aff" rid="aff03">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>CONTI</surname>
<given-names>Paulo César Rodrigues</given-names>
</name>
<xref ref-type="aff" rid="aff04">4</xref>
</contrib>
<contrib contrib-type="author"><name><surname>RUBO</surname>
<given-names>José Henrique</given-names>
</name>
<xref ref-type="aff" rid="aff04">4</xref>
<xref ref-type="corresp" rid="c01"></xref>
</contrib>
</contrib-group>
<aff id="aff01"><label>1</label>
DDs, MSc, PhD, Department of Clinics and Surgery, Dental School, Federal University of Alfenas, Alfenas, MG, Brazil.</aff>
<aff id="aff02"><label>2</label>
DDs, MSc, Private Practice, Santos, SP, Brazil.</aff>
<aff id="aff03"><label>3</label>
DDs, MSc, PhD, Private Practice, Bauru, SP, Brazil.</aff>
<aff id="aff04"><label>4</label>
DDs, MSc, PhD, Associate Professor, Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil.</aff>
<author-notes><corresp id="c01"><bold>Corresponding address:</bold>
José Henrique Rubo -
Faculdade de Odontologia de Bauru - USP - Departamento de Prótese - Al. Dr.
Octávio Pinheiro Brisolla, 9-75 - Bauru, SP - Brasil - 17012-901 - e-mail:
<email>jrubo@fob.usp.br</email>
- Phone/fax: 55 14 3235 8277</corresp>
</author-notes>
<pub-date pub-type="epub-ppub"><season>Jan-Feb</season>
<year>2011</year>
</pub-date>
<pmc-comment>Fake ppub date generated by PMC from publisher
pub-date/@pub-type='epub-ppub' </pmc-comment>
<pub-date pub-type="ppub"><season>Jan-Feb</season>
<year>2011</year>
</pub-date>
<volume>19</volume>
<issue>1</issue>
<fpage>47</fpage>
<lpage>51</lpage>
<history><date date-type="received"><day>19</day>
<month>5</month>
<year>2009</year>
</date>
<date date-type="rev-recd"><day>09</day>
<month>4</month>
<year>2010</year>
</date>
<date date-type="accepted"><day>27</day>
<month>4</month>
<year>2010</year>
</date>
</history>
<permissions><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/"><license-p>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.</license-p>
</license>
</permissions>
<abstract><sec><title>Objectives</title>
<p>The complexity and heterogeneity of human bone, as well as ethical issues, most
always hinder the performance of clinical trials. Thus, <italic>in vitro</italic>
studies become an important source of information for the understanding of
biomechanical events on implantsupported prostheses, although study results cannot
be considered reliable unless validation studies are conducted. The purpose of
this work was to validate an artificial experimental model based on its modulus of
elasticity, to simulate the performance of human bone <italic>in vivo</italic>
in
biomechanical studies of implant-supported prostheses.</p>
</sec>
<sec><title>Material and Methods</title>
<p>In this study, fast-curing polyurethane (F16 polyurethane, Axson) was used to
build 40 specimens that were divided into five groups. The following reagent
ratios (part A/part B) were used: Group A (0.5/1.0), Group B (0.8/1.0), Group C
(1.0/1.0), Group D (1.2/1.0), and Group E (1.5/1.0). A universal testing machine
(Kratos model K – 2000 MP) was used to measure modulus of elasticity values by
compression.</p>
</sec>
<sec><title>Results</title>
<p>Mean modulus of elasticity values were: Group A – 389.72 MPa, Group B – 529.19
MPa, Group C – 571.11 MPa, Group D – 470.35 MPa, Group E – 437.36 MPa.</p>
</sec>
<sec><title>Conclusion</title>
<p>The best mechanical characteristics and modulus of elasticity value comparable to
that of human trabecular bone were obtained when A/B ratio was 1:1.</p>
</sec>
</abstract>
<kwd-group><kwd>Polyurethanes</kwd>
<kwd>Validation studies</kwd>
<kwd>Dental implants</kwd>
</kwd-group>
<funding-group><award-group><funding-source>FAPESP</funding-source>
<award-id>2006/57414-8</award-id>
</award-group>
</funding-group>
</article-meta>
</front>
</pmc>
</record>
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