Effect of two-phase fabrication method for the optimum fit of light-polymerized record bases
Identifieur interne : 002F42 ( Pmc/Curation ); précédent : 002F41; suivant : 002F43Effect of two-phase fabrication method for the optimum fit of light-polymerized record bases
Auteurs : Jung-Bo Huh [Corée du Sud] ; Min-Goo Kang [Corée du Sud] ; Sang-Wan Shin [Corée du Sud] ; Jae-Jun Ryu [Corée du Sud]Source :
- The Journal of Advanced Prosthodontics [ 2005-7806 ] ; 2010.
Abstract
The aims of this study were to suggest a method of fabrication of the record base using a light-polymerized resin by applying the two-phase fabrication method for the improvement of the fit of the record base and to compare the degree of fit according to the separation site.
In the edentulous cast of maxilla, four test groups were considered. In the first, second, third, and fourth test groups (n = 12 in each group) the separation was done at 0, 5, 10, and 15 mm, respectively below the alveolar crest along the palatal plane. For the control group, the record base was made without separating the two sections. The light-body silicone material was injected into the fitting surface of the record base. It was then placed onto the cast and finger pressure was applied to stabilize it in a seated position followed by immediate placement onto the universal test device. Finally, the mass of the impression material was measured after it was removed. ANOVA was performed using the SAS program. For the post-hoc test, the Wilcoxon Rank-Sum test and the Tukey-Kramer HSD test were performed (α = 0.05).
The control group and Group 3, 4 showed significant differences. The Group 3 and 4 showed significantly smaller inside gaps than the control group which was not made with the two-phase fabrication method.
The two-stage polymerized technique can improve the fit of the denture base particularly when the separation was made at 10 to 15 mm from the alveolar crest.
Url:
DOI: 10.4047/jap.2010.2.3.102
PubMed: 21165278
PubMed Central: 2994693
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<author><name sortKey="Huh, Jung Bo" sort="Huh, Jung Bo" uniqKey="Huh J" first="Jung-Bo" last="Huh">Jung-Bo Huh</name>
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<author><name sortKey="Kang, Min Goo" sort="Kang, Min Goo" uniqKey="Kang M" first="Min-Goo" last="Kang">Min-Goo Kang</name>
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<author><name sortKey="Shin, Sang Wan" sort="Shin, Sang Wan" uniqKey="Shin S" first="Sang-Wan" last="Shin">Sang-Wan Shin</name>
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<author><name sortKey="Ryu, Jae Jun" sort="Ryu, Jae Jun" uniqKey="Ryu J" first="Jae-Jun" last="Ryu">Jae-Jun Ryu</name>
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<series><title level="j">The Journal of Advanced Prosthodontics</title>
<idno type="ISSN">2005-7806</idno>
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<front><div type="abstract" xml:lang="en"><sec><title>PURPOSE</title>
<p>The aims of this study were to suggest a method of fabrication of the record base using a light-polymerized resin by applying the two-phase fabrication method for the improvement of the fit of the record base and to compare the degree of fit according to the separation site.</p>
</sec>
<sec><title>MATERIALS AND METHODS</title>
<p>In the edentulous cast of maxilla, four test groups were considered. In the first, second, third, and fourth test groups (n = 12 in each group) the separation was done at 0, 5, 10, and 15 mm, respectively below the alveolar crest along the palatal plane. For the control group, the record base was made without separating the two sections. The light-body silicone material was injected into the fitting surface of the record base. It was then placed onto the cast and finger pressure was applied to stabilize it in a seated position followed by immediate placement onto the universal test device. Finally, the mass of the impression material was measured after it was removed. ANOVA was performed using the SAS program. For the post-hoc test, the Wilcoxon Rank-Sum test and the Tukey-Kramer HSD test were performed (α = 0.05).</p>
</sec>
<sec><title>RESULTS</title>
<p>The control group and Group 3, 4 showed significant differences. The Group 3 and 4 showed significantly smaller inside gaps than the control group which was not made with the two-phase fabrication method.</p>
</sec>
<sec><title>CONCLUSION</title>
<p>The two-stage polymerized technique can improve the fit of the denture base particularly when the separation was made at 10 to 15 mm from the alveolar crest.</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 Adv Prosthodont</journal-id>
<journal-id journal-id-type="publisher-id">JAP</journal-id>
<journal-title-group><journal-title>The Journal of Advanced Prosthodontics</journal-title>
</journal-title-group>
<issn pub-type="ppub">2005-7806</issn>
<issn pub-type="epub">2005-7814</issn>
<publisher><publisher-name>The Korean Academy of Prosthodontics</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">21165278</article-id>
<article-id pub-id-type="pmc">2994693</article-id>
<article-id pub-id-type="doi">10.4047/jap.2010.2.3.102</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Effect of two-phase fabrication method for the optimum fit of light-polymerized record bases</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Huh</surname>
<given-names>Jung-Bo</given-names>
</name>
<degrees>DDS</degrees>
<degrees>MSD</degrees>
<xref ref-type="aff" rid="A1">1</xref>
<xref ref-type="aff" rid="A3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Kang</surname>
<given-names>Min-Goo</given-names>
</name>
<degrees>DDS</degrees>
<degrees>MSD</degrees>
<xref ref-type="aff" rid="A2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Shin</surname>
<given-names>Sang-Wan</given-names>
</name>
<degrees>DDS</degrees>
<degrees>PhD</degrees>
<xref ref-type="aff" rid="A1">1</xref>
<xref ref-type="aff" rid="A3">3</xref>
</contrib>
<contrib contrib-type="author" corresp="yes"><name><surname>Ryu</surname>
<given-names>Jae-Jun</given-names>
</name>
<degrees>DDS</degrees>
<degrees>PhD</degrees>
<xref ref-type="aff" rid="A2">2</xref>
<xref ref-type="aff" rid="A3">3</xref>
</contrib>
</contrib-group>
<aff id="A1"><label>1</label>
Advanced Prosthodontics, Graduate School of Clinical Dentistry, Institute for Clinical Dental Research, Korea University, Seoul, Korea.</aff>
<aff id="A2"><label>2</label>
Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Institute for Clinical Dental Research, Korea University, Seoul, Korea.</aff>
<aff id="A3"><label>3</label>
Institute for Clinical Dental Research, Korea University, Seoul, Korea.</aff>
<author-notes><corresp>Corresponding author: Jae-Jun Ryu. Center, Korea University Ansan Hospital, Gojan-dong, Danwon-gu, Ansan, 152-703, Korea. Tel. 82 31 404 0830: <email>koprosth@unitel.co.kr</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><month>9</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="epub"><day>30</day>
<month>9</month>
<year>2010</year>
</pub-date>
<volume>2</volume>
<issue>3</issue>
<fpage>102</fpage>
<lpage>105</lpage>
<history><date date-type="received"><day>06</day>
<month>8</month>
<year>2010</year>
</date>
<date date-type="rev-recd"><day>31</day>
<month>8</month>
<year>2010</year>
</date>
<date date-type="accepted"><day>06</day>
<month>9</month>
<year>2010</year>
</date>
</history>
<permissions><copyright-statement>Copyright © 2010 The Korean Academy of Prosthodontics</copyright-statement>
<copyright-year>2010</copyright-year>
<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 (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by-nc/3.0">http://creativecommons.org/licenses/by-nc/3.0</ext-link>
) 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>PURPOSE</title>
<p>The aims of this study were to suggest a method of fabrication of the record base using a light-polymerized resin by applying the two-phase fabrication method for the improvement of the fit of the record base and to compare the degree of fit according to the separation site.</p>
</sec>
<sec><title>MATERIALS AND METHODS</title>
<p>In the edentulous cast of maxilla, four test groups were considered. In the first, second, third, and fourth test groups (n = 12 in each group) the separation was done at 0, 5, 10, and 15 mm, respectively below the alveolar crest along the palatal plane. For the control group, the record base was made without separating the two sections. The light-body silicone material was injected into the fitting surface of the record base. It was then placed onto the cast and finger pressure was applied to stabilize it in a seated position followed by immediate placement onto the universal test device. Finally, the mass of the impression material was measured after it was removed. ANOVA was performed using the SAS program. For the post-hoc test, the Wilcoxon Rank-Sum test and the Tukey-Kramer HSD test were performed (α = 0.05).</p>
</sec>
<sec><title>RESULTS</title>
<p>The control group and Group 3, 4 showed significant differences. The Group 3 and 4 showed significantly smaller inside gaps than the control group which was not made with the two-phase fabrication method.</p>
</sec>
<sec><title>CONCLUSION</title>
<p>The two-stage polymerized technique can improve the fit of the denture base particularly when the separation was made at 10 to 15 mm from the alveolar crest.</p>
</sec>
</abstract>
<kwd-group><kwd>Record base</kwd>
<kwd>Two-stage polymerization</kwd>
<kwd>Fit</kwd>
</kwd-group>
</article-meta>
</front>
<floats-group><fig id="F1" position="float"><label>Fig. 1</label>
<caption><p>Set-up guide line for the production of the experimental group.</p>
</caption>
<graphic xlink:href="jap-2-102-g001"></graphic>
</fig>
<fig id="F2" position="float"><label>Fig. 2</label>
<caption><p>Fabrication of two stage record base (In case of Test group 4; 15 mm below the alveolar crest along the alveolar ridge). A: The record base was divided into two U-shaped segments 15 mm below the alveolar crest along the alveolar ridge. Light polymerization of the record base placed on the cast was performed. B: The gap between the two parts in the cast was filled again with light-polymerized resin, followed by light polymerization for an additional 15 minutes.</p>
</caption>
<graphic xlink:href="jap-2-102-g002"></graphic>
</fig>
<fig id="F3" position="float"><label>Fig. 3</label>
<caption><p>Box-plot chart of each group.</p>
</caption>
<graphic xlink:href="jap-2-102-g003"></graphic>
</fig>
<table-wrap id="T1" position="float"><label>Table 1</label>
<caption><p>Comparison of all pairs using the Tukey-Kramer HSD</p>
</caption>
<graphic xlink:href="jap-2-102-i001"></graphic>
<table-wrap-foot><fn><p>Levels not connected by the same letter are significantly different.</p>
</fn>
</table-wrap-foot>
</table-wrap>
</floats-group>
</pmc>
</record>
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