Three-dimensional accuracy of different correction methods for cast implant bars
Identifieur interne : 002E94 ( Pmc/Curation ); précédent : 002E93; suivant : 002E95Three-dimensional accuracy of different correction methods for cast implant bars
Auteurs : Ji-Yung Kwon [Corée du Sud] ; Chang-Whe Kim [Corée du Sud] ; Young-Jun Lim [Corée du Sud] ; Ho-Beom Kwon [Corée du Sud] ; Myung-Joo Kim [Corée du Sud]Source :
- The Journal of Advanced Prosthodontics [ 2005-7806 ] ; 2014.
Abstract
The aim of the present study was to evaluate the accuracy of three techniques for correction of cast implant bars.
Thirty cast implant bars were fabricated on a metal master model. All cast implant bars were sectioned at 5 mm from the left gold cylinder using a disk of 0.3 mm thickness, and then each group of ten specimens was corrected by gas-air torch soldering, laser welding, and additional casting technique. Three dimensional evaluation including horizontal, vertical, and twisting measurements was based on measurement and comparison of (1) gap distances of the right abutment replica-gold cylinder interface at buccal, distal, lingual side, (2) changes of bar length, and (3) axis angle changes of the right gold cylinders at the step of the post-correction measurements on the three groups with a contact and non-contact coordinate measuring machine. One-way analysis of variance (ANOVA) and paired t-test were performed at the significance level of 5%.
Gap distances of the cast implant bars after correction procedure showed no statistically significant difference among groups. Changes in bar length between pre-casting and post-correction measurement were statistically significance among groups. Axis angle changes of the right gold cylinders were not statistically significance among groups.
There was no statistical significance among three techniques in horizontal, vertical and axial errors. But, gas-air torch soldering technique showed the most consistent and accurate trend in the correction of implant bar error. However, Laser welding technique, showed a large mean and standard deviation in vertical and twisting measurement and might be technique-sensitive method.
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DOI: 10.4047/jap.2014.6.1.39
PubMed: 24605205
PubMed Central: 3942526
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Three-dimensional accuracy of different correction methods for cast implant bars</title><author><name sortKey="Kwon, Ji Yung" sort="Kwon, Ji Yung" uniqKey="Kwon J" first="Ji-Yung" last="Kwon">Ji-Yung Kwon</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Chang Whe" sort="Kim, Chang Whe" uniqKey="Kim C" first="Chang-Whe" last="Kim">Chang-Whe Kim</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Lim, Young Jun" sort="Lim, Young Jun" uniqKey="Lim Y" first="Young-Jun" last="Lim">Young-Jun Lim</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kwon, Ho Beom" sort="Kwon, Ho Beom" uniqKey="Kwon H" first="Ho-Beom" last="Kwon">Ho-Beom Kwon</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Myung Joo" sort="Kim, Myung Joo" uniqKey="Kim M" first="Myung-Joo" last="Kim">Myung-Joo Kim</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">24605205</idno><idno type="pmc">3942526</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3942526</idno><idno type="RBID">PMC:3942526</idno><idno type="doi">10.4047/jap.2014.6.1.39</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">002E94</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002E94</idno><idno type="wicri:Area/Pmc/Curation">002E94</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">002E94</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Three-dimensional accuracy of different correction methods for cast implant bars</title><author><name sortKey="Kwon, Ji Yung" sort="Kwon, Ji Yung" uniqKey="Kwon J" first="Ji-Yung" last="Kwon">Ji-Yung Kwon</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Chang Whe" sort="Kim, Chang Whe" uniqKey="Kim C" first="Chang-Whe" last="Kim">Chang-Whe Kim</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Lim, Young Jun" sort="Lim, Young Jun" uniqKey="Lim Y" first="Young-Jun" last="Lim">Young-Jun Lim</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kwon, Ho Beom" sort="Kwon, Ho Beom" uniqKey="Kwon H" first="Ho-Beom" last="Kwon">Ho-Beom Kwon</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Myung Joo" sort="Kim, Myung Joo" uniqKey="Kim M" first="Myung-Joo" last="Kim">Myung-Joo Kim</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul</wicri:regionArea></affiliation></author></analytic><series><title level="j">The Journal of Advanced Prosthodontics</title><idno type="ISSN">2005-7806</idno><idno type="eISSN">2005-7814</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>PURPOSE</title><p>The aim of the present study was to evaluate the accuracy of three techniques for correction of cast implant bars.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Thirty cast implant bars were fabricated on a metal master model. All cast implant bars were sectioned at 5 mm from the left gold cylinder using a disk of 0.3 mm thickness, and then each group of ten specimens was corrected by gas-air torch soldering, laser welding, and additional casting technique. Three dimensional evaluation including horizontal, vertical, and twisting measurements was based on measurement and comparison of (1) gap distances of the right abutment replica-gold cylinder interface at buccal, distal, lingual side, (2) changes of bar length, and (3) axis angle changes of the right gold cylinders at the step of the post-correction measurements on the three groups with a contact and non-contact coordinate measuring machine. One-way analysis of variance (ANOVA) and paired t-test were performed at the significance level of 5%.</p></sec><sec><title>RESULTS</title><p>Gap distances of the cast implant bars after correction procedure showed no statistically significant difference among groups. Changes in bar length between pre-casting and post-correction measurement were statistically significance among groups. Axis angle changes of the right gold cylinders were not statistically significance among groups.</p></sec><sec><title>CONCLUSION</title><p>There was no statistical significance among three techniques in horizontal, vertical and axial errors. But, gas-air torch soldering technique showed the most consistent and accurate trend in the correction of implant bar error. However, Laser welding technique, showed a large mean and standard deviation in vertical and twisting measurement and might be technique-sensitive method.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Rangert, B" uniqKey="Rangert B">B Rangert</name></author><author><name sortKey="Jemt, T" uniqKey="Jemt T">T Jemt</name></author><author><name sortKey="Jorneus, L" uniqKey="Jorneus L">L Jörneus</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Rangert, B" uniqKey="Rangert B">B Rangert</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jemt, T" uniqKey="Jemt T">T Jemt</name></author><author><name sortKey="Linden, B" uniqKey="Linden B">B Lindén</name></author><author><name sortKey="Lekholm, U" uniqKey="Lekholm U">U Lekholm</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Hoshaw, Sj" uniqKey="Hoshaw S">SJ 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uniqKey="Watari F">F Watari</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jemt, T" uniqKey="Jemt T">T Jemt</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Huling, Js" uniqKey="Huling J">JS Huling</name></author><author><name sortKey="Clark, Re" uniqKey="Clark R">RE Clark</name></author></analytic></biblStruct></listBibl></div1></back></TEI><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="iso-abbrev">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">24605205</article-id><article-id pub-id-type="pmc">3942526</article-id><article-id pub-id-type="doi">10.4047/jap.2014.6.1.39</article-id><article-categories><subj-group><subject>Original Article</subject></subj-group></article-categories><title-group><article-title>Three-dimensional accuracy of different correction methods for cast implant bars</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Kwon</surname><given-names>Ji-Yung</given-names></name><xref ref-type="aff" rid="A1"></xref></contrib><contrib contrib-type="author"><name><surname>Kim</surname><given-names>Chang-Whe</given-names></name><xref ref-type="aff" rid="A1"></xref></contrib><contrib contrib-type="author"><name><surname>Lim</surname><given-names>Young-Jun</given-names></name><xref ref-type="aff" rid="A1"></xref></contrib><contrib contrib-type="author"><name><surname>Kwon</surname><given-names>Ho-Beom</given-names></name><xref ref-type="aff" rid="A1"></xref></contrib><contrib contrib-type="author" corresp="yes"><name><surname>Kim</surname><given-names>Myung-Joo</given-names></name><xref ref-type="aff" rid="A1"></xref></contrib></contrib-group><aff id="A1">Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.</aff><author-notes><corresp>Corresponding author: Myung-Joo Kim. Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea. Tel. 82220720815: <email>silk1@snu.ac.kr</email></corresp></author-notes><pub-date pub-type="ppub"><month>2</month><year>2014</year></pub-date><pub-date pub-type="epub"><day>14</day><month>2</month><year>2014</year></pub-date><volume>6</volume><issue>1</issue><fpage>39</fpage><lpage>45</lpage><history><date date-type="received"><day>06</day><month>9</month><year>2013</year></date><date date-type="rev-recd"><day>14</day><month>1</month><year>2014</year></date><date date-type="accepted"><day>21</day><month>1</month><year>2014</year></date></history><permissions><copyright-statement>© 2014 The Korean Academy of Prosthodontics</copyright-statement><copyright-year>2014</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 aim of the present study was to evaluate the accuracy of three techniques for correction of cast implant bars.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Thirty cast implant bars were fabricated on a metal master model. All cast implant bars were sectioned at 5 mm from the left gold cylinder using a disk of 0.3 mm thickness, and then each group of ten specimens was corrected by gas-air torch soldering, laser welding, and additional casting technique. Three dimensional evaluation including horizontal, vertical, and twisting measurements was based on measurement and comparison of (1) gap distances of the right abutment replica-gold cylinder interface at buccal, distal, lingual side, (2) changes of bar length, and (3) axis angle changes of the right gold cylinders at the step of the post-correction measurements on the three groups with a contact and non-contact coordinate measuring machine. One-way analysis of variance (ANOVA) and paired t-test were performed at the significance level of 5%.</p></sec><sec><title>RESULTS</title><p>Gap distances of the cast implant bars after correction procedure showed no statistically significant difference among groups. Changes in bar length between pre-casting and post-correction measurement were statistically significance among groups. Axis angle changes of the right gold cylinders were not statistically significance among groups.</p></sec><sec><title>CONCLUSION</title><p>There was no statistical significance among three techniques in horizontal, vertical and axial errors. But, gas-air torch soldering technique showed the most consistent and accurate trend in the correction of implant bar error. However, Laser welding technique, showed a large mean and standard deviation in vertical and twisting measurement and might be technique-sensitive method.</p></sec></abstract><kwd-group><kwd>Cast implant bar</kwd><kwd>Gas-air torch soldering</kwd><kwd>Laser welding</kwd><kwd>Additional casting</kwd><kwd>Accuracy</kwd><kwd>Axis angle</kwd></kwd-group></article-meta></front><floats-group><fig id="F1" orientation="portrait" position="float"><label>Fig. 1</label><caption><p>Metal master model with two standard abutment replicas.</p></caption><graphic xlink:href="jap-6-39-g001"></graphic></fig><fig id="F2" orientation="portrait" position="float"><label>Fig. 2</label><caption><p>Transfer jig adapted to the metal master model. The transfer jig divided into two pieces bucco-lingually was used to reduce the horizontal error occurring from machining tolerance of a gold cylinder as same method with our previous study.</p></caption><graphic xlink:href="jap-6-39-g002"></graphic></fig><fig id="F3" orientation="portrait" position="float"><label>Fig. 3</label><caption><p>Two-point laser welding for the specimens of group 3 (laser welding group) before additional soldering reinforcement. Two-point laser welding vertically directed to buccal and lingual side fused the opposing edges.</p></caption><graphic xlink:href="jap-6-39-g003"></graphic></fig><fig id="F4" orientation="portrait" position="float"><label>Fig. 4</label><caption><p>Rolling and pitching movement. Axis angle consists of rolling angle and pitching angle, and rolling and pitching movement turn on its X, Y axis, respectively. Plus value means movement toward head of arrow.</p></caption><graphic xlink:href="jap-6-39-g004"></graphic></fig><fig id="F5" orientation="portrait" position="float"><label>Fig. 5</label><caption><p>Gap distances of the specimen at the postcasting (Step 2) and postcorrection measurement (Step 3) using the noncontact profile measurement machine. Four region of interest (4 squares) were captured with CCD camera at the each side, followed by measuring of interface in × 160 magnification image and finding an average of the gap distances.</p></caption><graphic xlink:href="jap-6-39-g005"></graphic></fig><fig id="F6" orientation="portrait" position="float"><label>Fig. 6</label><caption><p>Changes of bar length from step 1 to step 3. Graph shows mean and standard deviation. There was a statistically significant difference between Group 1 and Group 2, 3 and no significant difference between Group 2 and Group 3.</p></caption><graphic xlink:href="jap-6-39-g006"></graphic></fig><table-wrap id="T1" orientation="portrait" position="float"><label>Table 1</label><caption><p>Analysis of gap distances among the three groups at the post-casting and post-correction measurement</p></caption><graphic xlink:href="jap-6-39-i001"></graphic></table-wrap><table-wrap id="T2" orientation="portrait" position="float"><label>Table 2</label><caption><p>Bar lengths of the three groups</p></caption><graphic xlink:href="jap-6-39-i002"></graphic></table-wrap><table-wrap id="T3" orientation="portrait" position="float"><label>Table 3</label><caption><p>Analysis of changes of rolling and pitching angles from step 1 to step 3 among the three groups</p></caption><graphic xlink:href="jap-6-39-i003"></graphic><table-wrap-foot><fn><p>Data were shown by mean and standard deviation. The statistical analysis was performed by one-way ANOVA. There was no statistically significant difference among the three groups (<italic>P</italic>>.05).</p></fn></table-wrap-foot></table-wrap></floats-group></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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