Development of implant loading device for animal study about various loading protocol: a pilot study
Identifieur interne : 002E79 ( Pmc/Curation ); précédent : 002E78; suivant : 002E80Development of implant loading device for animal study about various loading protocol: a pilot study
Auteurs : Joon-Ho Yoon [Corée du Sud] ; Young-Bum Park [Corée du Sud] ; Yuna Cho [Corée du Sud] ; Chang-Sung Kim [Corée du Sud] ; Seong-Ho Choi [Corée du Sud] ; Hong-Seok Moon [Corée du Sud] ; Keun-Woo Lee [Corée du Sud] ; June-Sung Shim [Corée du Sud]Source :
- The Journal of Advanced Prosthodontics [ 2005-7806 ] ; 2012.
Abstract
The aims of this pilot study were to introduce implant loading devices designed for animal study and to evaluate the validity of the load transmission ability of the loading devices.
Implant loading devices were specially designed and fabricated with two implant abutments and cast metal bars, and orthodontic expansion screw. In six Beagles, all premolars were extracted and two implants were placed in each side of the mandibles. The loading device was inserted two weeks after the implant placement. According to the loading protocol, the load was applied to the implants with different time and method,simulating early, progressive, and delayed loading. The implants were clinically evaluated and the loading devices were removed and replaced to the master cast, followed by stress-strain analysis. Descriptive statistics of remained strain (µε) was evaluated after repeating three cycles of the loading device activation. Statistic analysis was performed using nonparametric, independent t-test with 5% significance level and Friedman's test was also used for verification.
The loading devices were in good action. However, four implants in three Beagles showed loss of osseointegration. In stress-strain analysis, loading devices showed similar amount of increase in the remained strain after applying 1-unit load for three times.
Specialized design of the implant loading device was introduced. The loading device applied similar amount of loads near the implant after each 1-unit loading. However, the direction of the loads was not parallel to the long axis of the implants as predicted before the study.
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DOI: 10.4047/jap.2012.4.4.227
PubMed: 23236575
PubMed Central: 3517961
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Development of implant loading device for animal study about various loading protocol: a pilot study</title><author><name sortKey="Yoon, Joon Ho" sort="Yoon, Joon Ho" uniqKey="Yoon J" first="Joon-Ho" last="Yoon">Joon-Ho Yoon</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Park, Young Bum" sort="Park, Young Bum" uniqKey="Park Y" first="Young-Bum" last="Park">Young-Bum Park</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Cho, Yuna" sort="Cho, Yuna" uniqKey="Cho Y" first="Yuna" last="Cho">Yuna Cho</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Chang Sung" sort="Kim, Chang Sung" uniqKey="Kim C" first="Chang-Sung" last="Kim">Chang-Sung Kim</name><affiliation wicri:level="1"><nlm:aff id="A2">Department of Periodontology, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Periodontology, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Choi, Seong Ho" sort="Choi, Seong Ho" uniqKey="Choi S" first="Seong-Ho" last="Choi">Seong-Ho Choi</name><affiliation wicri:level="1"><nlm:aff id="A2">Department of Periodontology, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Periodontology, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Moon, Hong Seok" sort="Moon, Hong Seok" uniqKey="Moon H" first="Hong-Seok" last="Moon">Hong-Seok Moon</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Lee, Keun Woo" sort="Lee, Keun Woo" uniqKey="Lee K" first="Keun-Woo" last="Lee">Keun-Woo Lee</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Shim, June Sung" sort="Shim, June Sung" uniqKey="Shim J" first="June-Sung" last="Shim">June-Sung Shim</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">23236575</idno><idno type="pmc">3517961</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3517961</idno><idno type="RBID">PMC:3517961</idno><idno type="doi">10.4047/jap.2012.4.4.227</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">002E79</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002E79</idno><idno type="wicri:Area/Pmc/Curation">002E79</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">002E79</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Development of implant loading device for animal study about various loading protocol: a pilot study</title><author><name sortKey="Yoon, Joon Ho" sort="Yoon, Joon Ho" uniqKey="Yoon J" first="Joon-Ho" last="Yoon">Joon-Ho Yoon</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Park, Young Bum" sort="Park, Young Bum" uniqKey="Park Y" first="Young-Bum" last="Park">Young-Bum Park</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Cho, Yuna" sort="Cho, Yuna" uniqKey="Cho Y" first="Yuna" last="Cho">Yuna Cho</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Chang Sung" sort="Kim, Chang Sung" uniqKey="Kim C" first="Chang-Sung" last="Kim">Chang-Sung Kim</name><affiliation wicri:level="1"><nlm:aff id="A2">Department of Periodontology, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Periodontology, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Choi, Seong Ho" sort="Choi, Seong Ho" uniqKey="Choi S" first="Seong-Ho" last="Choi">Seong-Ho Choi</name><affiliation wicri:level="1"><nlm:aff id="A2">Department of Periodontology, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Periodontology, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Moon, Hong Seok" sort="Moon, Hong Seok" uniqKey="Moon H" first="Hong-Seok" last="Moon">Hong-Seok Moon</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Lee, Keun Woo" sort="Lee, Keun Woo" uniqKey="Lee K" first="Keun-Woo" last="Lee">Keun-Woo Lee</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Shim, June Sung" sort="Shim, June Sung" uniqKey="Shim J" first="June-Sung" last="Shim">June-Sung Shim</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Yonsei University College of Dentistry, 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="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>PURPOSE</title><p>The aims of this pilot study were to introduce implant loading devices designed for animal study and to evaluate the validity of the load transmission ability of the loading devices.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Implant loading devices were specially designed and fabricated with two implant abutments and cast metal bars, and orthodontic expansion screw. In six Beagles, all premolars were extracted and two implants were placed in each side of the mandibles. The loading device was inserted two weeks after the implant placement. According to the loading protocol, the load was applied to the implants with different time and method,simulating early, progressive, and delayed loading. The implants were clinically evaluated and the loading devices were removed and replaced to the master cast, followed by stress-strain analysis. Descriptive statistics of remained strain (µε) was evaluated after repeating three cycles of the loading device activation. Statistic analysis was performed using nonparametric, independent t-test with 5% significance level and Friedman's test was also used for verification.</p></sec><sec><title>RESULTS</title><p>The loading devices were in good action. However, four implants in three Beagles showed loss of osseointegration. In stress-strain analysis, loading devices showed similar amount of increase in the remained strain after applying 1-unit load for three times.</p></sec><sec><title>CONCLUSION</title><p>Specialized design of the implant loading device was introduced. The loading device applied similar amount of loads near the implant after each 1-unit loading. 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<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">23236575</article-id><article-id pub-id-type="pmc">3517961</article-id><article-id pub-id-type="doi">10.4047/jap.2012.4.4.227</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject></subj-group></article-categories><title-group><article-title>Development of implant loading device for animal study about various loading protocol: a pilot study</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Yoon</surname><given-names>Joon-Ho</given-names></name><degrees>DDS</degrees><degrees>PhD</degrees><xref ref-type="aff" rid="A1">1</xref><xref ref-type="author-notes" rid="FN1">†</xref></contrib><contrib contrib-type="author"><name><surname>Park</surname><given-names>Young-Bum</given-names></name><degrees>DDS</degrees><degrees>PhD</degrees><xref ref-type="aff" rid="A1">1</xref><xref ref-type="author-notes" rid="FN1">†</xref></contrib><contrib contrib-type="author"><name><surname>Cho</surname><given-names>Yuna</given-names></name><degrees>DDS</degrees><degrees>PhD</degrees><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Kim</surname><given-names>Chang-Sung</given-names></name><degrees>DDS</degrees><degrees>PhD</degrees><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><name><surname>Choi</surname><given-names>Seong-Ho</given-names></name><degrees>DDS</degrees><degrees>PhD</degrees><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><name><surname>Moon</surname><given-names>Hong-Seok</given-names></name><degrees>DDS</degrees><degrees>PhD</degrees><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Lee</surname><given-names>Keun-Woo</given-names></name><degrees>DDS</degrees><degrees>PhD</degrees><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author" corresp="yes"><name><surname>Shim</surname><given-names>June-Sung</given-names></name><degrees>DDS</degrees><degrees>PhD</degrees><xref ref-type="aff" rid="A1">1</xref></contrib></contrib-group><aff id="A1"><label>1</label>Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.</aff><aff id="A2"><label>2</label>Department of Periodontology, Yonsei University College of Dentistry, Seoul, Korea.</aff><author-notes><corresp>Corresponding author: June-Sung Shim. Department of Prosthodontics, Yonsei University College of Dentistry, 50 Yonsei-Ro, Seodaemun-Gu, Seoul, Korea. Tel. 82 2 2228 8713: <email>jfshim@yuhs.ac</email></corresp><fn id="FN1" fn-type="equal"><p><sup>†</sup>These authors are equally contributed to this work.</p></fn></author-notes><pub-date pub-type="ppub"><month>11</month><year>2012</year></pub-date><pub-date pub-type="epub"><day>29</day><month>11</month><year>2012</year></pub-date><volume>4</volume><issue>4</issue><fpage>227</fpage><lpage>234</lpage><history><date date-type="received"><day>21</day><month>10</month><year>2012</year></date><date date-type="rev-recd"><day>06</day><month>11</month><year>2012</year></date><date date-type="accepted"><day>12</day><month>11</month><year>2012</year></date></history><permissions><copyright-statement>© 2012 The Korean Academy of Prosthodontics</copyright-statement><copyright-year>2012</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 pilot study were to introduce implant loading devices designed for animal study and to evaluate the validity of the load transmission ability of the loading devices.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Implant loading devices were specially designed and fabricated with two implant abutments and cast metal bars, and orthodontic expansion screw. In six Beagles, all premolars were extracted and two implants were placed in each side of the mandibles. The loading device was inserted two weeks after the implant placement. According to the loading protocol, the load was applied to the implants with different time and method,simulating early, progressive, and delayed loading. The implants were clinically evaluated and the loading devices were removed and replaced to the master cast, followed by stress-strain analysis. Descriptive statistics of remained strain (µε) was evaluated after repeating three cycles of the loading device activation. Statistic analysis was performed using nonparametric, independent t-test with 5% significance level and Friedman's test was also used for verification.</p></sec><sec><title>RESULTS</title><p>The loading devices were in good action. However, four implants in three Beagles showed loss of osseointegration. In stress-strain analysis, loading devices showed similar amount of increase in the remained strain after applying 1-unit load for three times.</p></sec><sec><title>CONCLUSION</title><p>Specialized design of the implant loading device was introduced. The loading device applied similar amount of loads near the implant after each 1-unit loading. However, the direction of the loads was not parallel to the long axis of the implants as predicted before the study.</p></sec></abstract><kwd-group><kwd>Dental Implants</kwd><kwd>Osseointegration</kwd><kwd>Dental stress analysis</kwd><kwd>Immediate dental implant loading</kwd><kwd>Animal experimentation</kwd></kwd-group></article-meta></front><floats-group><fig id="F1" position="float"><label>Fig. 1</label><caption><p>Loading protocols. EL: early loading, PL: periodic loading, Pm: periodic loading, rotation mobile, DL: delayed loading.</p></caption><graphic xlink:href="jap-4-227-g001"></graphic></fig><fig id="F2" position="float"><label>Fig. 2</label><caption><p>Implant placement and impression taking. A: The implants were placed 10 mm apart, remaining 2 mm of buccal and lingual cortex, B: Impression was taken with impression copings and pattern resin.</p></caption><graphic xlink:href="jap-4-227-g002"></graphic></fig><fig id="F3" position="float"><label>Fig. 3</label><caption><p>Diagram of the loading device. A: A schematic illustration of the loading device, B: The direction of force applied to the implant and the surrounding alveolar bone.</p></caption><graphic xlink:href="jap-4-227-g003"></graphic></fig><fig id="F4" position="float"><label>Fig. 4</label><caption><p>Measurement of efficiency of the loading device with strain gauge. Three strain gauges were attached on the distal side of both implants and on the center of both implants.</p></caption><graphic xlink:href="jap-4-227-g004"></graphic></fig><fig id="F5" position="float"><label>Fig. 5</label><caption><p>Representative illustration of stress-strain curve over time.</p></caption><graphic xlink:href="jap-4-227-g005"></graphic></fig><table-wrap id="T1" position="float"><label>Table 1</label><caption><p>The experimental design</p></caption><graphic xlink:href="jap-4-227-i001"></graphic></table-wrap><table-wrap id="T2" position="float"><label>Table 2</label><caption><p>Grouping, initial stability, remarkable events and the timing of event of each implants</p></caption><graphic xlink:href="jap-4-227-i002"></graphic><table-wrap-foot><fn><p><sup>*</sup>L: Left, R: Right, M: Mesial, D: Distal.</p><p><sup>§</sup>EL: Early loaded, PL: Progressively loaded, Pm: Progressively loaded, rotation mobile, DL: delayed loaded</p><p><sup>¶</sup>Initial stability is recorded as good when the implant stability quotient (ISQ) value exceeds 60 while ISQ value beyond 60 is recorded as poor.</p></fn></table-wrap-foot></table-wrap><table-wrap id="T3" position="float"><label>Table 3</label><caption><p>Mean absolute value of remained strain after loading</p></caption><graphic xlink:href="jap-4-227-i003"></graphic><table-wrap-foot><fn><p><sup>*</sup>a = b = c (<italic>P</italic>=.532, Chi-square = 1.263, df = 2, by Friedman's test with 95% significant level)</p></fn></table-wrap-foot></table-wrap><table-wrap id="T4" position="float"><label>Table 4</label><caption><p>Changed strain value after each 1-unit loading on each implant</p></caption><graphic xlink:href="jap-4-227-i004"></graphic><table-wrap-foot><fn><p>L: Left, R: Righ, M: Mesial, D: Distal.</p><p>µε<sup>1</sup>: Changed strain after 1<sup>st</sup> loading; µε<sup>2</sup>: Changed strain after 2<sup>nd</sup> loading; µε<sup>3</sup>: Changed strain after 3<sup>rd</sup> loading, + tension, - compression.</p><p>Data of vacant cells were excluded due to irregular strain pattern.</p></fn></table-wrap-foot></table-wrap></floats-group></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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