Twist removal of healed vs. nonhealed implants—a mechanical and histological study in mini pigs
Identifieur interne : 000C83 ( Pmc/Curation ); précédent : 000C82; suivant : 000C84Twist removal of healed vs. nonhealed implants—a mechanical and histological study in mini pigs
Auteurs : Ricardo De Oliveira Silva ; Fabrício Passador ; Paulo Henrique Ferreira CariaSource :
- International Journal of Implant Dentistry [ 2198-4034 ] ; 2016.
Abstract
The objective of this study was to evaluate the effect of removal torque (reverse torque) of titanium implants in peri-implant bone.
The P1-M1 teeth were extracted bilaterally of 6 mini pigs (BR-1). Each animal received 6 titanium implants, three for each side of mandible. On the right side of mandible, 3 implants reminded 9 months (9M) under masticatory activity and on the left side, other 3 implants were placed and immediately removed (IR). All 36 implants were removed by removal torque, and the recorded values were statistically analyzed. Animals were euthanized right after the removal torque and recording. Each third (cervical, medium, and apical) of peri-implant bone was extracted and analyzed histological and immunohistochemically. Student’s
Removal torque was higher in 9M experimental situation than in IR. Histological characteristics of mature bone were presented in the 9M experimental condition, and immature bone characteristics were presented in the IR experimental condition. Removal torque caused small fractures and rounding in the bone grooving. Immunohistochemical analysis reinforced the histological results; Student’s
Removal torque caused microscopical fractures and smoothing in the peri-implant bone grooves, but it does not compromise the bone healing.
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DOI: 10.1186/s40729-016-0059-x
PubMed: 27888491
PubMed Central: 5124023
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Ricardo De Oliveira Silva<affiliation><nlm:aff id="Aff1">FOP/UNICAMP, Piracicaba, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation><affiliation><nlm:aff id="Aff2">CPG São Leopoldo Mandic, Campinas, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation><affiliation><nlm:aff id="Aff1">FOP/UNICAMP, Piracicaba, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation>Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Twist removal of healed vs. nonhealed implants—a mechanical and histological study in mini pigs</title><author><name sortKey="Silva, Ricardo De Oliveira" sort="Silva, Ricardo De Oliveira" uniqKey="Silva R" first="Ricardo De Oliveira" last="Silva">Ricardo De Oliveira Silva</name><affiliation><nlm:aff id="Aff1">FOP/UNICAMP, Piracicaba, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation></author><author><name sortKey="Passador, Fabricio" sort="Passador, Fabricio" uniqKey="Passador F" first="Fabrício" last="Passador">Fabrício Passador</name><affiliation><nlm:aff id="Aff2">CPG São Leopoldo Mandic, Campinas, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation></author><author><name sortKey="Caria, Paulo Henrique Ferreira" sort="Caria, Paulo Henrique Ferreira" uniqKey="Caria P" first="Paulo Henrique Ferreira" last="Caria">Paulo Henrique Ferreira Caria</name><affiliation><nlm:aff id="Aff1">FOP/UNICAMP, Piracicaba, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">27888491</idno><idno type="pmc">5124023</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5124023</idno><idno type="RBID">PMC:5124023</idno><idno type="doi">10.1186/s40729-016-0059-x</idno><date when="2016">2016</date><idno type="wicri:Area/Pmc/Corpus">000C83</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000C83</idno><idno type="wicri:Area/Pmc/Curation">000C83</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000C83</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Twist removal of healed vs. nonhealed implants—a mechanical and histological study in mini pigs</title><author><name sortKey="Silva, Ricardo De Oliveira" sort="Silva, Ricardo De Oliveira" uniqKey="Silva R" first="Ricardo De Oliveira" last="Silva">Ricardo De Oliveira Silva</name><affiliation><nlm:aff id="Aff1">FOP/UNICAMP, Piracicaba, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation></author><author><name sortKey="Passador, Fabricio" sort="Passador, Fabricio" uniqKey="Passador F" first="Fabrício" last="Passador">Fabrício Passador</name><affiliation><nlm:aff id="Aff2">CPG São Leopoldo Mandic, Campinas, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation></author><author><name sortKey="Caria, Paulo Henrique Ferreira" sort="Caria, Paulo Henrique Ferreira" uniqKey="Caria P" first="Paulo Henrique Ferreira" last="Caria">Paulo Henrique Ferreira Caria</name><affiliation><nlm:aff id="Aff1">FOP/UNICAMP, Piracicaba, SP Brasil</nlm:aff><wicri:noCountry code="subfield">SP Brasil</wicri:noCountry></affiliation></author></analytic><series><title level="j">International Journal of Implant Dentistry</title><idno type="eISSN">2198-4034</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Purpose</title><p>The objective of this study was to evaluate the effect of removal torque (reverse torque) of titanium implants in peri-implant bone.</p></sec><sec><title>Methods</title><p>The P1-M1 teeth were extracted bilaterally of 6 mini pigs (BR-1). Each animal received 6 titanium implants, three for each side of mandible. On the right side of mandible, 3 implants reminded 9 months (9M) under masticatory activity and on the left side, other 3 implants were placed and immediately removed (IR). All 36 implants were removed by removal torque, and the recorded values were statistically analyzed. Animals were euthanized right after the removal torque and recording. Each third (cervical, medium, and apical) of peri-implant bone was extracted and analyzed histological and immunohistochemically. Student’s <italic>t</italic> test was used to determine statistical differences in the values between the 9M and IR samples. Data were presented as means with standard deviations. The level of significance was set at 5% (<italic>P</italic> < 0.05).</p></sec><sec><title>Results</title><p>Removal torque was higher in 9M experimental situation than in IR. Histological characteristics of mature bone were presented in the 9M experimental condition, and immature bone characteristics were presented in the IR experimental condition. Removal torque caused small fractures and rounding in the bone grooving. Immunohistochemical analysis reinforced the histological results; Student’s <italic>t</italic> test provided statistically significant differences to osteocalcin expression in 9M samples and no statistically significant differences expression to collagen I in both experimental conditions (<italic>P</italic> < 0.05).</p></sec><sec><title>Conclusions</title><p>Removal torque caused microscopical fractures and smoothing in the peri-implant bone grooves, but it does not compromise the bone healing.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Br Nemark, Pi" uniqKey="Br Nemark P">PI Brånemark</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chiapasco, M" uniqKey="Chiapasco M">M Chiapasco</name></author><author><name sortKey="Gatti, C" uniqKey="Gatti C">C Gatti</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Int J Implant Dent</journal-id><journal-id journal-id-type="iso-abbrev">Int J Implant Dent</journal-id><journal-title-group><journal-title>International Journal of Implant Dentistry</journal-title></journal-title-group><issn pub-type="epub">2198-4034</issn><publisher><publisher-name>Springer Berlin Heidelberg</publisher-name><publisher-loc>Berlin/Heidelberg</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">27888491</article-id><article-id pub-id-type="pmc">5124023</article-id><article-id pub-id-type="publisher-id">59</article-id><article-id pub-id-type="doi">10.1186/s40729-016-0059-x</article-id><article-categories><subj-group subj-group-type="heading"><subject>Technical Advances Article</subject></subj-group></article-categories><title-group><article-title>Twist removal of healed vs. nonhealed implants—a mechanical and histological study in mini pigs</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name><surname>Silva</surname><given-names>Ricardo de Oliveira</given-names></name><address><email>dr.ricardodeoliveira@uol.com.br</email></address><xref ref-type="aff" rid="Aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Passador</surname><given-names>Fabrício</given-names></name><address><email>fabricio.passador@slmandic.edu.br</email></address><xref ref-type="aff" rid="Aff2">2</xref></contrib><contrib contrib-type="author"><name><surname>Caria</surname><given-names>Paulo Henrique Ferreira</given-names></name><address><email>phcaria@unicamp.br</email></address><xref ref-type="aff" rid="Aff1">1</xref></contrib><aff id="Aff1"><label>1</label>FOP/UNICAMP, Piracicaba, SP Brasil</aff><aff id="Aff2"><label>2</label>CPG São Leopoldo Mandic, Campinas, SP Brasil</aff></contrib-group><pub-date pub-type="epub"><day>25</day><month>11</month><year>2016</year></pub-date><pub-date pub-type="pmc-release"><day>25</day><month>11</month><year>2016</year></pub-date><pub-date pub-type="collection"><month>12</month><year>2016</year></pub-date><volume>2</volume><elocation-id>23</elocation-id><history><date date-type="received"><day>27</day><month>4</month><year>2016</year></date><date date-type="accepted"><day>18</day><month>11</month><year>2016</year></date></history><permissions><copyright-statement>© The Author(s). 2016</copyright-statement><license license-type="OpenAccess"><license-p><bold>Open Access</bold>This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.</license-p></license></permissions><abstract id="Abs1"><sec><title>Purpose</title><p>The objective of this study was to evaluate the effect of removal torque (reverse torque) of titanium implants in peri-implant bone.</p></sec><sec><title>Methods</title><p>The P1-M1 teeth were extracted bilaterally of 6 mini pigs (BR-1). Each animal received 6 titanium implants, three for each side of mandible. On the right side of mandible, 3 implants reminded 9 months (9M) under masticatory activity and on the left side, other 3 implants were placed and immediately removed (IR). All 36 implants were removed by removal torque, and the recorded values were statistically analyzed. Animals were euthanized right after the removal torque and recording. Each third (cervical, medium, and apical) of peri-implant bone was extracted and analyzed histological and immunohistochemically. Student’s <italic>t</italic> test was used to determine statistical differences in the values between the 9M and IR samples. Data were presented as means with standard deviations. The level of significance was set at 5% (<italic>P</italic> < 0.05).</p></sec><sec><title>Results</title><p>Removal torque was higher in 9M experimental situation than in IR. Histological characteristics of mature bone were presented in the 9M experimental condition, and immature bone characteristics were presented in the IR experimental condition. Removal torque caused small fractures and rounding in the bone grooving. Immunohistochemical analysis reinforced the histological results; Student’s <italic>t</italic> test provided statistically significant differences to osteocalcin expression in 9M samples and no statistically significant differences expression to collagen I in both experimental conditions (<italic>P</italic> < 0.05).</p></sec><sec><title>Conclusions</title><p>Removal torque caused microscopical fractures and smoothing in the peri-implant bone grooves, but it does not compromise the bone healing.</p></sec></abstract><kwd-group xml:lang="en"><title>Keywords</title><kwd>Removal torque</kwd><kwd>Peri-implant bone</kwd><kwd>Dental implant</kwd><kwd>Mini pigs</kwd><kwd>Reverse torque</kwd></kwd-group><funding-group><award-group><funding-source><institution>CAPES</institution></funding-source><award-id>33003033001P3</award-id><principal-award-recipient><name><surname>Silva</surname><given-names>Ricardo de Oliveira</given-names></name></principal-award-recipient></award-group></funding-group><custom-meta-group><custom-meta><meta-name>issue-copyright-statement</meta-name><meta-value>© The Author(s) 2016</meta-value></custom-meta></custom-meta-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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