Stress analysis of mandibular implant overdenture with locator and bar/clip attachment: Comparative study with differences in the denture base length
Identifieur interne : 007069 ( Ncbi/Merge ); précédent : 007068; suivant : 007070Stress analysis of mandibular implant overdenture with locator and bar/clip attachment: Comparative study with differences in the denture base length
Auteurs : Jin Suk Yoo [Corée du Sud] ; Kung-Rock Kwon [Corée du Sud] ; Kwantae Noh [Corée du Sud] ; Hyeonjong Lee [Corée du Sud] ; Janghyun Paek [Corée du Sud]Source :
- The Journal of Advanced Prosthodontics [ 2005-7806 ] ; 2017.
Abstract
The design of the attachment must provide an optimum stress distribution around the implant. In this study, for implant overdentures with a bar/clip attachment or a locator attachment, the stress transmitted to the implant in accordance with the change in the denture base length and the vertical pressure was measured and analyzed.
Test model was created with epoxy resin. The strain gauges made a tight contact with implant surfaces. A universal testing machine was used to exert a vertical pressure on the mandibular implant overdenture and the strain rate of the implants was measured.
Means and standard deviations of the maximum micro-deformation rates were determined. 1) Locator attachment: The implants on the working side generally showed higher strain than those on the non-working side. Tensile force was observed on the mesial surface of the implant on the working side, and the compressive force was applied to the buccal surface and on the surfaces of the implant on the non-working side. 2) Bar/clip attachment: The implants on the both non-working and working sides showed high strain; all surfaces except the mesial surface of the implant on the non-working side showed a compressive force.
To minimize the strain on implants in mandibular implant overdentures, the attachment of the implant should be carefully selected and the denture base should be extended as much as possible.
Url:
DOI: 10.4047/jap.2017.9.3.143
PubMed: 28680544
PubMed Central: 5483399
Links toward previous steps (curation, corpus...)
- to stream Pmc, to step Corpus: 002F27
- to stream Pmc, to step Curation: 002F27
- to stream Pmc, to step Checkpoint: 000049
Links to Exploration step
PMC:5483399Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Stress analysis of mandibular implant overdenture with locator and bar/clip attachment: Comparative study with differences in the denture base length</title><author><name sortKey="Yoo, Jin Suk" sort="Yoo, Jin Suk" uniqKey="Yoo J" first="Jin Suk" last="Yoo">Jin Suk Yoo</name><affiliation wicri:level="3"><nlm:aff id="A1">Private Practice, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Private Practice, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Kwon, Kung Rock" sort="Kwon, Kung Rock" uniqKey="Kwon K" first="Kung-Rock" last="Kwon">Kung-Rock Kwon</name><affiliation wicri:level="3"><nlm:aff id="A2">Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Noh, Kwantae" sort="Noh, Kwantae" uniqKey="Noh K" first="Kwantae" last="Noh">Kwantae Noh</name><affiliation wicri:level="3"><nlm:aff id="A2">Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Lee, Hyeonjong" sort="Lee, Hyeonjong" uniqKey="Lee H" first="Hyeonjong" last="Lee">Hyeonjong Lee</name><affiliation wicri:level="3"><nlm:aff id="A2">Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Paek, Janghyun" sort="Paek, Janghyun" uniqKey="Paek J" first="Janghyun" last="Paek">Janghyun Paek</name><affiliation wicri:level="3"><nlm:aff id="A2">Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">28680544</idno><idno type="pmc">5483399</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5483399</idno><idno type="RBID">PMC:5483399</idno><idno type="doi">10.4047/jap.2017.9.3.143</idno><date when="2017">2017</date><idno type="wicri:Area/Pmc/Corpus">002F27</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002F27</idno><idno type="wicri:Area/Pmc/Curation">002F27</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">002F27</idno><idno type="wicri:Area/Pmc/Checkpoint">000049</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000049</idno><idno type="wicri:Area/Ncbi/Merge">007069</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Stress analysis of mandibular implant overdenture with locator and bar/clip attachment: Comparative study with differences in the denture base length</title><author><name sortKey="Yoo, Jin Suk" sort="Yoo, Jin Suk" uniqKey="Yoo J" first="Jin Suk" last="Yoo">Jin Suk Yoo</name><affiliation wicri:level="3"><nlm:aff id="A1">Private Practice, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Private Practice, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Kwon, Kung Rock" sort="Kwon, Kung Rock" uniqKey="Kwon K" first="Kung-Rock" last="Kwon">Kung-Rock Kwon</name><affiliation wicri:level="3"><nlm:aff id="A2">Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Noh, Kwantae" sort="Noh, Kwantae" uniqKey="Noh K" first="Kwantae" last="Noh">Kwantae Noh</name><affiliation wicri:level="3"><nlm:aff id="A2">Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Lee, Hyeonjong" sort="Lee, Hyeonjong" uniqKey="Lee H" first="Hyeonjong" last="Lee">Hyeonjong Lee</name><affiliation wicri:level="3"><nlm:aff id="A2">Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Paek, Janghyun" sort="Paek, Janghyun" uniqKey="Paek J" first="Janghyun" last="Paek">Janghyun Paek</name><affiliation wicri:level="3"><nlm:aff id="A2">Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></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="2017">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>PURPOSE</title><p>The design of the attachment must provide an optimum stress distribution around the implant. In this study, for implant overdentures with a bar/clip attachment or a locator attachment, the stress transmitted to the implant in accordance with the change in the denture base length and the vertical pressure was measured and analyzed.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Test model was created with epoxy resin. The strain gauges made a tight contact with implant surfaces. A universal testing machine was used to exert a vertical pressure on the mandibular implant overdenture and the strain rate of the implants was measured.</p></sec><sec><title>RESULTS</title><p>Means and standard deviations of the maximum micro-deformation rates were determined. 1) Locator attachment: The implants on the working side generally showed higher strain than those on the non-working side. Tensile force was observed on the mesial surface of the implant on the working side, and the compressive force was applied to the buccal surface and on the surfaces of the implant on the non-working side. 2) Bar/clip attachment: The implants on the both non-working and working sides showed high strain; all surfaces except the mesial surface of the implant on the non-working side showed a compressive force.</p></sec><sec><title>CONCLUSION</title><p>To minimize the strain on implants in mandibular implant overdentures, the attachment of the implant should be carefully selected and the denture base should be extended as much as possible.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Doundoulakis, Jh" uniqKey="Doundoulakis J">JH Doundoulakis</name></author><author><name sortKey="Eckert, Se" uniqKey="Eckert S">SE Eckert</name></author><author><name sortKey="Lindquist, Cc" uniqKey="Lindquist C">CC Lindquist</name></author><author><name sortKey="Jeffcoat, Mk" uniqKey="Jeffcoat M">MK Jeffcoat</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Feine, Js" uniqKey="Feine J">JS Feine</name></author><author><name sortKey="Carlsson, Ge" uniqKey="Carlsson G">GE Carlsson</name></author><author><name sortKey="Awad, Ma" uniqKey="Awad M">MA Awad</name></author><author><name sortKey="Chehade, A" uniqKey="Chehade A">A Chehade</name></author><author><name sortKey="Duncan, Wj" uniqKey="Duncan W">WJ Duncan</name></author><author><name sortKey="Gizani, S" uniqKey="Gizani S">S Gizani</name></author><author><name sortKey="Head, T" uniqKey="Head T">T Head</name></author><author><name sortKey="Heydecke, G" uniqKey="Heydecke G">G Heydecke</name></author><author><name sortKey="Lund, Jp" uniqKey="Lund J">JP Lund</name></author><author><name sortKey="Macentee, M" uniqKey="Macentee M">M MacEntee</name></author><author><name sortKey="Mericske Stern, R" uniqKey="Mericske Stern R">R Mericske-Stern</name></author><author><name sortKey="Mojon, P" uniqKey="Mojon P">P Mojon</name></author><author><name sortKey="Morais, Ja" uniqKey="Morais J">JA Morais</name></author><author><name sortKey="Naert, I" uniqKey="Naert I">I Naert</name></author><author><name sortKey="Payne, Ag" uniqKey="Payne A">AG Payne</name></author><author><name sortKey="Penrod, J" uniqKey="Penrod J">J Penrod</name></author><author><name sortKey="Stoker, Gt" uniqKey="Stoker G">GT Stoker</name></author><author><name sortKey="Tawse Smith, A" uniqKey="Tawse Smith A">A Tawse-Smith</name></author><author><name sortKey="Taylor, Td" uniqKey="Taylor T">TD Taylor</name></author><author><name sortKey="Thomason, Jm" uniqKey="Thomason J">JM Thomason</name></author><author><name sortKey="Thomson, Wm" uniqKey="Thomson W">WM Thomson</name></author><author><name sortKey="Wismeijer, D" uniqKey="Wismeijer D">D Wismeijer</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Burns, Dr" uniqKey="Burns D">DR Burns</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jemt, T" uniqKey="Jemt T">T Jemt</name></author><author><name sortKey="Carlsson, L" uniqKey="Carlsson L">L Carlsson</name></author><author><name sortKey="Boss, A" uniqKey="Boss A">A Boss</name></author><author><name sortKey="Jorneus, L" uniqKey="Jorneus L">L Jörneús</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Naert, I" uniqKey="Naert I">I Naert</name></author><author><name sortKey="De Clercq, M" uniqKey="De Clercq M">M De Clercq</name></author><author><name sortKey="Theuniers, G" uniqKey="Theuniers G">G Theuniers</name></author><author><name sortKey="Schepers, E" uniqKey="Schepers E">E Schepers</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Mericske Stern, R" uniqKey="Mericske Stern R">R Mericske-Stern</name></author><author><name sortKey="Geering, Ah" uniqKey="Geering A">AH Geering</name></author><author><name sortKey="Burgin, Wb" uniqKey="Burgin W">WB Burgin</name></author><author><name sortKey="Graf, H" uniqKey="Graf H">H Graf</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Setz, J" uniqKey="Setz J">J Setz</name></author><author><name sortKey="Kr Mer, A" uniqKey="Kr Mer A">A Krämer</name></author><author><name sortKey="Benzing, U" uniqKey="Benzing U">U Benzing</name></author><author><name sortKey="Weber, H" uniqKey="Weber H">H Weber</name></author></analytic></biblStruct><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="Tokuhisa, M" uniqKey="Tokuhisa M">M Tokuhisa</name></author><author><name sortKey="Matsushita, Y" uniqKey="Matsushita Y">Y Matsushita</name></author><author><name sortKey="Koyano, K" uniqKey="Koyano K">K Koyano</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="El Sheikh, Am" uniqKey="El Sheikh A">AM el-Sheikh</name></author><author><name sortKey="Hobkirk, Ja" uniqKey="Hobkirk J">JA Hobkirk</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Porter, Ja" uniqKey="Porter J">JA Porter</name></author><author><name sortKey="Petropoulos, Vc" uniqKey="Petropoulos V">VC Petropoulos</name></author><author><name sortKey="Brunski, Jb" uniqKey="Brunski J">JB Brunski</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Heckmann, Sm" uniqKey="Heckmann S">SM Heckmann</name></author><author><name sortKey="Winter, W" uniqKey="Winter W">W Winter</name></author><author><name sortKey="Meyer, M" uniqKey="Meyer M">M Meyer</name></author><author><name sortKey="Weber, Hp" uniqKey="Weber H">HP Weber</name></author><author><name sortKey="Wichmann, Mg" uniqKey="Wichmann M">MG Wichmann</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Meijer, Hj" uniqKey="Meijer H">HJ Meijer</name></author><author><name sortKey="Kuiper, Jh" uniqKey="Kuiper J">JH Kuiper</name></author><author><name sortKey="Starmans, Fj" uniqKey="Starmans F">FJ Starmans</name></author><author><name sortKey="Bosman, F" uniqKey="Bosman F">F Bosman</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Rosa, Lb" uniqKey="Rosa L">LB Rosa</name></author><author><name sortKey="Bataglion, C" uniqKey="Bataglion C">C Bataglion</name></author><author><name sortKey="Siessere, S" uniqKey="Siessere S">S Siéssere</name></author><author><name sortKey="Palinkas, M" uniqKey="Palinkas M">M Palinkas</name></author><author><name sortKey="Mestriner, W" uniqKey="Mestriner W">W Mestriner</name></author><author><name sortKey="De Freitas, O" uniqKey="De Freitas O">O de Freitas</name></author><author><name sortKey="De Rossi, M" uniqKey="De Rossi M">M de Rossi</name></author><author><name sortKey="De Oliveira, Lf" uniqKey="De Oliveira L">LF de Oliveira</name></author><author><name sortKey="Regalo, Sch" uniqKey="Regalo S">SCH Regalo</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Federick, Dr" uniqKey="Federick D">DR Federick</name></author><author><name sortKey="Caputo, Aa" uniqKey="Caputo A">AA Caputo</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Menicucci, G" uniqKey="Menicucci G">G Menicucci</name></author><author><name sortKey="Lorenzetti, M" uniqKey="Lorenzetti M">M Lorenzetti</name></author><author><name sortKey="Pera, P" uniqKey="Pera P">P Pera</name></author><author><name sortKey="Preti, G" uniqKey="Preti G">G Preti</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Meijer, Hj" uniqKey="Meijer H">HJ Meijer</name></author><author><name sortKey="Starmans, Fj" uniqKey="Starmans F">FJ Starmans</name></author><author><name sortKey="Steen, Wh" uniqKey="Steen W">WH Steen</name></author><author><name sortKey="Bosman, F" uniqKey="Bosman F">F Bosman</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Meijer, Hj" uniqKey="Meijer H">HJ Meijer</name></author><author><name sortKey="Starmans, Fj" uniqKey="Starmans F">FJ Starmans</name></author><author><name sortKey="Steen, Wh" uniqKey="Steen W">WH Steen</name></author><author><name sortKey="Bosman, F" uniqKey="Bosman F">F Bosman</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Menicucci, G" uniqKey="Menicucci G">G Menicucci</name></author><author><name sortKey="Lorenzetti, M" uniqKey="Lorenzetti M">M Lorenzetti</name></author><author><name sortKey="Pera, P" uniqKey="Pera P">P Pera</name></author><author><name sortKey="Preti, G" uniqKey="Preti G">G Preti</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Duyck, J" uniqKey="Duyck J">J Duyck</name></author><author><name sortKey="Van Oosterwyck, H" uniqKey="Van Oosterwyck H">H Van Oosterwyck</name></author><author><name sortKey="Vander Sloten, J" uniqKey="Vander Sloten J">J Vander Sloten</name></author><author><name sortKey="De Cooman, M" uniqKey="De Cooman M">M De Cooman</name></author><author><name sortKey="Puers, R" uniqKey="Puers R">R Puers</name></author><author><name sortKey="Naert, I" uniqKey="Naert I">I Naert</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sadowsky, Sj" uniqKey="Sadowsky S">SJ Sadowsky</name></author><author><name sortKey="Caputo, Aa" uniqKey="Caputo A">AA Caputo</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Trakas, T" uniqKey="Trakas T">T Trakas</name></author><author><name sortKey="Michalakis, K" uniqKey="Michalakis K">K Michalakis</name></author><author><name sortKey="Kang, K" uniqKey="Kang K">K Kang</name></author><author><name sortKey="Hirayama, H" uniqKey="Hirayama H">H Hirayama</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">28680544</article-id><article-id pub-id-type="pmc">5483399</article-id><article-id pub-id-type="doi">10.4047/jap.2017.9.3.143</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject></subj-group></article-categories><title-group><article-title>Stress analysis of mandibular implant overdenture with locator and bar/clip attachment: Comparative study with differences in the denture base length</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Yoo</surname><given-names>Jin Suk</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="true">https://orcid.org/0000-0002-9777-8980</contrib-id><name><surname>Kwon</surname><given-names>Kung-Rock</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="true">https://orcid.org/0000-0003-3480-7737</contrib-id><name><surname>Noh</surname><given-names>Kwantae</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="true">https://orcid.org/0000-0002-1669-2975</contrib-id><name><surname>Lee</surname><given-names>Hyeonjong</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid" authenticated="true">https://orcid.org/0000-0002-1286-3140</contrib-id><name><surname>Paek</surname><given-names>Janghyun</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib></contrib-group><aff id="A1"><label>1</label>Private Practice, Seoul, Republic of Korea.</aff><aff id="A2"><label>2</label>Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.</aff><author-notes><corresp>Corresponding author: Janghyun Paek. Department of Prosthodontics, Kyunghee University Dental Hospital, 23, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea. Tel: +8229589340: <email>jp2703@khu.ac.kr</email></corresp></author-notes><pub-date pub-type="ppub"><month>6</month><year>2017</year></pub-date><pub-date pub-type="epub"><day>19</day><month>6</month><year>2017</year></pub-date><volume>9</volume><issue>3</issue><fpage>143</fpage><lpage>151</lpage><history><date date-type="received"><day>04</day><month>7</month><year>2016</year></date><date date-type="rev-recd"><day>20</day><month>9</month><year>2016</year></date><date date-type="accepted"><day>11</day><month>10</month><year>2016</year></date></history><permissions><copyright-statement>© 2017 The Korean Academy of Prosthodontics</copyright-statement><copyright-year>2017</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 design of the attachment must provide an optimum stress distribution around the implant. In this study, for implant overdentures with a bar/clip attachment or a locator attachment, the stress transmitted to the implant in accordance with the change in the denture base length and the vertical pressure was measured and analyzed.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Test model was created with epoxy resin. The strain gauges made a tight contact with implant surfaces. A universal testing machine was used to exert a vertical pressure on the mandibular implant overdenture and the strain rate of the implants was measured.</p></sec><sec><title>RESULTS</title><p>Means and standard deviations of the maximum micro-deformation rates were determined. 1) Locator attachment: The implants on the working side generally showed higher strain than those on the non-working side. Tensile force was observed on the mesial surface of the implant on the working side, and the compressive force was applied to the buccal surface and on the surfaces of the implant on the non-working side. 2) Bar/clip attachment: The implants on the both non-working and working sides showed high strain; all surfaces except the mesial surface of the implant on the non-working side showed a compressive force.</p></sec><sec><title>CONCLUSION</title><p>To minimize the strain on implants in mandibular implant overdentures, the attachment of the implant should be carefully selected and the denture base should be extended as much as possible.</p></sec></abstract><kwd-group><kwd>Mandibular Overdenture</kwd><kwd>Stress Analysis</kwd><kwd>Locator</kwd><kwd>Bar/Clip</kwd><kwd>Denture Base Length</kwd></kwd-group></article-meta></front><floats-group><fig id="F1" orientation="portrait" position="float"><label>Fig. 1</label><caption><title>Location of the strain gauge on implant. (A) Buccal surface of #43 implant, lingual surface of #33 implant, (B) Mesial surface of #43 implant, distal surface of #33 implant.</title></caption><graphic xlink:href="jap-9-143-g001"></graphic></fig><fig id="F2" orientation="portrait" position="float"><label>Fig. 2</label><caption><title>Three types of vertical load were transferred to the experimental models. (A) Load was applied on the right mandibular first molar area, (B) Load was applied on the right posterior area, (C) Load was applied on the mandibular entire edentulous area.</title></caption><graphic xlink:href="jap-9-143-g002"></graphic></fig><fig id="F3" orientation="portrait" position="float"><label>Fig. 3</label><caption><title>Extension of denture base was divided into three groups. (A) Group 1, (B) Group 2, (C) Group 3.</title></caption><graphic xlink:href="jap-9-143-g003"></graphic></fig><fig id="F4" orientation="portrait" position="float"><label>Fig. 4</label><caption><title>Mean strain values (µm/m) when the mandibular right first molar area was pressed.</title></caption><graphic xlink:href="jap-9-143-g004"></graphic></fig><fig id="F5" orientation="portrait" position="float"><label>Fig. 5</label><caption><title>Mean strain values (µm/m) when the mandibular right premolar and molar area are pressed.</title></caption><graphic xlink:href="jap-9-143-g005"></graphic></fig><fig id="F6" orientation="portrait" position="float"><label>Fig. 6</label><caption><title>Mean strain values (µm/m) when the entire surface of the mandibular overdenture is pressed.</title></caption><graphic xlink:href="jap-9-143-g006"></graphic></fig><table-wrap id="T1" orientation="portrait" position="float"><label>Table 1</label><caption><title>Mean strain values (µm/m) and SD of Group 1 (n = 10)</title></caption><alternatives><graphic xlink:href="jap-9-143-i001"></graphic><table frame="hsides" rules="rows"><col width="4%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><thead><tr><th valign="top" align="center" rowspan="3" colspan="1"></th><th valign="top" align="center" rowspan="1" colspan="8">Locator</th><th valign="top" align="center" rowspan="1" colspan="8">Bar</th></tr><tr><th valign="top" align="center" rowspan="1" colspan="2">43iB</th><th valign="top" align="center" rowspan="1" colspan="2">43iM</th><th valign="top" align="center" rowspan="1" colspan="2">33iL</th><th valign="top" align="center" rowspan="1" colspan="2">33iD</th><th valign="top" align="center" rowspan="1" colspan="2">43iB</th><th valign="top" align="center" rowspan="1" colspan="2">43iM</th><th valign="top" align="center" rowspan="1" colspan="2">33iL</th><th valign="top" align="center" rowspan="1" colspan="2">33iD</th></tr><tr><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th></tr></thead><tbody><tr><td valign="middle" align="center" rowspan="1" colspan="1">A</td><td valign="middle" align="right" rowspan="1" colspan="1">88.0</td><td valign="middle" align="right" rowspan="1" colspan="1">11.94</td><td valign="middle" align="right" rowspan="1" colspan="1">90.0</td><td valign="middle" align="right" rowspan="1" colspan="1">5.07</td><td valign="middle" align="right" rowspan="1" colspan="1">45</td><td valign="middle" align="right" rowspan="1" colspan="1">10.82</td><td valign="middle" align="right" rowspan="1" colspan="1">53</td><td valign="middle" align="right" rowspan="1" colspan="1">10.87</td><td valign="middle" align="right" rowspan="1" colspan="1">122.7</td><td valign="middle" align="right" rowspan="1" colspan="1">12.73</td><td valign="middle" align="right" rowspan="1" colspan="1">99.3</td><td valign="middle" align="right" rowspan="1" colspan="1">8.23</td><td valign="middle" align="right" rowspan="1" colspan="1">91.2</td><td valign="middle" align="right" rowspan="1" colspan="1">17.25</td><td valign="middle" align="right" rowspan="1" colspan="1">124.5</td><td valign="middle" align="right" rowspan="1" colspan="1">11.26</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">B</td><td valign="top" align="right" rowspan="1" colspan="1">98.0</td><td valign="top" align="right" rowspan="1" colspan="1">10.80</td><td valign="top" align="right" rowspan="1" colspan="1">95.2</td><td valign="top" align="right" rowspan="1" colspan="1">9.58</td><td valign="top" align="right" rowspan="1" colspan="1">50</td><td valign="top" align="right" rowspan="1" colspan="1">10.84</td><td valign="top" align="right" rowspan="1" colspan="1">65</td><td valign="top" align="right" rowspan="1" colspan="1">4.63</td><td valign="top" align="right" rowspan="1" colspan="1">118.5</td><td valign="top" align="right" rowspan="1" colspan="1">7.93</td><td valign="top" align="right" rowspan="1" colspan="1">98.5</td><td valign="top" align="right" rowspan="1" colspan="1">12.45</td><td valign="top" align="right" rowspan="1" colspan="1">89.2</td><td valign="top" align="right" rowspan="1" colspan="1">3.16</td><td valign="top" align="right" rowspan="1" colspan="1">116.7</td><td valign="top" align="right" rowspan="1" colspan="1">11.79</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">C</td><td valign="top" align="right" rowspan="1" colspan="1">40.5</td><td valign="top" align="right" rowspan="1" colspan="1">2.81</td><td valign="top" align="right" rowspan="1" colspan="1">20.3</td><td valign="top" align="right" rowspan="1" colspan="1">2.79</td><td valign="top" align="right" rowspan="1" colspan="1">24</td><td valign="top" align="right" rowspan="1" colspan="1">7.35</td><td valign="top" align="right" rowspan="1" colspan="1">90</td><td valign="top" align="right" rowspan="1" colspan="1">3.72</td><td valign="top" align="right" rowspan="1" colspan="1">30.8</td><td valign="top" align="right" rowspan="1" colspan="1">6.13</td><td valign="top" align="right" rowspan="1" colspan="1">39.8</td><td valign="top" align="right" rowspan="1" colspan="1">3.90</td><td valign="top" align="right" rowspan="1" colspan="1">82.3</td><td valign="top" align="right" rowspan="1" colspan="1">7.92</td><td valign="top" align="right" rowspan="1" colspan="1">96.3</td><td valign="top" align="right" rowspan="1" colspan="1">8.79</td></tr></tbody></table></alternatives><table-wrap-foot><fn><p>43iB: Strain gauge on the buccal side of #43 implant, 43iM: Strain gauge on the mesial side of #43 implant, 33iL: Strain gauge on the lingual side of #33 implant, 33iD: Strain gauge on the distal side of #33 implant.</p><p>A: Vertical loading on the mandibular right first molar, B: Vertical loading on the mandibular right premolars and molars, C: Vertical loading on both mandibular posterior areas.</p></fn></table-wrap-foot></table-wrap><table-wrap id="T2" orientation="portrait" position="float"><label>Table 2</label><caption><title>Mean strain values (µm/m) and SD of Group 2 (n = 10)</title></caption><alternatives><graphic xlink:href="jap-9-143-i002"></graphic><table frame="hsides" rules="rows"><col width="4%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><thead><tr><th valign="top" align="center" rowspan="3" colspan="1"></th><th valign="top" align="center" rowspan="1" colspan="8">Locator</th><th valign="top" align="center" rowspan="1" colspan="8">Bar</th></tr><tr><th valign="top" align="center" rowspan="1" colspan="2">43iB</th><th valign="top" align="center" rowspan="1" colspan="2">43iM</th><th valign="top" align="center" rowspan="1" colspan="2">33iL</th><th valign="top" align="center" rowspan="1" colspan="2">33iD</th><th valign="top" align="center" rowspan="1" colspan="2">43iB</th><th valign="top" align="center" rowspan="1" colspan="2">43iM</th><th valign="top" align="center" rowspan="1" colspan="2">33iL</th><th valign="top" align="center" rowspan="1" colspan="2">33iD</th></tr><tr><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th></tr></thead><tbody><tr><td valign="middle" align="center" rowspan="1" colspan="1">A</td><td valign="middle" align="right" rowspan="1" colspan="1">104.4</td><td valign="middle" align="right" rowspan="1" colspan="1">13.47</td><td valign="middle" align="right" rowspan="1" colspan="1">98.3</td><td valign="middle" align="right" rowspan="1" colspan="1">5.48</td><td valign="middle" align="right" rowspan="1" colspan="1">63</td><td valign="middle" align="right" rowspan="1" colspan="1">10.87</td><td valign="middle" align="right" rowspan="1" colspan="1">72</td><td valign="middle" align="right" rowspan="1" colspan="1">3.38</td><td valign="middle" align="right" rowspan="1" colspan="1">180.6</td><td valign="middle" align="right" rowspan="1" colspan="1">12.59</td><td valign="middle" align="right" rowspan="1" colspan="1">110.6</td><td valign="middle" align="right" rowspan="1" colspan="1">15.62</td><td valign="middle" align="right" rowspan="1" colspan="1">130.9</td><td valign="middle" align="right" rowspan="1" colspan="1">14.06</td><td valign="middle" align="right" rowspan="1" colspan="1">171.7</td><td valign="middle" align="right" rowspan="1" colspan="1">9.12</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">B</td><td valign="top" align="right" rowspan="1" colspan="1">101.7</td><td valign="top" align="right" rowspan="1" colspan="1">6.35</td><td valign="top" align="right" rowspan="1" colspan="1">93.8</td><td valign="top" align="right" rowspan="1" colspan="1">3.73</td><td valign="top" align="right" rowspan="1" colspan="1">71</td><td valign="top" align="right" rowspan="1" colspan="1">4.77</td><td valign="top" align="right" rowspan="1" colspan="1">80</td><td valign="top" align="right" rowspan="1" colspan="1">3.44</td><td valign="top" align="right" rowspan="1" colspan="1">177.3</td><td valign="top" align="right" rowspan="1" colspan="1">11.01</td><td valign="top" align="right" rowspan="1" colspan="1">109.4</td><td valign="top" align="right" rowspan="1" colspan="1">4.79</td><td valign="top" align="right" rowspan="1" colspan="1">128.1</td><td valign="top" align="right" rowspan="1" colspan="1">11.53</td><td valign="top" align="right" rowspan="1" colspan="1">164.3</td><td valign="top" align="right" rowspan="1" colspan="1">13.44</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">C</td><td valign="top" align="right" rowspan="1" colspan="1">121.0</td><td valign="top" align="right" rowspan="1" colspan="1">7.75</td><td valign="top" align="right" rowspan="1" colspan="1">73.0</td><td valign="top" align="right" rowspan="1" colspan="1">3.00</td><td valign="top" align="right" rowspan="1" colspan="1">36</td><td valign="top" align="right" rowspan="1" colspan="1">6.39</td><td valign="top" align="right" rowspan="1" colspan="1">160</td><td valign="top" align="right" rowspan="1" colspan="1">4.94</td><td valign="top" align="right" rowspan="1" colspan="1">93.3</td><td valign="top" align="right" rowspan="1" colspan="1">5.47</td><td valign="top" align="right" rowspan="1" colspan="1">65.5</td><td valign="top" align="right" rowspan="1" colspan="1">4.21</td><td valign="top" align="right" rowspan="1" colspan="1">119.7</td><td valign="top" align="right" rowspan="1" colspan="1">3.68</td><td valign="top" align="right" rowspan="1" colspan="1">162.6</td><td valign="top" align="right" rowspan="1" colspan="1">7.66</td></tr></tbody></table></alternatives><table-wrap-foot><fn><p>43iB: Strain gauge on the buccal side of #43 implant, 43iM: Strain gauge on the mesial side of #43 implant, 33iL: Strain gauge on the lingual side of #33 implant, 33iD: Strain gauge on the distal side of #33 implant.</p><p>A: Vertical loading on the mandibular right first molar, B: Vertical loading on the mandibular right premolars and molars, C: Vertical loading on both mandibular posterior areas.</p></fn></table-wrap-foot></table-wrap><table-wrap id="T3" orientation="portrait" position="float"><label>Table 3</label><caption><title>Mean strain values (µm/m) and SD of Group 3 (n = 10)</title></caption><alternatives><graphic xlink:href="jap-9-143-i003"></graphic><table frame="hsides" rules="rows"><col width="4%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><col width="6%" span="1"></col><thead><tr><th valign="top" align="center" rowspan="3" colspan="1"></th><th valign="top" align="center" rowspan="1" colspan="8">Locator</th><th valign="top" align="center" rowspan="1" colspan="8">Bar</th></tr><tr><th valign="top" align="center" rowspan="1" colspan="2">43iB</th><th valign="top" align="center" rowspan="1" colspan="2">43iM</th><th valign="top" align="center" rowspan="1" colspan="2">33iL</th><th valign="top" align="center" rowspan="1" colspan="2">33iD</th><th valign="top" align="center" rowspan="1" colspan="2">43iB</th><th valign="top" align="center" rowspan="1" colspan="2">43iM</th><th valign="top" align="center" rowspan="1" colspan="2">33iL</th><th valign="top" align="center" rowspan="1" colspan="2">33iD</th></tr><tr><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th><th valign="top" align="center" rowspan="1" colspan="1">Mean</th><th valign="top" align="center" rowspan="1" colspan="1">SD</th></tr></thead><tbody><tr><td valign="middle" align="center" rowspan="1" colspan="1">A</td><td valign="middle" align="right" rowspan="1" colspan="1">134.5</td><td valign="middle" align="right" rowspan="1" colspan="1">6.78</td><td valign="middle" align="right" rowspan="1" colspan="1">114.1</td><td valign="middle" align="right" rowspan="1" colspan="1">5.84</td><td valign="middle" align="right" rowspan="1" colspan="1">98</td><td valign="middle" align="right" rowspan="1" colspan="1">8.90</td><td valign="middle" align="right" rowspan="1" colspan="1">103.7</td><td valign="middle" align="right" rowspan="1" colspan="1">6.14</td><td valign="middle" align="right" rowspan="1" colspan="1">220.1</td><td valign="middle" align="right" rowspan="1" colspan="1">20.44</td><td valign="middle" align="right" rowspan="1" colspan="1">114.1</td><td valign="middle" align="right" rowspan="1" colspan="1">18.04</td><td valign="middle" align="right" rowspan="1" colspan="1">154.2</td><td valign="middle" align="right" rowspan="1" colspan="1">9.81</td><td valign="middle" align="right" rowspan="1" colspan="1">205.1</td><td valign="middle" align="right" rowspan="1" colspan="1">5.85</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">B</td><td valign="top" align="right" rowspan="1" colspan="1">139.1</td><td valign="top" align="right" rowspan="1" colspan="1">2.48</td><td valign="top" align="right" rowspan="1" colspan="1">116.1</td><td valign="top" align="right" rowspan="1" colspan="1">4.48</td><td valign="top" align="right" rowspan="1" colspan="1">84</td><td valign="top" align="right" rowspan="1" colspan="1">5.62</td><td valign="top" align="right" rowspan="1" colspan="1">128.0</td><td valign="top" align="right" rowspan="1" colspan="1">8.41</td><td valign="top" align="right" rowspan="1" colspan="1">218.7</td><td valign="top" align="right" rowspan="1" colspan="1">15.60</td><td valign="top" align="right" rowspan="1" colspan="1">116.4</td><td valign="top" align="right" rowspan="1" colspan="1">6.99</td><td valign="top" align="right" rowspan="1" colspan="1">138.4</td><td valign="top" align="right" rowspan="1" colspan="1">10.61</td><td valign="top" align="right" rowspan="1" colspan="1">208.7</td><td valign="top" align="right" rowspan="1" colspan="1">5.02</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">C</td><td valign="top" align="right" rowspan="1" colspan="1">217.5</td><td valign="top" align="right" rowspan="1" colspan="1">4.97</td><td valign="top" align="right" rowspan="1" colspan="1">94.0</td><td valign="top" align="right" rowspan="1" colspan="1">9.62</td><td valign="top" align="right" rowspan="1" colspan="1">89</td><td valign="top" align="right" rowspan="1" colspan="1">2.58</td><td valign="top" align="right" rowspan="1" colspan="1">215.0</td><td valign="top" align="right" rowspan="1" colspan="1">3.31</td><td valign="top" align="right" rowspan="1" colspan="1">39.9</td><td valign="top" align="right" rowspan="1" colspan="1">2.75</td><td valign="top" align="right" rowspan="1" colspan="1">19.8</td><td valign="top" align="right" rowspan="1" colspan="1">3.16</td><td valign="top" align="right" rowspan="1" colspan="1">54.9</td><td valign="top" align="right" rowspan="1" colspan="1">4.78</td><td valign="top" align="right" rowspan="1" colspan="1">115.8</td><td valign="top" align="right" rowspan="1" colspan="1">3.09</td></tr></tbody></table></alternatives><table-wrap-foot><fn><p>43iB: Strain gauge on the buccal side of #43 implant, 43iM: Strain gauge on the mesial side of #43 implant, 33iL: Strain gauge on the lingual side of #33 implant, 33iD: Strain gauge on the distal side of #33 implant.</p><p>A: Vertical loading on the mandibular right first molar, B: Vertical loading on the mandibular right premolars and molars, C: Vertical loading on both mandibular posterior area.</p></fn></table-wrap-foot></table-wrap><table-wrap id="T4" orientation="portrait" position="float"><label>Table 4</label><caption><title>Comparison of <italic>P</italic> values between locator and bar/clip attachment</title></caption><alternatives><graphic xlink:href="jap-9-143-i004"></graphic><table frame="hsides" rules="rows"><col width="16%" span="1"></col><col width="16.8%" span="1"></col><col width="16.8%" span="1"></col><col width="16.8%" span="1"></col><col width="16.8%" span="1"></col><col width="16.8%" span="1"></col><thead><tr><th valign="middle" align="center" rowspan="2" colspan="1"></th><th valign="middle" align="center" rowspan="1" colspan="2">Locator</th><th valign="middle" align="center" rowspan="1" colspan="2">Bar</th><th valign="middle" align="center" rowspan="2" colspan="1"><italic>P</italic> value<sup>*</sup></th></tr><tr><th valign="middle" align="center" rowspan="1" colspan="1">Mean</th><th valign="middle" align="center" rowspan="1" colspan="1">SD</th><th valign="middle" align="center" rowspan="1" colspan="1">Mean</th><th valign="middle" align="center" rowspan="1" colspan="1">SD</th></tr></thead><tbody><tr><td valign="middle" align="center" rowspan="1" colspan="1">A</td><td valign="middle" align="right" rowspan="1" colspan="1">69.00</td><td valign="middle" align="right" rowspan="1" colspan="1">8.91</td><td valign="middle" align="right" rowspan="1" colspan="1">109.43</td><td valign="middle" align="right" rowspan="1" colspan="1">18.79</td><td valign="middle" align="right" rowspan="1" colspan="1">< .001</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">B</td><td valign="top" align="right" rowspan="1" colspan="1">77.05</td><td valign="top" align="right" rowspan="1" colspan="1">6.21</td><td valign="top" align="right" rowspan="1" colspan="1">105.73</td><td valign="top" align="right" rowspan="1" colspan="1">12.66</td><td valign="top" align="right" rowspan="1" colspan="1">.01</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">C</td><td valign="top" align="right" rowspan="1" colspan="1">43.70</td><td valign="top" align="right" rowspan="1" colspan="1">7.84</td><td valign="top" align="right" rowspan="1" colspan="1">62.30</td><td valign="top" align="right" rowspan="1" colspan="1">4.73</td><td valign="top" align="right" rowspan="1" colspan="1">.01</td></tr></tbody></table></alternatives><table-wrap-foot><fn><p><sup>*</sup>Significant difference at the 0.05 level.</p><p>A: Vertical loading on the mandibular right first molar, B: Vertical loading on the mandibular right premolars and molars, C: Vertical loading on both mandibular posterior areas.</p></fn></table-wrap-foot></table-wrap><table-wrap id="T5" orientation="portrait" position="float"><label>Table 5</label><caption><title>Comparison of <italic>P</italic> values for locator attachment by differences in the denture base (<italic>P</italic> < .05)</title></caption><alternatives><graphic xlink:href="jap-9-143-i005"></graphic><table frame="hsides" rules="rows"><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><thead><tr><th valign="middle" align="center" rowspan="2" colspan="1"></th><th valign="middle" align="center" rowspan="1" colspan="2">Group 1</th><th valign="middle" align="center" rowspan="1" colspan="2">Group 2</th><th valign="middle" align="center" rowspan="1" colspan="2">Group 3</th><th valign="middle" align="center" rowspan="2" colspan="1"><italic>P</italic> value<sup>*</sup></th></tr><tr><th valign="middle" align="center" rowspan="1" colspan="1">Mean</th><th valign="middle" align="center" rowspan="1" colspan="1">SD</th><th valign="middle" align="center" rowspan="1" colspan="1">Mean</th><th valign="middle" align="center" rowspan="1" colspan="1">SD</th><th valign="middle" align="center" rowspan="1" colspan="1">Mean</th><th valign="middle" align="center" rowspan="1" colspan="1">SD</th></tr></thead><tbody><tr><td valign="middle" align="center" rowspan="1" colspan="1">A</td><td valign="middle" align="right" rowspan="1" colspan="1">69.00</td><td valign="middle" align="right" rowspan="1" colspan="1">8.91</td><td valign="middle" align="right" rowspan="1" colspan="1">84.43</td><td valign="middle" align="right" rowspan="1" colspan="1">8.19</td><td valign="middle" align="right" rowspan="1" colspan="1">112.58</td><td valign="middle" align="right" rowspan="1" colspan="1">8.32</td><td valign="middle" align="right" rowspan="1" colspan="1">0.03</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">B</td><td valign="top" align="right" rowspan="1" colspan="1">77.05</td><td valign="top" align="right" rowspan="1" colspan="1">6.21</td><td valign="top" align="right" rowspan="1" colspan="1">86.63</td><td valign="top" align="right" rowspan="1" colspan="1">8.47</td><td valign="top" align="right" rowspan="1" colspan="1">116.80</td><td valign="top" align="right" rowspan="1" colspan="1">11.56</td><td valign="top" align="right" rowspan="1" colspan="1">0.03</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">C</td><td valign="top" align="right" rowspan="1" colspan="1">43.70</td><td valign="top" align="right" rowspan="1" colspan="1">7.84</td><td valign="top" align="right" rowspan="1" colspan="1">97.50</td><td valign="top" align="right" rowspan="1" colspan="1">6.09</td><td valign="top" align="right" rowspan="1" colspan="1">153.88</td><td valign="top" align="right" rowspan="1" colspan="1">8.57</td><td valign="top" align="right" rowspan="1" colspan="1">0.01</td></tr></tbody></table></alternatives><table-wrap-foot><fn><p><sup>*</sup>Significant difference at the 0.05 level.</p><p>Group 1: Full denture base, Group 2: Denture base reduction to level of distal area of second molar, Group 3: Denture base reduction to level of distal area of first molar.</p><p>A: Vertical loading on the mandibular right first molar, B: Vertical loading on the mandibular right premolars and molars, C: Vertical loading on both mandibular posterior areas.</p></fn></table-wrap-foot></table-wrap><table-wrap id="T6" orientation="portrait" position="float"><label>Table 6</label><caption><title>Comparison of the <italic>P</italic> values for bar/clip attachment by difference in the denture base (<italic>P</italic> < .05)</title></caption><alternatives><graphic xlink:href="jap-9-143-i006"></graphic><table frame="hsides" rules="rows"><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><col width="12.5%" span="1"></col><thead><tr><th valign="middle" align="center" rowspan="2" colspan="1"></th><th valign="middle" align="center" rowspan="1" colspan="2">Group 1</th><th valign="middle" align="center" rowspan="1" colspan="2">Group 2</th><th valign="middle" align="center" rowspan="1" colspan="2">Group 3</th><th valign="middle" align="center" rowspan="2" colspan="1"><italic>P </italic>value<sup>*</sup></th></tr><tr><th valign="middle" align="center" rowspan="1" colspan="1">Mean</th><th valign="middle" align="center" rowspan="1" colspan="1">SD</th><th valign="middle" align="center" rowspan="1" colspan="1">Mean</th><th valign="middle" align="center" rowspan="1" colspan="1">SD</th><th valign="middle" align="center" rowspan="1" colspan="1">Mean</th><th valign="middle" align="center" rowspan="1" colspan="1">SD</th></tr></thead><tbody><tr><td valign="middle" align="center" rowspan="1" colspan="1">A</td><td valign="middle" align="right" rowspan="1" colspan="1">109.43</td><td valign="middle" align="right" rowspan="1" colspan="1">18.79</td><td valign="middle" align="right" rowspan="1" colspan="1">148.45</td><td valign="middle" align="right" rowspan="1" colspan="1">6.08</td><td valign="middle" align="right" rowspan="1" colspan="1">0173.38</td><td valign="middle" align="right" rowspan="1" colspan="1">10.63</td><td valign="middle" align="right" rowspan="1" colspan="1">0.001</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">B</td><td valign="top" align="right" rowspan="1" colspan="1">105.73</td><td valign="top" align="right" rowspan="1" colspan="1">12.66</td><td valign="top" align="right" rowspan="1" colspan="1">144.78</td><td valign="top" align="right" rowspan="1" colspan="1">8.79</td><td valign="top" align="right" rowspan="1" colspan="1">170.55</td><td valign="top" align="right" rowspan="1" colspan="1">6.57</td><td valign="top" align="right" rowspan="1" colspan="1">0.02</td></tr><tr><td valign="top" align="center" rowspan="1" colspan="1">C</td><td valign="top" align="right" rowspan="1" colspan="1">62.30</td><td valign="top" align="right" rowspan="1" colspan="1">4.73</td><td valign="top" align="right" rowspan="1" colspan="1">110.28</td><td valign="top" align="right" rowspan="1" colspan="1">5.60</td><td valign="top" align="right" rowspan="1" colspan="1">57.60</td><td valign="top" align="right" rowspan="1" colspan="1">3.73</td><td valign="top" align="right" rowspan="1" colspan="1">0.02</td></tr></tbody></table></alternatives><table-wrap-foot><fn><p><sup>*</sup>Significant difference at the 0.05 level.</p><p>Group 1: Full denture base, Group 2: Denture base reduction to level of distal area of second molar, Group 3: Denture base reduction to level of distal area of first molar A: Vertical loading on the mandibular right first molar, B: Vertical loading on the mandibular right premolars and molars, C: Vertical loading on both mandibular posterior areas.</p></fn></table-wrap-foot></table-wrap></floats-group></pmc><affiliations><list><country><li>Corée du Sud</li></country><region><li>Région capitale de Séoul</li></region><settlement><li>Séoul</li></settlement></list><tree><country name="Corée du Sud"><region name="Région capitale de Séoul"><name sortKey="Yoo, Jin Suk" sort="Yoo, Jin Suk" uniqKey="Yoo J" first="Jin Suk" last="Yoo">Jin Suk Yoo</name></region><name sortKey="Kwon, Kung Rock" sort="Kwon, Kung Rock" uniqKey="Kwon K" first="Kung-Rock" last="Kwon">Kung-Rock Kwon</name><name sortKey="Lee, Hyeonjong" sort="Lee, Hyeonjong" uniqKey="Lee H" first="Hyeonjong" last="Lee">Hyeonjong Lee</name><name sortKey="Noh, Kwantae" sort="Noh, Kwantae" uniqKey="Noh K" first="Kwantae" last="Noh">Kwantae Noh</name><name sortKey="Paek, Janghyun" sort="Paek, Janghyun" uniqKey="Paek J" first="Janghyun" last="Paek">Janghyun Paek</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Santé/explor/EdenteV2/Data/Ncbi/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 007069 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Ncbi/Merge/biblio.hfd -nk 007069 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Santé
|area= EdenteV2
|flux= Ncbi
|étape= Merge
|type= RBID
|clé= PMC:5483399
|texte= Stress analysis of mandibular implant overdenture with locator and bar/clip attachment: Comparative study with differences in the denture base length
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Ncbi/Merge/RBID.i -Sk "pubmed:28680544" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Ncbi/Merge/biblio.hfd \
| NlmPubMed2Wicri -a EdenteV2
| This area was generated with Dilib version V0.6.32. |  |