A study on the changes in attractive force of magnetic attachments for overdenture
Identifieur interne : 006488 ( Ncbi/Checkpoint ); précédent : 006487; suivant : 006489A study on the changes in attractive force of magnetic attachments for overdenture
Auteurs : Han-Wool Leem [Corée du Sud] ; In-Ho Cho [Corée du Sud] ; Jong-Hyuk Lee [Corée du Sud] ; Yu-Sung Choi [Corée du Sud]Source :
- The Journal of Advanced Prosthodontics [ 2005-7806 ] ; 2016.
Abstract
Although magnetic attachment is used frequently for overdenture, it is reported that attractive force can be decreased by abrasion and corrosion. The purpose of this study was to establish the clinical basis about considerations and long term prognosis of overdenture using magnetic attachments by investigating the change in attractive force of magnetic attachment applied to the patients.
Among the patients treated with overdenture using magnetic attachments in Dankook University Dental Hospital, attractive force records of 61 magnetic attachments of 20 subjects who re-visited from July 2013 to June 2014 were analyzed. Dental magnet tester (Aichi Micro Intelligent Co., Aichi, Japan) was used for measurement. The magnetic attachments used in this study were Magfit IP-B Flat, Magfit DX400, Magfit DX600 and Magfit DX800 (Aichi Steel Co., Aichi, Japan) filled with Neodymium (NdFeB), a rare-earth magnet.
Reduction ratio of attractive force had no significant correlation with conditional variables to which attachments were applied, and was higher when the maintenance period was longer (
Attractive force of magnetic attachment is maintained regardless of conditional variables and reduction ratio increased as the maintenance period became longer. Further study on adhesive material, attachment method and design improvement to prevent detachment of magnetic attachment is needed.
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DOI: 10.4047/jap.2016.8.1.9
PubMed: 26949482
PubMed Central: 4769893
Affiliations:
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Sud</country><wicri:regionArea>Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan</wicri:regionArea><wicri:noRegion>Cheonan</wicri:noRegion></affiliation></author><author><name sortKey="Lee, Jong Hyuk" sort="Lee, Jong Hyuk" uniqKey="Lee J" first="Jong-Hyuk" last="Lee">Jong-Hyuk Lee</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan</wicri:regionArea><wicri:noRegion>Cheonan</wicri:noRegion></affiliation></author><author><name sortKey="Choi, Yu Sung" sort="Choi, Yu Sung" uniqKey="Choi Y" first="Yu-Sung" last="Choi">Yu-Sung Choi</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan</wicri:regionArea><wicri:noRegion>Cheonan</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">26949482</idno><idno type="pmc">4769893</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4769893</idno><idno type="RBID">PMC:4769893</idno><idno type="doi">10.4047/jap.2016.8.1.9</idno><date when="2016">2016</date><idno type="wicri:Area/Pmc/Corpus">000653</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000653</idno><idno type="wicri:Area/Pmc/Curation">000653</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000653</idno><idno type="wicri:Area/Pmc/Checkpoint">000919</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000919</idno><idno 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wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan</wicri:regionArea><wicri:noRegion>Cheonan</wicri:noRegion></affiliation></author><author><name sortKey="Lee, Jong Hyuk" sort="Lee, Jong Hyuk" uniqKey="Lee J" first="Jong-Hyuk" last="Lee">Jong-Hyuk Lee</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan</wicri:regionArea><wicri:noRegion>Cheonan</wicri:noRegion></affiliation></author><author><name sortKey="Choi, Yu Sung" sort="Choi, Yu Sung" uniqKey="Choi Y" first="Yu-Sung" last="Choi">Yu-Sung Choi</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan, Republic of Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, College of Dentistry, Dankook University, Cheonan</wicri:regionArea><wicri:noRegion>Cheonan</wicri:noRegion></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="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>Although magnetic attachment is used frequently for overdenture, it is reported that attractive force can be decreased by abrasion and corrosion. The purpose of this study was to establish the clinical basis about considerations and long term prognosis of overdenture using magnetic attachments by investigating the change in attractive force of magnetic attachment applied to the patients.</p></sec><sec><title>MATERIALS AND METHODS</title><p>Among the patients treated with overdenture using magnetic attachments in Dankook University Dental Hospital, attractive force records of 61 magnetic attachments of 20 subjects who re-visited from July 2013 to June 2014 were analyzed. Dental magnet tester (Aichi Micro Intelligent Co., Aichi, Japan) was used for measurement. The magnetic attachments used in this study were Magfit IP-B Flat, Magfit DX400, Magfit DX600 and Magfit DX800 (Aichi Steel Co., Aichi, Japan) filled with Neodymium (NdFeB), a rare-earth magnet.</p></sec><sec><title>RESULTS</title><p>Reduction ratio of attractive force had no significant correlation with conditional variables to which attachments were applied, and was higher when the maintenance period was longer (<italic>P</italic><.05, r=.361). Reduction ratio of attractive force was significantly higher in the subject group in which attachments were used over 9 years than within 9 years (<italic>P</italic><.05). Furthermore, 16.39% of total magnetic attachments showed detachment of keeper or assembly.</p></sec><sec><title>CONCLUSION</title><p>Attractive force of magnetic attachment is maintained regardless of conditional variables and reduction ratio increased as the maintenance period became longer. Further study on adhesive material, attachment method and design improvement to prevent detachment of magnetic attachment is needed.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Haraldson, T" uniqKey="Haraldson T">T Haraldson</name></author><author><name sortKey="Karlsson, U" uniqKey="Karlsson U">U Karlsson</name></author><author><name sortKey="Carlsson, Ge" uniqKey="Carlsson G">GE Carlsson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Osterberg, T" uniqKey="Osterberg T">T Osterberg</name></author><author><name sortKey="Carlsson, Ge" uniqKey="Carlsson G">GE Carlsson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ellis, Js" uniqKey="Ellis J">JS Ellis</name></author><author><name sortKey="Pelekis, Nd" uniqKey="Pelekis N">ND Pelekis</name></author><author><name sortKey="Thomason, Jm" uniqKey="Thomason J">JM 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Leem</name></noRegion><name sortKey="Cho, In Ho" sort="Cho, In Ho" uniqKey="Cho I" first="In-Ho" last="Cho">In-Ho Cho</name><name sortKey="Choi, Yu Sung" sort="Choi, Yu Sung" uniqKey="Choi Y" first="Yu-Sung" last="Choi">Yu-Sung Choi</name><name sortKey="Lee, Jong Hyuk" sort="Lee, Jong Hyuk" uniqKey="Lee J" first="Jong-Hyuk" last="Lee">Jong-Hyuk Lee</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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