Accuracy of fit of 3-to-3 retainers after adhesive fixation using a neodymium–iron–boron magnet chain
Background and objective Six-base retainers are often used to prevent tertiary crowding. To minimize shear stress on the retainer, these should be fitted as precisely as possible. The aim of this study was to compare the accuracy of fit of 6-base retainers after adhesive fixation using a neodymium–i...
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| Veröffentlicht in: | Journal of orofacial orthopedics 2011-10, Vol.72 (5), p.381-388 |
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| container_title | Journal of orofacial orthopedics |
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| creator | Hahn, W. Wasser-Merkel, W. Lange, K. Gruber, R.M. Kubein-Meesenburg, D. Ihlow, D. |
| description | Background and objective
Six-base retainers are often used to prevent tertiary crowding. To minimize shear stress on the retainer, these should be fitted as precisely as possible. The aim of this study was to compare the accuracy of fit of 6-base retainers after adhesive fixation using a neodymium–iron–boron (NdFeB) magnet chain or a resin positioning aid.
Materials and methods
A 6-base retainer was prepared for 40 pseudo-anonymous lower jaw models (2 × 20). Temporary fixation was performed with a resin positioning aid or a NdFeB magnet chain. The adhesive fixation of the retainers was randomized. The area and vertical distance between wire and teeth were determined by histomorphometry. The results were evaluated by ANOVA. The probability of error was specified as 5%.
Results
With the magnetic chain method, the area was significantly smaller than with the positioning aid (p = 0.0125). The difference between the two methods was ca. 1.3 mm
2
. Moreover, the measured distance was affected significantly by the method used (p |
| doi_str_mv | 10.1007/s00056-011-0042-3 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1018861178</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1018861178</sourcerecordid><originalsourceid>FETCH-LOGICAL-c226t-fd388c19183168b6952fa46f1719da1a9c1fd0ed7d23cd35477b9aef9da9dd3f3</originalsourceid><addsrcrecordid>eNp9kMtOAyEUhonRaL08gBvD0g3KGWZgWBrjLWniRteEcqk0nUFhxtid7-Ab-iTStLp09ZOc7_zhfAidAr0ASsVlppQ2nFAAQmldEbaDJsChIVxAvVveNatJU0l2gA5zXqzpmvJ9dFCBFI2QzQSFK2PGpM0KR499GNbByBAJw8kNOvQuZaz94BLW9sXl8O4K9qGHEHs85tDPsca9i3bVhbH7_vwKKfYlZrEk7vS8dwM2L6XoGO15vczuZJtH6Pn25un6nkwf7x6ur6bEVBUfiLesbQ1IaBnwdsZlU3ldcw8CpNWgpQFvqbPCVsxY1tRCzKR2vgyltcyzI3S-6X1N8W10eVBdyMYtl7p8c8wKKLQtBxBtQWGDmhRzTs6r1xQ6nVYFUmvDamNYFcNqbVixsnO2rR9nnbN_G79KC1BtgFxG_dwltYhj6svJ_7T-AIMpiPk</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1018861178</pqid></control><display><type>article</type><title>Accuracy of fit of 3-to-3 retainers after adhesive fixation using a neodymium–iron–boron magnet chain</title><source>MEDLINE</source><source>SpringerLink Journals - AutoHoldings</source><creator>Hahn, W. ; Wasser-Merkel, W. ; Lange, K. ; Gruber, R.M. ; Kubein-Meesenburg, D. ; Ihlow, D.</creator><creatorcontrib>Hahn, W. ; Wasser-Merkel, W. ; Lange, K. ; Gruber, R.M. ; Kubein-Meesenburg, D. ; Ihlow, D.</creatorcontrib><description>Background and objective
Six-base retainers are often used to prevent tertiary crowding. To minimize shear stress on the retainer, these should be fitted as precisely as possible. The aim of this study was to compare the accuracy of fit of 6-base retainers after adhesive fixation using a neodymium–iron–boron (NdFeB) magnet chain or a resin positioning aid.
Materials and methods
A 6-base retainer was prepared for 40 pseudo-anonymous lower jaw models (2 × 20). Temporary fixation was performed with a resin positioning aid or a NdFeB magnet chain. The adhesive fixation of the retainers was randomized. The area and vertical distance between wire and teeth were determined by histomorphometry. The results were evaluated by ANOVA. The probability of error was specified as 5%.
Results
With the magnetic chain method, the area was significantly smaller than with the positioning aid (p = 0.0125). The difference between the two methods was ca. 1.3 mm
2
. Moreover, the measured distance was affected significantly by the method used (p < 0.0002). With the magnet chain, the distance between the tooth and retainer was reduced by a mean of 0.05 mm.
Conclusion
The fit of the retainer wire improves somewhat when the NdFeB magnet chain is used even though the wire is not as precisely positioned as it would be with a custom-made positioning aid.</description><identifier>ISSN: 1434-5293</identifier><identifier>EISSN: 1615-6714</identifier><identifier>DOI: 10.1007/s00056-011-0042-3</identifier><identifier>PMID: 21975795</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Boron ; Dental Cements ; Dentistry ; Humans ; Iron ; Magnetics ; Medicine ; Models, Anatomic ; Neodymium ; Oral and Maxillofacial Surgery ; Original Article ; Orthodontic Retainers - standards ; Orthodontic Wires ; Orthodontics - methods</subject><ispartof>Journal of orofacial orthopedics, 2011-10, Vol.72 (5), p.381-388</ispartof><rights>Urban & Vogel, Muenchen 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c226t-fd388c19183168b6952fa46f1719da1a9c1fd0ed7d23cd35477b9aef9da9dd3f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00056-011-0042-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00056-011-0042-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21975795$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hahn, W.</creatorcontrib><creatorcontrib>Wasser-Merkel, W.</creatorcontrib><creatorcontrib>Lange, K.</creatorcontrib><creatorcontrib>Gruber, R.M.</creatorcontrib><creatorcontrib>Kubein-Meesenburg, D.</creatorcontrib><creatorcontrib>Ihlow, D.</creatorcontrib><title>Accuracy of fit of 3-to-3 retainers after adhesive fixation using a neodymium–iron–boron magnet chain</title><title>Journal of orofacial orthopedics</title><addtitle>J Orofac Orthop</addtitle><addtitle>J Orofac Orthop</addtitle><description>Background and objective
Six-base retainers are often used to prevent tertiary crowding. To minimize shear stress on the retainer, these should be fitted as precisely as possible. The aim of this study was to compare the accuracy of fit of 6-base retainers after adhesive fixation using a neodymium–iron–boron (NdFeB) magnet chain or a resin positioning aid.
Materials and methods
A 6-base retainer was prepared for 40 pseudo-anonymous lower jaw models (2 × 20). Temporary fixation was performed with a resin positioning aid or a NdFeB magnet chain. The adhesive fixation of the retainers was randomized. The area and vertical distance between wire and teeth were determined by histomorphometry. The results were evaluated by ANOVA. The probability of error was specified as 5%.
Results
With the magnetic chain method, the area was significantly smaller than with the positioning aid (p = 0.0125). The difference between the two methods was ca. 1.3 mm
2
. Moreover, the measured distance was affected significantly by the method used (p < 0.0002). With the magnet chain, the distance between the tooth and retainer was reduced by a mean of 0.05 mm.
Conclusion
The fit of the retainer wire improves somewhat when the NdFeB magnet chain is used even though the wire is not as precisely positioned as it would be with a custom-made positioning aid.</description><subject>Boron</subject><subject>Dental Cements</subject><subject>Dentistry</subject><subject>Humans</subject><subject>Iron</subject><subject>Magnetics</subject><subject>Medicine</subject><subject>Models, Anatomic</subject><subject>Neodymium</subject><subject>Oral and Maxillofacial Surgery</subject><subject>Original Article</subject><subject>Orthodontic Retainers - standards</subject><subject>Orthodontic Wires</subject><subject>Orthodontics - methods</subject><issn>1434-5293</issn><issn>1615-6714</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kMtOAyEUhonRaL08gBvD0g3KGWZgWBrjLWniRteEcqk0nUFhxtid7-Ab-iTStLp09ZOc7_zhfAidAr0ASsVlppQ2nFAAQmldEbaDJsChIVxAvVveNatJU0l2gA5zXqzpmvJ9dFCBFI2QzQSFK2PGpM0KR499GNbByBAJw8kNOvQuZaz94BLW9sXl8O4K9qGHEHs85tDPsca9i3bVhbH7_vwKKfYlZrEk7vS8dwM2L6XoGO15vczuZJtH6Pn25un6nkwf7x6ur6bEVBUfiLesbQ1IaBnwdsZlU3ldcw8CpNWgpQFvqbPCVsxY1tRCzKR2vgyltcyzI3S-6X1N8W10eVBdyMYtl7p8c8wKKLQtBxBtQWGDmhRzTs6r1xQ6nVYFUmvDamNYFcNqbVixsnO2rR9nnbN_G79KC1BtgFxG_dwltYhj6svJ_7T-AIMpiPk</recordid><startdate>20111001</startdate><enddate>20111001</enddate><creator>Hahn, W.</creator><creator>Wasser-Merkel, W.</creator><creator>Lange, K.</creator><creator>Gruber, R.M.</creator><creator>Kubein-Meesenburg, D.</creator><creator>Ihlow, D.</creator><general>Springer-Verlag</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20111001</creationdate><title>Accuracy of fit of 3-to-3 retainers after adhesive fixation using a neodymium–iron–boron magnet chain</title><author>Hahn, W. ; Wasser-Merkel, W. ; Lange, K. ; Gruber, R.M. ; Kubein-Meesenburg, D. ; Ihlow, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c226t-fd388c19183168b6952fa46f1719da1a9c1fd0ed7d23cd35477b9aef9da9dd3f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Boron</topic><topic>Dental Cements</topic><topic>Dentistry</topic><topic>Humans</topic><topic>Iron</topic><topic>Magnetics</topic><topic>Medicine</topic><topic>Models, Anatomic</topic><topic>Neodymium</topic><topic>Oral and Maxillofacial Surgery</topic><topic>Original Article</topic><topic>Orthodontic Retainers - standards</topic><topic>Orthodontic Wires</topic><topic>Orthodontics - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hahn, W.</creatorcontrib><creatorcontrib>Wasser-Merkel, W.</creatorcontrib><creatorcontrib>Lange, K.</creatorcontrib><creatorcontrib>Gruber, R.M.</creatorcontrib><creatorcontrib>Kubein-Meesenburg, D.</creatorcontrib><creatorcontrib>Ihlow, D.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of orofacial orthopedics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hahn, W.</au><au>Wasser-Merkel, W.</au><au>Lange, K.</au><au>Gruber, R.M.</au><au>Kubein-Meesenburg, D.</au><au>Ihlow, D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Accuracy of fit of 3-to-3 retainers after adhesive fixation using a neodymium–iron–boron magnet chain</atitle><jtitle>Journal of orofacial orthopedics</jtitle><stitle>J Orofac Orthop</stitle><addtitle>J Orofac Orthop</addtitle><date>2011-10-01</date><risdate>2011</risdate><volume>72</volume><issue>5</issue><spage>381</spage><epage>388</epage><pages>381-388</pages><issn>1434-5293</issn><eissn>1615-6714</eissn><abstract>Background and objective
Six-base retainers are often used to prevent tertiary crowding. To minimize shear stress on the retainer, these should be fitted as precisely as possible. The aim of this study was to compare the accuracy of fit of 6-base retainers after adhesive fixation using a neodymium–iron–boron (NdFeB) magnet chain or a resin positioning aid.
Materials and methods
A 6-base retainer was prepared for 40 pseudo-anonymous lower jaw models (2 × 20). Temporary fixation was performed with a resin positioning aid or a NdFeB magnet chain. The adhesive fixation of the retainers was randomized. The area and vertical distance between wire and teeth were determined by histomorphometry. The results were evaluated by ANOVA. The probability of error was specified as 5%.
Results
With the magnetic chain method, the area was significantly smaller than with the positioning aid (p = 0.0125). The difference between the two methods was ca. 1.3 mm
2
. Moreover, the measured distance was affected significantly by the method used (p < 0.0002). With the magnet chain, the distance between the tooth and retainer was reduced by a mean of 0.05 mm.
Conclusion
The fit of the retainer wire improves somewhat when the NdFeB magnet chain is used even though the wire is not as precisely positioned as it would be with a custom-made positioning aid.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>21975795</pmid><doi>10.1007/s00056-011-0042-3</doi><tpages>8</tpages></addata></record> |
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| language | eng |
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| source | MEDLINE; SpringerLink Journals - AutoHoldings |
| subjects | Boron Dental Cements Dentistry Humans Iron Magnetics Medicine Models, Anatomic Neodymium Oral and Maxillofacial Surgery Original Article Orthodontic Retainers - standards Orthodontic Wires Orthodontics - methods |
| title | Accuracy of fit of 3-to-3 retainers after adhesive fixation using a neodymium–iron–boron magnet chain |
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