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Article: Archwire seating forces produced by different ligation methods and their effect on frictional resistance

TitleArchwire seating forces produced by different ligation methods and their effect on frictional resistance
Authors
Issue Date2005
PublisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/
Citation
European Journal Of Orthodontics, 2005, v. 27 n. 3, p. 302-308 How to Cite?
AbstractThe aims of this study were to determine the mean tensile force of four different elastomeric modules, the archwire seating force of different ligation methods, and its effect on frictional resistance. To determine the mean tensile force, each elastomeric module (purple, grey, Alastik, and SuperSlick) was extended by 5 mm using two hooks attached to a load cell using a Nene M3000 testing machine. To assess the median archwire seating force, a maxillary premolar bracket (3M Unitek) was welded to a sheet of stainless steel (SS) and glued to a Perspex block. The bracket base was removed and the cut continued into the Perspex below. A length of test wire was taken and bent to form a 'U' shape, with the middle portion 20 mm in length. The free ends of the wire were secured to the load cell of the Nene testing machine. Two wire sizes were tested, 0.017 x 0.025 and 0.019 x 0.025 inch SS. The load cell was activated and the force with which the wire was displaced into the slot by the ligation method was measured. Four types of elastomeric module were tested together with a pre-formed 0.09 inch SS ligature. The experimental method used to determine the mean frictional force of each module and wire size was carried out using a method described previously. Statistically significant differences existed in the mean tensile forces and median archwire seating forces between the elastomeric modules. Grey modules with either size wire produced the lowest median archwire seating force, whereas SS ligatures produced the highest forces. SS ligatures with either wire produced the lowest mean frictional forces, whereas grey modules produced significantly higher mean frictional force (P < 0.01). The force with which the wire was seated into the bracket did not seem to be related to the subsequent amount of mean frictional force produced. © The Author 2005. Published by Oxford University Press on behalf of the European Orthodontics Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/174208
ISSN
2015 Impact Factor: 1.44
2015 SCImago Journal Rankings: 1.090
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKhambay, Ben_US
dc.contributor.authorMillett, Den_US
dc.contributor.authorMchugh, Sen_US
dc.date.accessioned2012-11-22T01:58:33Z-
dc.date.available2012-11-22T01:58:33Z-
dc.date.issued2005en_US
dc.identifier.citationEuropean Journal Of Orthodontics, 2005, v. 27 n. 3, p. 302-308en_US
dc.identifier.issn0141-5387en_US
dc.identifier.urihttp://hdl.handle.net/10722/174208-
dc.description.abstractThe aims of this study were to determine the mean tensile force of four different elastomeric modules, the archwire seating force of different ligation methods, and its effect on frictional resistance. To determine the mean tensile force, each elastomeric module (purple, grey, Alastik, and SuperSlick) was extended by 5 mm using two hooks attached to a load cell using a Nene M3000 testing machine. To assess the median archwire seating force, a maxillary premolar bracket (3M Unitek) was welded to a sheet of stainless steel (SS) and glued to a Perspex block. The bracket base was removed and the cut continued into the Perspex below. A length of test wire was taken and bent to form a 'U' shape, with the middle portion 20 mm in length. The free ends of the wire were secured to the load cell of the Nene testing machine. Two wire sizes were tested, 0.017 x 0.025 and 0.019 x 0.025 inch SS. The load cell was activated and the force with which the wire was displaced into the slot by the ligation method was measured. Four types of elastomeric module were tested together with a pre-formed 0.09 inch SS ligature. The experimental method used to determine the mean frictional force of each module and wire size was carried out using a method described previously. Statistically significant differences existed in the mean tensile forces and median archwire seating forces between the elastomeric modules. Grey modules with either size wire produced the lowest median archwire seating force, whereas SS ligatures produced the highest forces. SS ligatures with either wire produced the lowest mean frictional forces, whereas grey modules produced significantly higher mean frictional force (P < 0.01). The force with which the wire was seated into the bracket did not seem to be related to the subsequent amount of mean frictional force produced. © The Author 2005. Published by Oxford University Press on behalf of the European Orthodontics Society. All rights reserved.en_US
dc.languageengen_US
dc.publisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/en_US
dc.relation.ispartofEuropean Journal of Orthodonticsen_US
dc.subject.meshElastomers - Chemistryen_US
dc.subject.meshFrictionen_US
dc.subject.meshHumansen_US
dc.subject.meshMaterials Testingen_US
dc.subject.meshOrthodontic Appliance Designen_US
dc.subject.meshOrthodontic Bracketsen_US
dc.subject.meshOrthodontic Wiresen_US
dc.subject.meshStainless Steel - Chemistryen_US
dc.subject.meshStress, Mechanicalen_US
dc.subject.meshSurface Propertiesen_US
dc.titleArchwire seating forces produced by different ligation methods and their effect on frictional resistanceen_US
dc.typeArticleen_US
dc.identifier.emailKhambay, B: bkhambay@hku.hken_US
dc.identifier.authorityKhambay, B=rp01691en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1093/ejo/cji008en_US
dc.identifier.pmid15947232-
dc.identifier.scopuseid_2-s2.0-22144433034en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-22144433034&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume27en_US
dc.identifier.issue3en_US
dc.identifier.spage302en_US
dc.identifier.epage308en_US
dc.identifier.isiWOS:000230308100015-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridKhambay, B=7003979053en_US
dc.identifier.scopusauthoridMillett, D=7005512194en_US
dc.identifier.scopusauthoridMcHugh, S=7006653642en_US
dc.identifier.citeulike229137-

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