File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Stability of connected mini-implants and miniplates for skeletal anchorage in orthodontics

TitleStability of connected mini-implants and miniplates for skeletal anchorage in orthodontics
Authors
Issue Date2008
PublisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/
Citation
European Journal Of Orthodontics, 2008, v. 30 n. 5, p. 483-489 How to Cite?
AbstractThe aim of this study was to examine the primary stability of connected mini-implants and miniplates. Three different skeletal anchorage systems were investigated: (1) two 1.5 mm diameter cylindrical mini-implants connected with a 0.021 × 0.025 inch stainless steel (SS) wire, (2) two 1.6 mm diameter tapered mini-implants connected with a 0.021 × 0.025 inch SS wire, and (3) two 2.0 mm diameter cylindrical mini-implants connected by a titanium locking miniplate. Fifteen standardized bovine bone specimens were prepared, five specimens for each experimental group. The connected mini-implants were fixed on the bone specimens. The systems underwent uniaxial pull-out tests at the midpoint of the connecting wire or miniplate using a mechanical testing machine. One-way analysis of variance was used to determine the difference of the pull-out test results between the groups.Both the titanium miniplate and SS wire connection systems showed severe deformation at the screw head, which broke before the mini-implants failed. The 2.0 mm miniplate system showed the highest pull-out force (529 N) compared with the other two wire connection systems (P < 0.001). The 2.0 mm system was also stiffer than the 1.6 and 1.5 mm systems (P < 0.001). The yield force of the 2.0 mm miniplate (153 N) was significantly higher than the 1.5 mm (88 N) and 1.6 mm (76 N) systems (P < 0.001).This in vitro study demonstrated that the connection of two mini-implants with a miniplate resulted in higher pull-out force, stiffness, and yield force to resist pulling force and deformation. Such a set-up could thus provide a stable system for orthodontic skeletal anchorage. © The Author 2008. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/154546
ISSN
2015 Impact Factor: 1.44
2015 SCImago Journal Rankings: 1.090
ISI Accession Number ID
Funding AgencyGrant Number
The University Strategic Research Theme: Genomics, Proteomics and Bioinformatics, University of Hong Kong10206152.11222.21700.302.01
Competative Earmarked Research Grant (CERG)102006968.22311.08003.324.01
Funding Information:

The University Strategic Research Theme: Genomics, Proteomics and Bioinformatics, University of Hong Kong (10206152.11222.21700.302.01); a Competative Earmarked Research Grant (CERG) grant (102006968.22311.08003.324.01).

References

 

DC FieldValueLanguage
dc.contributor.authorLeung, MTCen_HK
dc.contributor.authorRabie, ABMen_HK
dc.contributor.authorWong, RWKen_HK
dc.date.accessioned2012-08-08T08:26:06Z-
dc.date.available2012-08-08T08:26:06Z-
dc.date.issued2008en_HK
dc.identifier.citationEuropean Journal Of Orthodontics, 2008, v. 30 n. 5, p. 483-489en_HK
dc.identifier.issn0141-5387en_HK
dc.identifier.urihttp://hdl.handle.net/10722/154546-
dc.description.abstractThe aim of this study was to examine the primary stability of connected mini-implants and miniplates. Three different skeletal anchorage systems were investigated: (1) two 1.5 mm diameter cylindrical mini-implants connected with a 0.021 × 0.025 inch stainless steel (SS) wire, (2) two 1.6 mm diameter tapered mini-implants connected with a 0.021 × 0.025 inch SS wire, and (3) two 2.0 mm diameter cylindrical mini-implants connected by a titanium locking miniplate. Fifteen standardized bovine bone specimens were prepared, five specimens for each experimental group. The connected mini-implants were fixed on the bone specimens. The systems underwent uniaxial pull-out tests at the midpoint of the connecting wire or miniplate using a mechanical testing machine. One-way analysis of variance was used to determine the difference of the pull-out test results between the groups.Both the titanium miniplate and SS wire connection systems showed severe deformation at the screw head, which broke before the mini-implants failed. The 2.0 mm miniplate system showed the highest pull-out force (529 N) compared with the other two wire connection systems (P < 0.001). The 2.0 mm system was also stiffer than the 1.6 and 1.5 mm systems (P < 0.001). The yield force of the 2.0 mm miniplate (153 N) was significantly higher than the 1.5 mm (88 N) and 1.6 mm (76 N) systems (P < 0.001).This in vitro study demonstrated that the connection of two mini-implants with a miniplate resulted in higher pull-out force, stiffness, and yield force to resist pulling force and deformation. Such a set-up could thus provide a stable system for orthodontic skeletal anchorage. © The Author 2008. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved.en_HK
dc.languageengen_US
dc.publisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/en_HK
dc.relation.ispartofEuropean Journal of Orthodonticsen_HK
dc.subject.meshAnimalsen_US
dc.subject.meshBiomechanicsen_US
dc.subject.meshBone Platesen_US
dc.subject.meshCattleen_US
dc.subject.meshDental Implantsen_US
dc.subject.meshDental Stress Analysisen_US
dc.subject.meshEquipment Failureen_US
dc.subject.meshMiniaturizationen_US
dc.subject.meshOrthodontic Anchorage Procedures - Instrumentationen_US
dc.subject.meshOrthodontic Appliance Designen_US
dc.subject.meshOrthodontic Wiresen_US
dc.titleStability of connected mini-implants and miniplates for skeletal anchorage in orthodonticsen_HK
dc.typeArticleen_HK
dc.identifier.emailRabie, ABM: rabie@hku.hken_HK
dc.identifier.emailWong, RWK: fyoung@hku.hken_HK
dc.identifier.authorityRabie, ABM=rp00029en_HK
dc.identifier.authorityWong, RWK=rp00038en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1093/ejo/cjm124en_HK
dc.identifier.pmid18458028-
dc.identifier.scopuseid_2-s2.0-54249159289en_HK
dc.identifier.hkuros153151-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-54249159289&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume30en_HK
dc.identifier.issue5en_HK
dc.identifier.spage483en_HK
dc.identifier.epage489en_HK
dc.identifier.isiWOS:000260151600006-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLeung, MTC=24344215400en_HK
dc.identifier.scopusauthoridRabie, ABM=7007172734en_HK
dc.identifier.scopusauthoridWong, RWK=7402127170en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats