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Article: Strain of bone-implant interface and insertion torque regarding different miniscrew thread designs using an artificial bone model

TitleStrain of bone-implant interface and insertion torque regarding different miniscrew thread designs using an artificial bone model
Authors
Issue Date2015
PublisherOxford University Press
Citation
The European Journal of Orthodontics, 2015, v. 37 n. 3, p. 268-274 How to Cite?
AbstractObjectives: To evaluate the initial stability of dual-thread miniscrews by analyzing the strain at the bone-implant interface and insertion torque during implantation in artificial bone models with different cortical bone thicknesses. Materials and methods: Insertion torque, and strain, measured with a five-element strain gauge in 1.0, 1.5, and 2.0-mm artificial cortical bone, during insertion of single- (OAS-T1507) and dual-thread (MPlant-U3) type self-drilling miniscrews were assessed. Results: Both dual- and single-thread miniscrews showed greater than 7790 μstrain for all cortical bone thicknesses, and dual-thread miniscrews reached up to 19580 μstrain in 2.00mm cortical bone. The strain of dual-thread miniscrews increased with increasing cortical bone thicknesses of 1.0–2.0mm. For single-thread miniscrews, the maximum insertion torque was relatively constant, but maximum insertion torque increased significantly in dual-thread groups with increasing cortical bone thicknesses (P < 0.0001). The maximum insertion torque with all cortical bone thicknesses was significantly lower with single- than dual-thread types (P < 0.0001). Conclusions: Self-drilling dual-thread miniscrews provide better initial mechanical stability, but may cause strain over the physiological bone remodelling limit at the bone-implant interface in thick cortical bone layers.
Persistent Identifierhttp://hdl.handle.net/10722/215028
ISSN
2015 Impact Factor: 1.44
2015 SCImago Journal Rankings: 1.090

 

DC FieldValueLanguage
dc.contributor.authorCha, JY-
dc.contributor.authorHwang, CJ-
dc.contributor.authorKwong, SH-
dc.contributor.authorJung, HS-
dc.contributor.authorKim, KM-
dc.contributor.authorYu, HS-
dc.date.accessioned2015-08-21T12:19:53Z-
dc.date.available2015-08-21T12:19:53Z-
dc.date.issued2015-
dc.identifier.citationThe European Journal of Orthodontics, 2015, v. 37 n. 3, p. 268-274-
dc.identifier.issn0141-5387-
dc.identifier.urihttp://hdl.handle.net/10722/215028-
dc.description.abstractObjectives: To evaluate the initial stability of dual-thread miniscrews by analyzing the strain at the bone-implant interface and insertion torque during implantation in artificial bone models with different cortical bone thicknesses. Materials and methods: Insertion torque, and strain, measured with a five-element strain gauge in 1.0, 1.5, and 2.0-mm artificial cortical bone, during insertion of single- (OAS-T1507) and dual-thread (MPlant-U3) type self-drilling miniscrews were assessed. Results: Both dual- and single-thread miniscrews showed greater than 7790 μstrain for all cortical bone thicknesses, and dual-thread miniscrews reached up to 19580 μstrain in 2.00mm cortical bone. The strain of dual-thread miniscrews increased with increasing cortical bone thicknesses of 1.0–2.0mm. For single-thread miniscrews, the maximum insertion torque was relatively constant, but maximum insertion torque increased significantly in dual-thread groups with increasing cortical bone thicknesses (P < 0.0001). The maximum insertion torque with all cortical bone thicknesses was significantly lower with single- than dual-thread types (P < 0.0001). Conclusions: Self-drilling dual-thread miniscrews provide better initial mechanical stability, but may cause strain over the physiological bone remodelling limit at the bone-implant interface in thick cortical bone layers.-
dc.languageeng-
dc.publisherOxford University Press-
dc.relation.ispartofThe European Journal of Orthodontics-
dc.titleStrain of bone-implant interface and insertion torque regarding different miniscrew thread designs using an artificial bone model-
dc.typeArticle-
dc.identifier.emailJung, HS: hsjung@hku.hk-
dc.identifier.authorityJung, HS=rp01683-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1093/ejo/cju037-
dc.identifier.pmid25296728-
dc.identifier.hkuros247536-
dc.identifier.volume37-
dc.identifier.spage268-
dc.identifier.epage274-

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