Maxillary expansion with the memory screw : a preliminary investigation

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dc.authorid0000-0001-7079-7236
dc.authorid0000-0002-0624-9566
dc.contributor.authorHalıcıoğlu, Koray
dc.contributor.authorKiki, Ali
dc.contributor.authorYavuz, İbrahim
dc.date.accessioned2021-06-23T19:33:51Z
dc.date.available2021-06-23T19:33:51Z
dc.date.issued2012
dc.departmentBAİBÜ, Diş Hekimliği Fakültesi, Ortodonti Ana Bilim Dalıen_US
dc.description.abstractObjective: The purpose of this study was to investigate the effects of a newly developed rapid maxillary expansion screw-the memory screw-over 6 months. Methods: Five subjects, aged between 11.7 and 13.75 years, were enrolled in this study. All subjects underwent placement of a maxillary expansion appliance containing superelastic nickel-titanium open-coil springs in its screw bed. The parents of the patients and/or the patients themselves were instructed to activate the expansion screw by 2 quarter-turns 3 times a day (morning, midday, and evening; 6 quarter-turns a day). The mean expansion period was 7.52 +/- 1.04 days. Dentoskeletal effects of the procedure, including dentoalveolar inclination, were evaluated. Measurements of all the parameters were repeated after 6 months of retention in order to check for relapse. Results: Sella-Nasion-A point (SNA) and Sella-Nasion/Gonion-Menton angles increased, and Sella-Nasion-B point (SNB) angle decreased in all the subjects during the expansion phase. However, they approximated to the initial values at the end of 6 months. On the other hand, the increments in maxillary apical base (Mxr-Mxl) and intermolar widths was quite stable. As expected, some amount of dentoalveolar tipping was observed. Conclusions: The newly developed memory expansion screw offers advantages of both rapid and slow expansion procedures. It widens the midpalatal suture and expands the maxilla with relatively lighter forces and within a short time. In addition, the resultant increments in the maxillary apical base and intermolar width remained quite stable even after 6 months of retention. [Korean J Orthod 2012;42(2):73-79]en_US
dc.identifier.doi10.4041/kjod.2012.42.2.73
dc.identifier.endpage79en_US
dc.identifier.issn2234-7518
dc.identifier.issue2en_US
dc.identifier.pmid23112935en_US
dc.identifier.scopus2-s2.0-84860356622en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage73en_US
dc.identifier.urihttps://doi.org/10.4041/kjod.2012.42.2.73
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7232
dc.identifier.volume42en_US
dc.identifier.wosWOS:000303558200004en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorHalıcıoğlu, Koray
dc.language.isoenen_US
dc.publisherKorean Assoc Orthodontistsen_US
dc.relation.ispartofKorean Journal Of Orthodonticsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectExpansionen_US
dc.subjectAppliancesen_US
dc.subjectCephalometricsen_US
dc.subjectRetention and Stabilityen_US
dc.titleMaxillary expansion with the memory screw : a preliminary investigationen_US
dc.typeArticleen_US

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