A comparison of the sagittal and vertical dentofacial effects of maxillary expansion produced by a memory screw and a hyrax screw

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dc.authorid0000-0001-7079-7236
dc.contributor.authorHalıcıoğlu, Koray
dc.contributor.authorYavuz, İbrahim
dc.date.accessioned2021-06-23T19:43:37Z
dc.date.available2021-06-23T19:43:37Z
dc.date.issued2016
dc.departmentBAİBÜ, Diş Hekimliği Fakültesi, Ortodonti Ana Bilim Dalıen_US
dc.description.abstractAim: The aim of the present study was to investigate and compare the cephalometric effects of a conventional Hyrax expansion screw and a memory screw on the skeletal and dentoalveolar structures and soft tissues of the face. Methods: Thirty-two patients with a maxillary transverse deficiency were divided into two groups. A memory-screw group included 17 patients (nine females and eight males), while a Hyrax-screw group was comprised of 15 patients (eight females and seven males). The mean ages of the subjects in the memory-screw and Hyrax-screw groups were 13.00 1.29 and 12.58 1.50 years, respectively. Lateral cephalograms were taken of the patients at the beginning of the treatment (T1), at the end of expansion (T2) and retention periods (T3). The mean expansion period was 7.76 +/- 1.04 days in the memory-screw group and 35.46 +/- 9.39 days in the Hyrax-screw group. The Shapiro-Wilk Normality test was used to determine whether the investigated parameters were homogeneous. To determine the treatment changes within the groups, a paired t-test and Wilcoxon Signed Rank test were applied to the homogeneous and non-homogeneous parameters, respectively. A comparison between the groups was carried out using the Student's t-test for homogeneous parameters and the Mann-Whitney U test for all others. Results: A results summary indicates that mid-palatal sutural opening and subsequent important skeletal and dental expansions were obtained in all patients. The maxilla moved anteriorly and inferiorly in both groups while the mandible rotated inferiorly and posteriorly but to a greater extent in the memory-screw group. Conclusion: The newly-developed memory expansion screw takes advantage of rapid and slow maxillary expansion protocols. The suture is opened and the maxilla expanded with relatively lighter forces over a shorter time. The RME using the memory screw resulted in similar sagittal and vertical changes to those produced by the Hyrax screw.en_US
dc.identifier.endpage40en_US
dc.identifier.issn0587-3908
dc.identifier.issue1en_US
dc.identifier.pmid27468589en_US
dc.identifier.startpage31en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12491/8817
dc.identifier.urihttps://search.informit.org/doi/abs/10.3316/informit.099945702054582
dc.identifier.urihttps://www.webofscience.com/wos/woscc/full-record/WOS:000404695100005
dc.identifier.volume32en_US
dc.identifier.wosWOS:000404695100005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorHalıcıoğlu, Koray
dc.language.isoenen_US
dc.publisherAustralian Soc Orthodontists Incen_US
dc.relation.ispartofAustralian Orthodontic Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHyrax Expansion Screwen_US
dc.subjectDentoalveolar Structure
dc.subjectShapiro-Wilk Normality Test
dc.subjectRME
dc.titleA comparison of the sagittal and vertical dentofacial effects of maxillary expansion produced by a memory screw and a hyrax screwen_US
dc.typeArticleen_US

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WoS İndeksli Yayınlar Koleksiyonu
Ortodonti Ana Bilim Dalı Koleksiyonu
PubMed İndeksli Yayınlar Koleksiyonu