Evaluation of initial stress distribution and displacement pattern of craniofacial structures with 3 different rapid maxillary expansion appliance models: A 3-dimensional finite element analysis

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dc.contributor.authorSucu, Merve
dc.contributor.authorYılmaz, Berna
dc.contributor.authorRamoğlu, Sabri İlhan
dc.date.accessioned2021-05-15T11:33:14Z
dc.date.available2021-05-15T11:33:14Z
dc.date.issued2021
dc.departmentDiş Hekimliği Fakültesien_US
dc.description.abstractObjective: This study aimed to describe the displacement of anatomical structures and the stress distributions caused by the Hyrax, fan-type, and double-hinged expansion screws via the 3-dimensional (3D) finite element method (FEM). Methods: The 3D FEM was based on the computed tomography data of a 12-year-old patient with a constricted maxilla. The Hyrax model included 1,800,981 tetrahedral elements with 2,758,217 nodes. The fan-type model included 1,787,558 tetrahedral elements with 2,737,358 nodes. The double-hinged model included 1,777,080 tetrahedral elements with 2,722,771 nodes. The von Mises stress distributions after 0.2 mm of expansion and displacement patterns after 5 mm of expansion were evaluated. Results: The highest stress accumulation was observed in the sutura zygomatico maxillaris area with all 3 appliances. An increase in stress was noted at the pterygomaxillary fissure, the medial and lateral pterygoid process of the sphenoid bone, and the nasal areas. The wedge-shaped skeletal opening was observed with all 3 appliances. In the transverse plane, maximum posterior expansion was achieved with the Hyrax appliance, whereas the maximum anterior expansion was observed with the double-hinged appliance. The maxilla moved inferiorly and anteriorly with all the 3 appliances. The greatest inferior displacement of the maxilla was recorded with the Hyrax appliance, whereas anterior maxillary displacement was the greatest with the double-hinged appliance. Conclusion: All the appliances showed similar stress distributions. The use of double-hinged screw caused a slight anterior displacement of point A. The fan-type and double-hinged appliances were shown to be more effective on anterior maxillary constriction, whereas the Hyrax appliance might be chosen for resolving maxillary posterior constriction.en_US
dc.description.sponsorshipBezmialem Vakif University Scientific Research Projects CommissionBezmialem Vakif University [.2015/15]en_US
dc.description.sponsorshipThis study was based on the specialization thesis entitled `Evaluation of the effects of three different rapid maxillary expansion appliances on craniofacial structures with finite element analysis' supported by Bezmialem Vakif University Scientific Research Projects Commission (Project number-9.2015/15)en_US
dc.identifier.doi10.5152/TurkJOrthod.2021.20006
dc.identifier.endpage25en_US
dc.identifier.issn2148-9505
dc.identifier.issue1en_US
dc.identifier.pmid33828874
dc.identifier.scopus2-s2.0-85103647885
dc.identifier.scopusqualityQ2
dc.identifier.startpage18en_US
dc.identifier.trdizinid507944
dc.identifier.urihttps://doi.org/10.5152/TurkJOrthod.2021.20006
dc.identifier.urihttps://hdl.handle.net/20.500.12939/103
dc.identifier.volume34en_US
dc.identifier.wosWOS:000628791300003
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.indekslendigikaynakPubMed
dc.institutionauthorRamoğlu, Sabri İlhan
dc.language.isoen
dc.publisherAvesen_US
dc.relation.ispartofTurkish Journal of Orthodontics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectFinite Element Methoden_US
dc.subjectRapid Maxillary Expansionen_US
dc.subjectTransverse Maxillary Deficiencyen_US
dc.titleEvaluation of initial stress distribution and displacement pattern of craniofacial structures with 3 different rapid maxillary expansion appliance models: A 3-dimensional finite element analysis
dc.typeArticle

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