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dc.contributor.authorÖzdiler, Orhan
dc.contributor.authorOrhan, Kaan
dc.contributor.authorCesur, Emre
dc.contributor.authorKöklü, Ayşegül
dc.contributor.authorAlgın, Oktay
dc.date.accessioned2019-12-26T07:24:58Z
dc.date.available2019-12-26T07:24:58Z
dc.date.issued2019en_US
dc.identifier.citationÖzdiler, O., Orhan, K., Cesur, E., Köklü, A. ve Algın, O. (2019). Evaluation of temporomandibular joint, masticatory muscle, and brain cortex activity in patients treated by removable functional appliances: A prospective fMRI study. Dentomaxillofacial Radiology, 48(7). http://doi.org/10.1097/10.1259/dmfr.20190216en_US
dc.identifier.issn0250-832X
dc.identifier.urihttp://doi.org/10.1097/10.1259/dmfr.20190216
dc.identifier.urihttps://hdl.handle.net/20.500.12511/4712
dc.description.abstractObjectives: The aim of this study is to evaluate the effects of functional orthodontic appliances on the masticatory muscles, temporomandibular joint (TMJ), and brain to determine whether using functional appliances full-time or only at night yields different results. Methods: 16 patients with Class II malocclusion were included in this study. Eight patients were instructed to wear their appliances (monoblock/twinblock) full-time and the other eight patients were instructed to wear them at night while sleeping. An additional 10 patients with Class II malocclusion were later included as a pre-treatment control group. Signal intensity ratios (SIR) of TMJ structures and morphological evaluations of the masticatory muscles were done for all patients. Functional MRI (fMRI) data were also obtained from the patients while performing chewing and biting movements. Results: ANB angle was reduced significantly in both the full-time and night wear groups, by values of 1.17° and 1.35°, respectively (p < 0.05). MRI showed that SIRs were significantly increased in both groups in the masticatory muscles, retrodiscal pad, condylar process, and articular disc (p < 0.05). Both resting and task-based fMRI evaluation revealed significant increases in blood oxygen level dependent signals in several regions of the brain in both groups (p < 0.05). Conclusions: The cephalometric and MRI findings of this study indicate that the treatment effects were similar for both wear schedules. Functional appliances should be regarded not as simple devices that treat Class II malocclusion through skeletal and dental correction alone, but as exercise devices that lead to neuromuscular changes by facilitating muscle adaptation and activating various brain regions.en_US
dc.description.sponsorshipAnkara University Scientific Research Projects Center (BAP)en_US
dc.language.isoengen_US
dc.publisherBritish Institute of Radiologyen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCortex Activityen_US
dc.subjectFMRIen_US
dc.subjectFunctional Orthodontic Appliancesen_US
dc.subjectMasticatory Muscleen_US
dc.subjectTMJen_US
dc.titleEvaluation of temporomandibular joint, masticatory muscle, and brain cortex activity in patients treated by removable functional appliances: A prospective fMRI studyen_US
dc.typearticleen_US
dc.relation.journalDentomaxillofacial Radiologyen_US
dc.departmentİstanbul Medipol Üniversitesi, Diş Hekimliği Fakültesi, Ortodonti Ana Bilim Dalıen_US
dc.authorid0000-0003-0176-8970en_US
dc.identifier.volume48en_US
dc.identifier.issue7en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1259/dmfr.20190216en_US


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