Three-dimensional changes of the hyoid bone and airway volumes related to its relationship with horizontal anatomic planes after bimaxillary surgery in skeletal Class III patients

作者: Min-Ah Kim , Bo-Ram Kim , Jin-Young Choi , Jong-Kuk Youn , Yoon-Ji R. Kim

DOI: 10.2319/083112-700.1

关键词: Orthognathic surgeryOsteotomyMalocclusionHyoid boneSurgeryImpactionSkeletal classDisplacement (orthopedic surgery)AirwayOrthodonticsMedicine

摘要: ABSTRACT Objective: To evaluate longitudinal changes of the hyoid bone position and pharyngeal airway space after bimaxillary surgery in mandibular prognathism patients. Materials Methods: Cone-beam computed tomography scans were taken for 25 patients before (T0), 2 months (T1), 6 months (T2). The positional displacement was assessed using coordinates at T0, T1, T2. Additionally, volume each subject's measured. Results: mean amount posterior maxilla impaction 3.76 ± 1.33 mm as palatal plane rotated 2.04° 2.28° a clockwise direction result surgery. moved backward (P .05, P < .05) surgery, while total significantly decreased same time points .001, .001). There significant relationship between hy...

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