Investigation of upper airway changes in orthognathic surgery with computational fluid dynamics analysis
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Dosyalar
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Inderscience Enterprises Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this retrospective study, computational fluid dynamics (CFD) simulation was used to observe changes in airway in a patient (20-year-old male) who underwent bimaxillary surgery with maxillary advancement and mandibular setback. Bimaxillary orthognathic surgery is an invasive approach that is used for the correction of skeletal class III malocclusion related with dental surgery. In order to perform CFD analysis, at the first stage cone-beam computed tomography (CBCT) data from preoperative (2 months before surgery) and postoperative (6 months after surgery) were used to build the numerical domain at three different volumetric flow rates of 30 L/min, 15 L/min and 7.5 L/min. In addition to volume changes in the airway, pressure drop, shear stress, streamlines were analysed for inhalation and exhalation phases at different volumetric flow rates. The total upper airway volume after the operation narrowed by 13.69% compared to the pre-operation. Upper respiratory tract nasal resistance decreased. In the post-operative condition, a pressure drop was observed between the nostrils and hypopharynx region for all volumetric flow rates. This demonstrates that the patient breathes easier after the bimaxillary orthognathic surgery operation.
Açıklama
Anahtar Kelimeler
finite volume method, FVM, turbulent flow, upper airway change, upper airway flow
Kaynak
Progress In Computational Fluid Dynamics
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
24
Sayı
2
