Evidence map›Paper›PMID 39903298›Full record

ArticleClinical oral investigations2025

Changes of pharyngeal airway structure and function in patients with skeletal class III malocclusion one year after orthognathic surgery.

Li Hongyu, Cui Jing, Wang Shouyi, Xu Lei, Li Qing, Zhang Fenghe, Pang Yongzhi

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Article in Clinical oral investigations, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Li HongyuDepartment of Oral and Maxillofacial Surgery, Jinan Stamotological Hospital, No.101 Jingliu Road, Jinan, Shandong, 250001, China.
Cui JingDepartment of Oral and Maxillofacial Surgery, Jinan Stamotological Hospital, No.101 Jingliu Road, Jinan, Shandong, 250001, China.
Wang ShouyiDepartment of Oral and Maxillofacial Surgery, Jinan Stamotological Hospital, No.101 Jingliu Road, Jinan, Shandong, 250001, China.
Xu LeiDepartment of Oral and Maxillofacial Surgery, Jinan Stamotological Hospital, No.101 Jingliu Road, Jinan, Shandong, 250001, China.
Li QingSchool and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
Zhang FengheSchool and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
Pang YongzhiDepartment of Oral and Maxillofacial Surgery, Jinan Stamotological Hospital, No.101 Jingliu Road, Jinan, Shandong, 250001, China. pangyongzhisy@126.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to analyze changes in the pharyngeal airway structure and function in patients with skeletal Class III malocclusion one year after orthognathic surgery. MATERIALS/

methodsIn this research, cone-beam computed tomography (CBCT) images of 30 patients (14 men and 16 women; mean age 20-30 years) with skeletal Class III malocclusion who underwent Lefort I osteotomy and bilateral sagittal split osteotomy were obtained before and one year after the surgery. Changes in pharyngeal airway structure were achieved by comparing CBCT data, and changes in function were achieved by comparing fluid dynamics models. The pharyngeal airway was analyzed by Element 3D (E3D) and the nasal airway 3D model was reconstructed. The meshing was implemented in ICEM-CFD (ANSYS, Canonsburg, PA, USA), and improved the mesh quality. The meshes were imported into Fluent (ANSYS, Canonsburg, PA, USA) to stimulate a fluid analysis.

resultsThe minimal anteroposterior diameter, minimal cross-sectional area and volume of pharyngeal airway were significantly reduced after surgery. There was no significant difference in the nasopharyngeal cross-sectional area. Pharyngeal airway resistance increased significantly after surgery, wall shear stress changed little before and after surgery. The anatomic structure of pharyngeal airway changed after surgery, but the morphological change of pharyngeal airway was not significant.

conclusionsOne year after surgery, the anatomical structure and function changed compared with those before surgery, and the changes of minimal cross-sectional area of pharyngeal airway should be considered when designing the treatment plan for the patients.

Indexed as

Malocclusion, Angle Class IIIOrthognathic Surgical ProceduresPharynxAdultCone-Beam Computed TomographyFemaleHumansImaging, Three-DimensionalMaleOsteotomy, Le FortOsteotomy, Sagittal Split RamusTreatment Outcome3D modelAirwayFluid analysisSkeletal class III malocclusion

Identifiers

PMID39903298

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.