Orthognathic Surgeries and Pharyngeal Airway Space

Malocclusion Patients

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04629859

Enrollment

Registered

2020-11-16

Start date

2020-01-01

Completion date

2020-12-01

Last updated

2023-08-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mandibular Prognathism

Keywords

Orthognathic surgery, Pharyngeal airway space, skeletal class III patients.

Brief summary

twenty-four patients with dentoskeletal deformity of class III will be divided equally into two groups and will be subjected to orthognathic surgeries group A; will be treated by mandibular setback surgery while group B will be treated with bimaxillary orthognathic surgery in the form of mandibular setback and maxillary advancement surgeries. the total pharyngeal airway will be measured on lateral cephalometric radiographs, integrating retro-palatal and retro-glossal area, and statistically will be compared preoperative, immediate postoperative, and at 6 months post-surgically

Interventions

PROCEDUREmandibular setback and maxillary advancement

12 patients will undergo mandibular setback and maxillary advancement

PROCEDUREmandibular setback

12 patients will undergo mandibular setback

Study design

Allocation

NON_RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* dento-skeletal class III malocclusion which needed a surgical intervention with maxillary advancement surgery and/or mandibular set-back orthognathic surgery in the form of bilateral sagittal split osteotomy * no previous orthognathic surgery

Exclusion criteria

* Patients with craniofacial syndromes. * Medically compromised patients and patients with bone anomalies

Design outcomes

Primary

Measure	Time frame	Description
total pharyngeal airway space surface area	6 months	Cephalometric analyses will be performed, the pharyngeal airway is demarcated inferiorly by a line passing through the tip of epiglottis and the superior tip of the hyoid bone, namely Line A, while the retro-glossal and the retro-palatal airway is separated by a line extending from the basion parallel to line A. All the reference points and lines were conveyed to the images . The Pharyngeal airway space was measured and compared.

Secondary

Measure	Time frame	Description
Epworth sleepiness scale	6 months	(0-24) score to assess sleep apnea indirect

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026