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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
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| study arm | Experimental | dento skeletal class III patients will undergo a mandibular setback surgery and maxillary advancement |
|
| controlled arm | Experimental | dento skeletal class III patients will undergo a mandibular setback surgery |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| mandibular setback and maxillary advancement | Procedure | 12 patients will undergo mandibular setback and maxillary advancement |
|
| Measure | Description | Time Frame |
|---|---|---|
| total pharyngeal airway space surface area | 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. | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Epworth sleepiness scale | (0-24) score to assess sleep apnea indirect | 6 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| hussien hatem, phd | Cairo University | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Fayoum University | Al Fayyum | Egypt |
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| ID | Term |
|---|---|
| D008313 | Malocclusion, Angle Class III |
| ID | Term |
|---|---|
| D008310 | Malocclusion |
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
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| mandibular setback | Procedure | 12 patients will undergo mandibular setback |
|