Clinical and Radiographic Evaluation of Low Sagittal Medial Ramus Osteotomy for Treatment of Skeletal Class II and Class III Malocclusion
Starting soon · Not applicable
Conditions studied: Skeletal Class II Malocclusion, Skeletal Class III Malocclusion, Dentofacial Deformities
In brief
This prospective clinical trial aims to evaluate the clinical and radiographic outcomes of the low sagittal medial ramus osteotomy-a technical modification of the conventional sagittal split osteotomy (SSO)-for treating patients with skeletal Class II and Class III malocclusions. Standard sagittal split osteotomies carry risks of complications, including unfavorable osteotomy propagation (bad splits) toward the condyle, ramus fragmentation, lingual interference of the distal segment, and inferior alveolar nerve (IAN) injury. To minimize these risks, this study utilizes a modified medial cut positioned low (below the lingula in an area with adequate marrow space) and short (terminating anterior to the lingula). This design aims to prevent osteotomy extension into the condylar region and eliminate lingual interference during segment repositioning.
Key facts
- Study ID
- NCT07746700
- Run by
- Al-Azhar University
- People needed
- 11
- Starts
- 2026-09-01
- Expected to finish
- 2027-09-01
- Last updated by the study team
- 2026-08-05
Who can join
Age: 18 and older, up to 45. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Patients with skeletal Class II or Class III malocclusion requiring mandibular orthognathic surgery.
- Age range from 18 to 45 years old.
- Systematically healthy patients classified as ASA physical status I or II (American Society of Anesthesiologists)
You may not qualify if…
- Patients with a pre-existing history of inferior alveolar nerve (IAN) sensory impairment.
- Patients with active or severe degenerative joint disease (DJD).
- Patients with a prior history of orthognathic surgical procedures.
- Patients presenting with systemic diseases or conditions known to compromise normal bone healing.
Full record on ClinicalTrials.gov
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