Maxillofacial Abnormalities Clinical Trial
Official title:
Assessment of Condylar Position Changes and TMJ Functions After BSSO Mandibular Setback, Low Medial vs High Medial Cut (Randomized Controlled Trial)
Verified date | February 2023 |
Source | Cairo University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This study hypotheses that using low medial cut osteotomy BSSO in mandibular setback can be an efficient and effective method to limit the bony segment interferences , decreasing muscles stripping during osteotomy ,decrease condylar torque and so securing preoperative condylar position during BSSO in comparison with using high medial cut BSSO.
Status | Active, not recruiting |
Enrollment | 24 |
Est. completion date | September 2023 |
Est. primary completion date | April 2023 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 60 Years |
Eligibility | Inclusion criteria: - Age of the patient between (18-60) years - Patients in need of mandibular setback using bilateral sagittal split osteotomy. - All patients are free from any systemic disease that may affect normal bone healing. - Patient with facial deformity will be treated with mandibular setback either mono or bimaxilary surgeries - Patient with facial deformity will be treated with mandibular setback either surgery first approach or orthofirst approach. - Sufficient dentition to reproduce the occlusal relationships - Patient's consent to participate Exclusion criteria: - Patients with any systemic disease that may affect normal healing - Intra-bony lesions or infections that may interfere with surgery. - Previous orthognathic surgeries. - Patients with all types of facial clefts |
Country | Name | City | State |
---|---|---|---|
Egypt | Faculty of Dentistry Cairo University | Cairo |
Lead Sponsor | Collaborator |
---|---|
Cairo University |
Egypt,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Clinical assessment of maximum incisal opening (MIO) | assessment of changes(in millimetre) in Maximum incisal opening (MIO) | Preoperative - 1 months postoperative - 6 months postoperative | |
Other | pain on TMJ | assessment of changes in severity of pain over TMJ using (pain scale from 0 to 10) | Preoperative - 1 months postoperative - 6 months postoperative | |
Other | sounds on TMJ | assessment of resulted sounds during TMJ function (present or not present) | Preoperative - 1 months postoperative - 6 months postoperative | |
Primary | 3D mandibular condylar position changes | assessment of condylar position changes in millimetre using C.T.(axial ,coronal and sagital cut. ).
Axial condylar head long-axis angle (AHA): angle between the sagittal plane and the axial condylar head axis line Axial condylar head position (AHP): perpendicular distance between the sagittal plane and the most medial point of the condylar head Frontal condylar head long-axis angle (FHA): angle between the axial plane and the frontal condylar head long-axis line Frontal condylar head position (FHP): perpendicular distance between the axial plane and most superior point of the condylar head Sagittal condylar head long-axis angle (SHA): angle between the coronal plane and the sagittal condylar head long-axis line Sagital condylar head position (SHP): perpendicular distance between the coronal plane and the most superior point of the condylar head |
Preoperative- 1-month postoperative - 6 months post operative | |
Secondary | Assessment of changes in articular disc position | In order to trace the position of the TMJ disc, a line was drawn from the uppermost point of the articular fossa (UAF, marked as 10) to the lowermost point of the articular tubercle (LAT, marked as 0).
This line was continued anteriorly and inferiorly. If the anterior border of the disc was anterior to this line, it was considered negative. These two points were chosen because they did not change with remodelling . Perpendicular lines to this line were drawn in the anterior and posterior borders of the disc. Finally, disc position was determined by averaging anterior (point A) and posterior (point P) disc limits. |
Preoperative , 6month postoperative |
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