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| Name | Class |
|---|---|
| Shahid Beheshti University of Medical Sciences | OTHER |
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Patients who have mandibular deformity and will undergo bilateral sagittal split osteotomy will be included in the study.One side of the osteotomies randomly will be considered as study group and another side as a control group.In the study group , platelet rich fibrin will be placed after osteotomy and before rigid fixation.In the control group, fixation will be done without Platelet-rich Fibrin (PRF).Neurosensory disturbance will be evaluated 6 and 12 months after surgeries.
Patients who have mandibular deformity and will undergo bilateral sagittal split osteotomy will be included in the study.One side of the osteotomies randomly will be considered as study group and another side as a control group.In the study group , platelet rich fibrin will be placed after osteotomy and before rigid fixation.In the control group fixation will be done without Platelet-rich Fibrin. Before starting the surgical procedure, 20 mL of venous blood will take and placed in a centrifuge for 12 minutes with 28000rpm. After centrifugation, the cap will be removed from each tube and they will be placed into a sterile rack L-PRFâ„¢. Fibrin matrix will prepare. The L-PRFâ„¢ will be removed from the tube. Then, the clot right beneath the red blood cell clot will be placed on the surface tray and covered. Five minutes will be waited before removing and using the fibrin matrix.Neurosensory disturbance will be evaluated in 6 and 12 months after osteotomies by two-point discrimination (TPD) test and pin tactile discrimination(PTD) tests.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| treatment group | Active Comparator | One side of osteotomies will be considered as a treatment arm (randomly) which Platelet rich fibrin will be used with rigid fixation |
|
| Control group | Placebo Comparator | In control site , placebo gel will be placed before rigid fixation |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Platelet rich fibrin | Biological | Platelet rich fibrin will be prepared by taking 20 cc blood and centrifugation with 28000 rpm. |
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| Measure | Description | Time Frame |
|---|---|---|
| Two-point discrimination (TPD) test | Two point discrimination will be measured based on the distance of two points (mm) | TPD will be assessed after 6 months |
| Two-point discrimination | Two point discrimination will be measured based on the distance of two points (mm) | Two-point discrimination will be evaluated after12 months intervals |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Reza Tabrizi, DMD | Contact | +989125850829 | tabmed@gmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Reza Tabrizi, DMD | Shiraz University of Medical Sciences | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Shiraz university of medical sciences | Not yet recruiting | Shiraz | Iran |
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| ID | Term |
|---|---|
| D010292 | Paresthesia |
| D012678 | Sensation Disorders |
| ID | Term |
|---|---|
| D020886 | Somatosensory Disorders |
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
| D012816 | Signs and Symptoms |
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one side of osteotomies randomally will be considered as a treatment group and another side as a control group.
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Investigator will be blunt about side of treatmen and control.None of surgical team will be as an investigator.Patients will unware about which side is treatment or control.
| Placebo | Biological | In control group , after spliting the osteotomy site before fixation a placebo gel will be placed |
|
| Taleghani Hospital | Recruiting | Tehran | Iran |
|
| D013568 | Pathological Conditions, Signs and Symptoms |