Orthognatic surgery, feasibility of computer assisted designed and fabricated surgical guide in sagittal split ramus osteotomy. Mandibular hyperplasia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Age between 18-35 years. Patients that has Mandibular sagittal split osteotomy in their treatment plan using virtual surgical planningit osteotomy in their treatment plan using virtual surgical planning
Exclusion criteria
Exclusion criteria: The patients with a history of Trigeminal nerve Neurosensory disturbance If genioplasty is included in treatment plan Have medical condition associated with neuropathy (like Diabetic, Hypertension and Kidney problem Those unwilling to sign informed consent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Inferior Alveolar nerve neurosensory disturbance. Timepoint: 1. Neurosensory disturbance will be assessed at second week, first month and three month after operation. Method of measurement: A. Quantitative neurosensory testing lower lip and chin 1. Direction of brush stroke using cotton 2.Two point discrimination using needle 3.Tactile threshold using Semmes–Weinstein (SW) monofilament . 4. Temperature awareness by using a tube filled hot water or ice B. Subjective neurosensory testing using a visual analogue scale (VAS). | — |
Secondary
| Measure | Time frame |
|---|---|
| Duration of osteotomy. Timepoint: Intraoperative. Method of measurement: minute.;Unfavorbale fracture. Timepoint: intraoperative. Method of measurement: yes/ no. | — |
Countries
Iran (Islamic Republic of)
Contacts
Tehran University of Medical Sciences