Overview
The aim of this study, is to evaluate the effectiveness of ultrasound guided injection of botulinum toxin A into the muscles of mastication; the masseter, temporalis and the lateral pterygoid, in a closed reduction approach of condylar and sub-condylar fractures, seeking to shed light on the efficacy and potential advantages of this innovative therapeutic avenue.
Eligibility
Inclusion Criteria:
- Having unilateral extra-capsular condylar/ sub-condylar fractures isolated or associated with other fractures.
- Isolated intra-capsular fractures.
- Moderate condylar displacement, JO to 45 degrees or incomplete fractures.
- Reproducible occlusion without drop-back or with drop-back that returns to midline on release of posterior force.
- Availability of more than half of the dentition
Exclusion Criteria:
- Bilateral condylar fractures
- Gross condylar displacement\> 45 degrees (severely displaced)
- Anatomic reduction of ramus height 2: 2 mm
- Unstable occlusion (e.g., periodontal disease, less than three teeth per quadrant)
- Patients with severe polytraumas.
- Patients with relative contraindications to BTX injections that may include; pregnancy, lactation, BTX Allergies and presence of infection at the injection site.
- Patients with motor neuron diseases.