Neurosensory Deficit of Inferior Alveolar Nerve Following Mandibular Orthognathic Surgery.

Neurosensory Deficit of Inferior Alveolar Nerve Following Mandibular Orthognathic Surgery. A Prospective Longitudinal Clinical Trial.

This clinical study investigates the sensation deficit in the lower lip and chin area after surgical correction of lower jaw deformity.

The primary null hypothesis is: Lower jaw osteotomy cause no sensory deficit in the inferior alveolar nerve.

The secondary null hypothesis is: Concurrent genioplasty with sagittal split does not increase the risk of sensory deficit in the inferior alveolar nerve.

Inclusion Criteria:

• Patients with lower jaw deformity requiring bilateral sagittal split osteotomy

Exclusion Criteria:

• Medically compromised patients
• Previous neurosurgical procedure
• Patients on chronic medications
• Patients with a mental or psychiatric disorder
• Pregnant and lactating female
• Previous neurosensory deficit due to trauma, pathology, or surgery
• Patients with facial pain disorders including trigeminal neuralgia, temporomandibular disorder, or atypical facial pain