Surgical and orthodontic management of class III malocclusion in monozygotic twins using bilateral sagittal split osteotomy.
Tanu Sharma, Shruti Sharma, Anshul Singla et al.
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Case in brief
This case report details the surgical and orthodontic management of class III malocclusion in identical twin sisters in their early 20s, both presenting with mandibular prognathism. Diagnosis confirmed skeletal class III malocclusion with negative overjet. Treatment included pre-surgical orthodontics and bilateral sagittal split osteotomy, resulting in improved facial aesthetics and class I occlusion. Sister B experienced transient paraesthesia and a bad split, necessitating temporary splinting.
What made this case unusual
The case emphasizes the genetic influence on mandibular prognathism, as both sisters exhibited similar malocclusion characteristics, yet had differing severity.
Diagnostic / clinical pearl
Clinicians should consider genetic factors when evaluating and managing class III malocclusion, particularly in identical twins.
Why it matters
This case underscores the importance of interdisciplinary management and meticulous surgical planning in achieving optimal outcomes in complex orthodontic cases.