DISCUSSION:

In this condition, the mandible is positioned severely anterior to the maxilla. (class III malocclusion) ^{1)
Less than 0.3 % of patients present  with this, but severe cases may lead to sleep apnea. Sagittal split ramus osteotomy is a common orthodontic corrective procedure. (2) Why don’t more patients present with this osseous malformation? 53 genes are linked with this malocclusion. Therefore further collaborative efforts are required. (3)}