ANATOMY

Detailed explanation-1: -The suture closes sometime between the ages of 30 years old and 40 years old.

Detailed explanation-2: -The average age of coronal suture closure is 24 years; however, numerous diseases and factors may cause the dysfunction of a suture. The most common dysfunction is early closure or abnormal closure of a suture or group of sutures of the skull. Premature ossification of the sutures is referred to as craniosynostosis.

Detailed explanation-3: -Anterior brachycephaly involves fusion of either the right or left side of the coronal suture that runs across the top of the baby’s head from ear to ear. This is called coronal synostosis, and it causes the normal forehead and brow to stop growing.

Detailed explanation-4: -The sutures of the skull fuse around the brain at around age 2 years. When a baby has craniosynostosis, one or more of these sutures hardens too early and closes before the baby reaches age 2.

Detailed explanation-5: -The sagittal suture is the first to close, typically at around 22 years of age; the coronal suture closes at around 24 years; and the lambdoid and squamosal sutures close at around 26 and 60 years, respectively (2).