Metopic suture usually disappears by
Frontal bone ossifies in membrane.
It develops from 2 centres near frontal eminences, during 8th week of intrauterine life.
At birth, the bone is in 2 halves, separated in the midline by a suture, known as metopic suture, which soon starts to fuse.
It usually fuse and gets disappeared by 2 years of age.
The metopic suture occasionally persists in 3 to 8% of individuals.
Premature closure of metopic suture is known as metopic craniosynostosis, resulting in trigonocephaly - triangle shaped head.
2 years
8 years
4 years
6 years