Various types of Suture Closure

Suture closure in our Skull occurs at a certain age and the proper Suture closure is important for the bone formation and structural integrity of the Skull.

The infant Skull has 45 bones which occur many changes and suture closure changes take place and the Adult Skull has 22 Bones. So there are close to 20 sutures in the Skull.

Th various terms which are used to depict the closure of Sutures either pathological or physiological.


  • Fusion of 2 adjacent bones by a cartilage.
  • Ex: Spheno-Occipital


  • Early closure of a suture or early fusion of 2 adjacent bones by a bone.
  • Ex: Symphysis menti


  • Fusion of 2 adjacent bones by a fibrous ligament.

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