Tuesday, July 3, 2018

Enamel Lamellae

Thin, leaf-like structure that extends from enamel surface towards DEJ
Sometimes, they penetrate towards DEJ
They consist of organic material but with a little amount of mineral content.

Types of enamel lamellae:

  • Type A: Lamelle composed of poorly calcified rod segments
  • Type B: Lamelle consists of degenerated cells
  • Type C: Lamelle arising in erupted teeth where cracks are filled with organic material, originating from saliva

Type A is restricted to enamel
Type B and C are restricted to dentine

Clinical Significance: 

  • It is a site of weakness in a tooth.
  • It forms a road of entry for bacteria to initiate caries.
Written By Anisha Valli

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