Types Of Cementum

Types Of Cementum

“What are the types of cementum? A detailed question and answers guide”

Types of cementum.
Answer:

1. Based on location:

1. Radicular cementum:
   1. It covers the anatomical roots of the teeth.
   2. It forms the main bulk
2. Coronal cementum:
   1. It covers the enamel at CEJ.
   2. It is poorly developed.

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2. Based on the presence or absence of cementocytes:

1. Cellular cementum:
   • It contains cementocytes in lacunae.
   • It is also known as secondary cementum as it is formed after the tooth reaches the occlusal plane.
2. Acellular cementum:
   • It does not contain any cells.
   • It is also known as primary cementum as it is the first formed cementum.

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3. Based on the presence or absence of fibrils in the matrix:

1. Fibrillar cementum.
2. This contains well-defined and densely packed collagen in the matrix.
3. A fibrillar cementum.
4. This does not have any fibers – intrinsic/extrinsic.