ANATOMY

Detailed explanation-1: -Cementum is a thin layer of hard dental tissue covering the anatomic roots of teeth. It is formed by cells known as cementoblasts, which develop from undifferentiated mesenchymal cells in the connective tissue of the dental follicle.

Detailed explanation-2: -The evolutionary origin of the cementum is a lining bone tissue that ties the dermal bone to the dermal tooth in Ostradodermi (armored fish, Agnatha, cartilaginous vertebrate). The connective tissue around the dermal tooth forms it, and it is absorbed after connecting the tooth in tooth replacement.

Detailed explanation-3: -Similar to the alveolar bone, the periodontal ligament is derived from the dental sac.

Detailed explanation-4: -Mesenchymal cells within the dental papilla are responsible for formation of tooth pulp. The dental follicle gives rise to three important entities: cementoblasts, osteoblasts, and fibroblasts. Cementoblasts form the cementum of a tooth.

Detailed explanation-5: -The dental sac or follicle gives rise to three important entities: cementoblasts, osteoblasts, and fibroblasts.